ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

General Procedures > < Fuel Charging and Controls
Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel - Fuel Charging and Controls Transit 2006.5 (04/2006-)
Diagnosis and Testing

Special Tool(s)

Diagnostic Tool, Common Rail Fuel Injection

310-129

Hand Pressure Pump with Adapter Kit

310-110

Test Hose for 310-025

310-025-18

Test Hose for 310-025

310-025-19A

General Equipment
Ford approved diagnostic tool
Pneumatic vacuum gun

Principles of Operation

System overview

 
Item
Part Number
Description
1
-
Fuel tank to fuel filter fuel supply line
2
-
Fuel filter to fuel tank fuel return line
3
-
Fuel injector numbers 3 and 4 high-pressure fuel supply lines
4
-
Fuel pump, fuel rail and fuel injectors fuel return line
5
-
Fuel filter to fuel pump fuel supply line
6
-
Fuel pump
7
-
Fuel rail
8
-
Fuel pump to fuel rail high-pressure fuel supply line
9
-
Fuel injector numbers 1 and 2 high-pressure fuel supply lines
10
-
Fuel injectors
11
-
Fuel filter element

To meet the increasing demands for lower exhaust emissions, greater economy, improved driving characteristics, lower noise output and increased power output from modern diesel engines, the vehicle requires a fuel supply system which can deliver small fuel droplets at high speed with refined control. The common rail fuel injection system has been introduced to the diesel engine to meet these demands.

The Denso system installed to the 2.4L Duratorq-TDCi (Puma) diesel engine fulfills this role by using controlled high-pressure fuel delivery to individually electronically controlled injectors.

Fuel pump

Vehicles with 2.4L Duratorq-TDCi (Puma) diesel engine

 
Item
Part Number
Description
1
-
Fuel pump fuel return union
2
-
Fuel metering valve
3
-
Fuel pump fuel supply union
4
-
Fuel pump O-ring seal
5
-
Fuel pump input shaft
6
-
High-pressure fuel pump chamber
7
-
Fuel temperature sensor
8
-
High-pressure fuel pump chamber
9
-
Fuel pump high-pressure outlet union

The fuel pump installed to the 2.4L Duratorq-TDCi (Puma) diesel engine is driven by the crankshaft by means of a timing chain. The fuel pump is located at the front end of the cylinder block.

Fuel is drawn from the fuel tank through the fuel filter by means of a transfer pump. The transfer pump is built into the high-pressure pump and driven by the high-pressure pump input shaft.

Fuel from the transfer pump is pushed through the fuel pump low-pressure fuel intake channel passing through the fuel metering valve into the high-pressure fuel pump chamber.

Any excess fuel drawn by the transfer pump is dispersed through the fuel pump fuel return union and returned to the fuel tank.

A fuel metering valve is situated in the high-pressure pump low pressure fuel intake channel. The fuel metering valve is controlled by the powertrain control module (PCM). A fuel pressure sensor input signal is used by the PCM to calculate the position required by the fuel metering valve to achieve the desired fuel rail pressure. The fuel metering valve reduces the cross sectional area of the high-pressure pump low pressure fuel intake channel and so decreases the quantity of fuel allowed to reach the high-pressure fuel pump chamber.

If a concern occurs with the operation of the fuel metering valve, the fuel metering valve will default to the open position, until the concern is corrected or a new fuel pump is installed. The fuel pump will over-pressurize and the engine will run but with reduced power.

Located in the rear of the fuel pump is a fuel temperature sensor which monitors the fuel transfer pump fuel return temperature. The fuel temperature sensor information is used by the PCM to adjust the fuel metering valve to compensate for cold fuel charge values.

If the fuel temperature sensor or its related circuits become shorted to ground, the PCM will initiate the limited operating strategy.

If the fuel temperature sensor or its related circuits become open circuit, the PCM will revert to a default value and cold start characteristics will be impaired.

If a new fuel pump is to be installed to the vehicle, use the Ford approved diagnostic tool to initiate the fuel pump learning process. Failure to carry out the fuel pump learning process will result in rough idling of the engine and incorrect engine emissions.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).

Fuel pump high-pressure fuel development

CAUTION:
CAUTION:The fuel pump relies on the fuel in the fuel pump for lubrication. The fuel pump input shaft should not be allowed to rotate above hand cranking speed unless the air has been bled from the fuel pump fuel supply lines and fuel is present in the fuel transfer pump. Failure to follow this instruction may result in damage to the internal components of the fuel pump.

Fuel enters the fuel pump chamber through a fuel intake valve. The intake valve will only allow fuel to enter the fuel pump chamber, if the fuel pressure in the chamber is lower than the pressure in the fuel pump low pressure fuel intake channel.

The fuel pump input shaft rotates an eccentric cam clockwise, which allows the plungers to be moved in and out (like pistons) to produce the high-pressure fuel inside the high-pressure chambers.

The fuel in the current compression chamber (dependent on the fuel pump input shaft position) is subjected to high-pressure.

The fuel pump fuel outlet valve will remain closed until the fuel pressure inside the chamber exceeds the pressure in the fuel rail.

When the fuel outlet valve opens, due to the high-pressure of the fuel, the fuel is released to the fuel rail through the fuel pump high-pressure outlet union.

The fuel pump input shaft rotates 360 degrees (two stages of high-pressure fuel development) to complete one full cycle.

First stage of high-pressure fuel development

 
Item
Part Number
Description
1
-
Fuel outlet port
2
-
High-pressure fuel pump cam ring
3
-
Fuel intake valve
4
-
High-pressure fuel pump chamber
5
-
Fuel intake port
6
-
Eccentric cam
7
-
Fuel metering valve

Second stage of high-pressure fuel development

 
Item
Part Number
Description
1
-
Fuel outlet port
2
-
High-pressure fuel pump cam ring
3
-
Fuel outlet valve
4
-
High-pressure fuel pump chamber
5
-
Fuel intake port
6
-
Eccentric cam
7
-
Fuel metering valve
8
-
Fuel intake valve

Third stage of high-pressure fuel development

 
Item
Part Number
Description
1
-
Fuel outlet port
2
-
High-pressure fuel pump cam ring
3
-
Fuel outlet valve
4
-
High-pressure fuel pump chamber
5
-
Fuel intake port
6
-
Eccentric cam
7
-
Fuel metering valve
8
-
Fuel intake valve

Fourth stage of high-pressure fuel development

 
Item
Part Number
Description
1
-
Fuel outlet port
2
-
High-pressure fuel pump cam ring
3
-
Fuel intake valve
4
-
High-pressure fuel pump chamber
5
-
Fuel intake port
6
-
Eccentric cam
7
-
Fuel metering valve
8
-
Fuel outlet valve

Fuel pump fuel flow and control

Under normal demand conditions, fuel is delivered to the high-pressure fuel pump chamber unrestricted where it is compressed and delivered to the fuel rail.

A small proportion of fuel is diverted through the fuel pump internal regulator valve. This returned fuel is used to lubricate and cool the fuel pump.

When the engine is off demand (decelerating), the fuel metering valve restricts the fuel pump fuel supply to the high-pressure chamber, which then decreases the high-pressure fuel supply to the fuel rail and fuel injectors.

Fuel rail

 
Item
Part Number
Description
1
-
Fuel rail pressure (FRP) sensor
2
-
Fuel rail to fuel injector number 1 high-pressure fuel supply line union
3
-
Fuel rail to fuel injector number 2 high-pressure fuel supply line union
4
-
Fuel rail to fuel injector number 3 high-pressure fuel supply line union
5
-
Fuel rail to fuel injector number 4 high-pressure fuel supply line union
6
-
Fuel spigot
7
-
Fuel pressure relief valve
8
-
Fuel rail

The fuel rail function is to supply a reservoir of fuel at a constant controlled pressure to all four fuel injectors.

The action of the fuel injectors opening and closing causes changes in pressure to the fuel behind the fuel injector. The fuel rail acts as an accumulator, minimizing this affect.

The volume of fuel held by the fuel rail cannot be too large as this will cause an increase in pressurization time and a corresponding increase in engine start time.

The four fuel injector high-pressure fuel lines attached to the fuel rail are of equal length. This is to eliminate any variation in delivery pressure at the fuel injectors.

Installed into one end of the fuel rail is the FRP sensor. The FRP sensor monitors the current fuel pressure available at the fuel injectors. The FRP sensor is a non-serviceable unit and must be installed as part of a new fuel rail.

If the FRP sensor does not see a minimum preset value during cranking, the PCM will not allow the fuel injectors to inject and the engine will not start.

If the FRP sensor signal to the PCM is lost or the value indicated does not match the expected value for the given engine condition, the fuel metering valve will default to the open position.

Installed into the other end of the fuel rail is the fuel pressure relief valve. The fuel pressure relief valve monitors the fuel pressure in the fuel rail. If the fuel pressure becomes abnormally high, the fuel pressure relief valve opens to allow the excess fuel to return to the fuel tank and reduce the fuel pressure to the correct value. The fuel pressure relief valve is a serviceable part. When the fuel pressure relief valve has been triggered a diagnostic trouble code (DTC) will be stored in the PCM and the malfunction indicator lamp (MIL) will be illuminated. When the DTC has been triggered, a new fuel pressure relief valve must be installed.

Fuel injector

 
Item
Part Number
Description
1
-
Fuel injector fuel return line retaining clip
2
-
Fuel injector electrical connector
3
-
Fuel injector high-pressure fuel supply line union
4
-
Fuel injector
5
-
Fuel injector sealing washer
6
-
Fuel injector high-pressure fuel nozzle

The fuel injector consists of two main sections.

  • Electrically operated solenoid control valve.
  • Hydraulically operated fuel injection valve.

The solenoid has a switching time of approximately 0.4 milliseconds. This short switching time is achieved by keeping the moving components and the distances required to function to a minimum. The design of the fuel injector chambers means that at no time does the solenoid work against any major forces other than that of the two-way valve spring.

The fuel injector nozzle works on a combination of hydraulic and spring control.

All fuel injectors are calibrated to take into account manufacturing tolerances. These calibrations are indicated on the exterior of the fuel injector by a code. The code is used by the PCM to adjust the duration of the fuel injection cycle.

If the codes for the individual fuel injectors are incorrectly matched to the codes stored in the PCM, the engine may exhibit rough idle, increased combustion noise and black smoke emissions.

Fuel injector working state closed

 
Item
Part Number
Description
1
-
Solenoid
2
-
Control chamber
3
-
Intake orifice
4
-
Injector nozzle
5
-
Command piston
6
-
Outlet orifice
7
-
Two-way valve

With the solenoid de-energized, the two-way valve is held in the closed position by the injection control valve spring.

Fuel pressure in the control chamber and the lower chamber is equal to the high-pressure fuel supply pressure. The injector nozzle is held in the closed position by the injector nozzle control spring.

Fuel injector working state opening/injecting

 
Item
Part Number
Description
1
-
Solenoid
2
-
Control chamber
3
-
Intake orifice
4
-
Injector nozzle
5
-
Command piston
6
-
Outlet orifice
7
-
Two-way valve

The fuel injection process starts with a voltage being applied to the solenoid with a pull-in current of 18 amperes.

The solenoid moves the two-way valve against the pressure of the two-way valve spring.

The two-way valve releases the high-pressure fuel from the control chamber and as the pressure decreases, the command piston is pulled up. This causes the injector nozzle to rise and injection to start.

Fuel injector working state closing

 
Item
Part Number
Description
1
-
Solenoid
2
-
Control chamber
3
-
Intake orifice
4
-
Injector nozzle
5
-
Command piston
6
-
Outlet orifice
7
-
Two-way valve

When the solenoid is de-energized, the two-way valve falls and closes the orifice. Fuel then flows into the control chamber through the intake orifice, increasing pressure, which causes the injector nozzle to close and injection to stop.

Fuel injector fuel return

The amount of return fuel developed during the normal functioning of a fuel injector indicates the condition of that fuel injector.

Fuel filter

 
Item
Part Number
Description
1
-
Fuel filter wiring harness
2
-
Fuel tank fuel return line union
3
-
Fuel filter fuel supply line union
4
-
Water-in-fuel sensor
5
-
Water-in-fuel sensor probe/fuel filter drain valve
6
-
Fuel filter element
7
-
Water-in-fuel sensor probe electrical connector
8
-
Fuel pump fuel supply line union
9
-
Fuel pump, fuel rail and fuel injectors fuel return line union

The fuel system is designed to prevent the fuel tank and fuel injection system being run dry. When the fuel tank level reaches a preset limit, after the low fuel indicator has been illuminated, the engine will be made to run rough to indicate that the fuel level in the fuel tank is very low. To protect the fuel injection components if this warning is ignored, the PCM will terminate the fuel injection process and the engine will stop.

The fuel filter element in the common rail fuel system is designed to extract far smaller particles from the fuel supply than conventional fuel filters.

To aid with the rapid warm-up of the fuel supply to the fuel pump, the fuel filter is fitted with a temperature conscious fuel return bypass valve.

At temperatures below 50°C, the bypass valve is fully open and the majority of the returned fuel is circulated through the fuel filter and back to the fuel pump.

When the fuel temperature in the fuel filter has reached a temperature above 50°C, the fuel return bypass valve closes and the returned fuel is delivered back to the fuel tank. In certain markets, the return fuel passes through a fuel cooler before returning to the fuel tank.

Inspection and Verification

WARNING:
WARNING:Do not smoke or carry lighted tobacco of any type when working on or near any fuel related components. Highly flammable mixtures are always present and may ignite. Failure to follow these instructions may result in personal injury.
WARNING:
WARNING:This procedure involves fuel handling. Be prepared for fuel spillage at all times. Failure to follow this instruction may result in personal injury.
CAUTION:
CAUTION:Diesel fuel injection equipment is manufactured to very precise tolerances and fine clearances. It is therefore essential that absolute cleanliness is observed when working with these components. Always fit blanking plugs to any open orifices or lines.
NOTE:
NOTE:As well as carrying out its normal function the glow plug indicator also acts as an engine check lamp which will flash continuously when a hard DTC is detected by the PCM. Soft DTCs are also stored by the PCM but will only be known if the system is checked for DTCs using the Ford approved diagnostic tool.
NOTE:
NOTE:If a DTC is detected, all DTCs must be cleared after the concern is repaired. Failure to clear all DTCs may cause driveability concerns.
NOTE:
NOTE:If the fuel level in the fuel tank drops below approximately four liters, rough running will occur. This is to signal to the driver that the vehicle requires refuelling in order to prevent the fuel system from running dry.
  1. Verify the customer concern.
  1. Visually inspect for obvious signs of mechanical or electrical damage.

Visual Inspection Chart

Mechanical Electrical
Fuel leak(s) Fuse(s)
Fuel filter Wiring harness
Air cleaner element Electrical connector(s)
Vacuum line(s)/vacuum connectors Relay(s)
Hose(s)/hose connectors Passive anti-theft system (PATS) LED operation
Tube(s)/tube connectors Sensor(s)
Contaminated fuel Glow plug indicator
Fuel supply line(s) PCM
Fuel return line(s)
High-pressure fuel supply line(s)
Fuel injectors
Fuel rail
Fuel pump
  1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  1. NOTE:
    NOTE:A PCM calibration update should only be carried out if it is applicable to the symptoms exhibited by the vehicle.
    If the cause is not visually evident, verify the symptom and refer to the Ford approved diagnostic tool. Check for the availability of an applicable PCM calibration update. Continue using the Ford approved diagnostic tool and retrieve the DTCs and refer to the DTC Index Chart.

DTC Index Chart

DTC Description/Condition Possible Source Action
P0089 Fuel pressure relief valve open Circuit(s), air ingress into the fuel lines, fuel metering valve
P1250 Fuel metering valve controllability failure (displayed in addition to DTC P0089) Circuit(s), air ingress into the fuel lines, fuel metering valve
  1. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics.

Symptom Chart

Symptom Possible Sources Action
Engine does not crank and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Engine does not crank
*
Passive anti-theft system (PATS).
*
CHECK the PATS LED extinguishes within 3 seconds when the ignition is turned on.
REFER to: Anti-Theft - Active (419-01A Anti-Theft - Active, Diagnosis and Testing).
*
Starting system.
*
REFER to: Starting System (303-06 Starting System, Diagnosis and Testing).
*
Ignition switch.
*
REFER to the Wiring Diagrams.
*
PCM.
*
REFER to the Ford approved diagnostic tool.
*
Engine locked.
*
REFER to: Engine (303-00 Engine System - General Information, Diagnosis and Testing).
*
Accessories locked.
*
REFER to: Accessory Drive (303-05 Accessory Drive, Diagnosis and Testing).
Engine cranks but does not start and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Engine cranks but does not start
*
Battery
*
REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).
*
Low fuel tank fuel level.
*
CHECK the fuel tank fuel level is greater than four liters. If the fuel tank fuel level is less then four litres, FILL with fuel.
*
Inertia fuel shutoff (IFS) switch.
*
RESET the IFS switch.
*
Fuel pump.
*
REFER to the Ford approved diagnostic tool.
*
Fuel injectors.
*
REFER to the Ford approved diagnostic tool.
*
Fuel filter blocked.
*
GO to Pinpoint Test A.
*
Fuel lines damaged or blocked.
*
GO to Pinpoint Test A.
*
Air ingress into the fuel lines.
*
REFER to: Fuel System (310-00 Fuel System - General Information, Diagnosis and Testing).
*
Glow plug relay.
*
REFER to the Ford approved diagnostic tool.
*
Glow plugs.
*
REFER to the Ford approved diagnostic tool.
*
Crankshaft position (CKP) sensor.
*
REFER to the Ford approved diagnostic tool.
*
Camshaft position (CMP) sensor.
*
REFER to the Ford approved diagnostic tool.
*
Cylinder head temperature (CHT) sensor.
*
REFER to the Ford approved diagnostic tool.
*
FRP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Fuel intake metering valve.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect valve timing.
*
CHECK the valve timing.
*
Low cylinder compression.
*
TEST the cylinder compression.
*
PCM.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Incorrect pilot learn.
*
Incorrect pump learn.
*
REFER to the Ford approved diagnostic tool.
*
Accessories load.
*
REFER to: Accessory Drive (303-05 Accessory Drive, Diagnosis and Testing).
*
Air intake blocked.
*
REFER to: Intake Air Distribution and Filtering (303-12 Intake Air Distribution and Filtering, Diagnosis and Testing).
Poor starting and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Poor starting
*
Low fuel tank fuel level.
*
CHECK the fuel tank fuel level is greater than four liters. If the fuel tank fuel level is less then four litres, FILL with fuel.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Fuel filter blocked.
*
GO to Pinpoint Test A.
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element.
*
Glow plug relay.
*
REFER to the Ford approved diagnostic tool.
*
Glow plugs.
*
REFER to the Ford approved diagnostic tool.
*
Fuel system leak.
*
CHECK the system for fuel leak(s). REPAIR the system as necessary.
*
Air ingress into the fuel lines.
*
REFER to: Fuel System (310-00 Fuel System - General Information, Diagnosis and Testing).
*
Fuel system restriction.
*
GO to Pinpoint Test A.
*
Fuel pump.
*
GO to Pinpoint Test A.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
Accessories load.
*
REFER to: Accessory Drive (303-05 Accessory Drive, Diagnosis and Testing).
*
Incorrect engine oil.
*
INSTALL a new engine oil filter and engine oil. CARRY OUT the oil reset procedure. REFER to the Service interval indicator lamp section within the Owner's Guide.
*
Incorrect power steering fluid.
*
DRAIN and REFILL the power steering system with the correct fluid.
REFER to: Power Steering System Flushing - 2.2L Duratorq-TDCi (Puma) Diesel/2.4L Duratorq-TDCi (Puma) Diesel (211-00 Steering System - General Information, General Procedures) /
Power Steering System Filling (211-00 Steering System - General Information, General Procedures) /
Power Steering System Bleeding (211-00 Steering System - General Information, General Procedures).
*
CKP sensor.
*
REFER to the Ford approved diagnostic tool.
*
CHT sensor.
*
REFER to the Ford approved diagnostic tool.
*
Manifold absolute pressure and temperature (MAPT) sensor.
*
REFER to the Ford approved diagnostic tool.
*
FRP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Fuel intake metering valve.
*
REFER to the Ford approved diagnostic tool.
*
Catalytic converter blocked.
*
REMOVE and visually INSPECT the catalytic converter as necessary.
REFER to: Catalytic Converter - 2.4L Duratorq-TDCi (Puma) Diesel/3.2L Duratorq-TDCi (Puma) Diesel (309-00 Exhaust System, Removal and Installation).
*
Low cylinder compression.
*
TEST the cylinder compression.
Engine starts but immediately stops and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Engine starts but immediately stops
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element.
*
Air ingress into the fuel lines.
*
REFER to: Fuel System (310-00 Fuel System - General Information, Diagnosis and Testing).
*
PCM relay.
*
CARRY OUT the relay component test. REFER to Wiring Diagrams.
*
Accessories load.
*
REFER to: Accessory Drive (303-05 Accessory Drive, Diagnosis and Testing).
*
CKP sensor.
*
REFER to the Ford approved diagnostic tool.
*
CMP sensor.
*
REFER to the Ford approved diagnostic tool.
*
CHT sensor.
*
REFER to the Ford approved diagnostic tool.
*
Fuel intake metering valve.
*
REFER to the Ford approved diagnostic tool.
*
PCM.
*
REFER to the Ford approved diagnostic tool.
*
Dual mass flywheel.
*
Visually INSPECT the dual mass flywheel for damage. INSTALL new parts as necessary.
Poor idling and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Poor idling
*
Low fuel tank fuel level.
*
CHECK the fuel tank fuel level is greater than four liters. If the fuel tank fuel level is less then four litres, FILL with fuel.
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element.
*
Accessories load.
*
REFER to: Accessory Drive (303-05 Accessory Drive, Diagnosis and Testing).
*
Fuel filter blocked.
*
GO to Pinpoint Test A.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Air ingress into the fuel lines.
*
REFER to: Fuel System (310-00 Fuel System - General Information, Diagnosis and Testing).
*
EGR valve sticking open.
*
REFER to: Engine Emission Control (303-08 Engine Emission Control, Diagnosis and Testing).
*
MAPT sensor.
*
REFER to the Ford approved diagnostic tool.
*
CKP sensor.
*
REFER to the Ford approved diagnostic tool.
*
FRP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Fuel intake metering valve.
*
REFER to the Ford approved diagnostic tool.
*
Fuel pump.
*
GO to Pinpoint Test A.
*
Dual mass flywheel.
*
Visually INSPECT the dual mass flywheel for damage. INSTALL new parts as necessary.
Engine stumbling and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Engine stumbling
*
Low fuel level.
*
CHECK the fuel tank level is greater than four liters. If the fuel tank level is less than four litres, FILL with fuel.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Accelerator pedal position (APP) sensor.
*
REFER to the Ford approved diagnostic tool.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
Fuel pump.
*
GO to Pinpoint Test A.
*
FRP sensor.
*
REFER to the Ford approved diagnostic tool.
*
CKP sensor.
*
REFER to the Ford approved diagnostic tool.
*
CMP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Dual mass flywheel.
*
Visually INSPECT the dual mass flywheel for damage. INSTALL new parts as necessary.
Engine lacks power and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Engine lacks power
*
Low fuel level.
*
CHECK the fuel tank level is greater than four liters. If the fuel tank level is less than four liters, FILL with fuel.
*
Fuel system leak(s).
*
Carry out a Fuel System Leak Test using the Ford approved diagnostic tool menu options: ToolBox/Powertrain/Service Functions. REFER to the Ford approved diagnostic tool.
*
Brakes binding.
*
CHECK the braking system.
REFER to: Brake System (206-00 Brake System - General Information, Diagnosis and Testing).
*
Vehicle overloaded, or excessive wind resistance (roof racks, towing etc).
*
ADVISE the customer about the effects of overloading the vehicle and wind resistance on the performance.
*
Accessories load.
*
REFER to: Accessory Drive (303-05 Accessory Drive, Diagnosis and Testing).
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element as necessary.
*
Fuel filter blocked.
*
GO to Pinpoint Test A.
*
Kinked or restricted fuel lines.
*
GO to Pinpoint Test A.
*
Fuel pump.
*
GO to Pinpoint Test A.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
Air ingress into the fuel lines.
*
REFER to: Fuel System (310-00 Fuel System - General Information, Diagnosis and Testing).
*
Turbocharger.
*
Turbocharger vacuum control.
*
Turbocharger vacuum diaphragm unit.
*
Vane adjustment solenoid valve.
*
INSPECT the vacuum line(s) for visible signs of damage or blockage. CLEAN, REPAIR or INSTALL new parts as necessary.
*
EGR valve sticking open.
*
REFER to: Engine Emission Control (303-08 Engine Emission Control, Diagnosis and Testing).
*
Charge air cooler blocked or cracked.
*
Charge air cooler pipes split or cracked.
*
Charge air cooler retaining clips missing or loose.
*
INSPECT for visible signs of damage or blockage. CLEAN, REPAIR or INSTALL new parts as necessary.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Vehicle speed sensor (VSS).
*
REFER to the Ford approved diagnostic tool.
*
CHT sensor.
*
REFER to the Ford approved diagnostic tool.
*
MAPT sensor.
*
REFER to the Ford approved diagnostic tool.
*
MAF sensor.
*
REFER to the Ford approved diagnostic tool.
*
APP sensor.
*
REFER to the Ford approved diagnostic tool.
*
CKP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Fuel pressure relief valve.
*
REFER to the Ford approved diagnostic tool.
*
FRP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Fuel intake metering valve.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect valve timing.
*
CHECK the valve timing.
*
Low cylinder compression.
*
CHECK the cylinder compression
*
Catalytic converter blocked.
*
REMOVE and visually INSPECT the catalytic converter for damage. INSTALL a new catalytic converter as necessary.
REFER to: Catalytic Converter - 2.4L Duratorq-TDCi (Puma) Diesel/3.2L Duratorq-TDCi (Puma) Diesel (309-00 Exhaust System, Removal and Installation).
*
Wiring harness/connector.
*
REFER to the Ford approved diagnostic tool.
*
PCM.
*
REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls, Diagnosis and Testing).
Black smoke at idle and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Black smoke at idle
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04B Fuel Charging and Controls - 2.2L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04B Fuel Charging and Controls - 2.2L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04B Fuel Charging and Controls - 2.2L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element as necessary.
*
Glow plug relay.
*
REFER to the Ford approved diagnostic tool.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
Turbocharger vacuum control.
*
Vane adjustment solenoid valve.
*
INSPECT for visible signs of damage or blockage. CLEAN, REPAIR or INSTALL new parts as necessary.
REFER to: Turbocharger (303-04E Fuel Charging and Controls - Turbocharger, Diagnosis and Testing).
*
Incorrect pilot learn.
*
Incorrect pump learn.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect engine timing.
*
REFER to the Ford approved diagnostic tool.
*
Fuel pressure relief valve.
*
REFER to the Ford approved diagnostic tool.
*
CHT sensor.
*
REFER to the Ford approved diagnostic tool.
*
CKP sensor.
*
REFER to the Ford approved diagnostic tool.
*
MAPT sensor.
*
REFER to the Ford approved diagnostic tool.
*
FRP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect valve timing.
*
CHECK the valve timing.
*
Catalytic converter blocked.
*
REMOVE and visually INSPECT the catalytic converter for damage. INSTALL a new catalytic converter as necessary.
REFER to: Catalytic Converter - 2.4L Duratorq-TDCi (Puma) Diesel/3.2L Duratorq-TDCi (Puma) Diesel (309-00 Exhaust System, Removal and Installation).
*
Wiring harness/connector.
*
REFER to the Ford approved diagnostic tool.
*
PCM.
*
REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls, Diagnosis and Testing).
Excessive black smoke during acceleration and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Excessive black smoke during acceleration
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element as necessary.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
EGR valve sticking open.
*
REFER to: Engine Emission Control (303-08 Engine Emission Control, Diagnosis and Testing).
*
Incorrect pilot learn.
*
Incorrect pump learn.
*
REFER to the Ford approved diagnostic tool.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
APP sensor.
*
REFER to the Ford approved diagnostic tool.
*
CKP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Fuel pressure relief valve.
*
REFER to the Ford approved diagnostic tool.
*
FRP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Catalytic converter blocked.
*
REMOVE and visually INSPECT the catalytic converter for damage. INSTALL a new catalytic converter as necessary.
REFER to: Catalytic Converter - 2.4L Duratorq-TDCi (Puma) Diesel/3.2L Duratorq-TDCi (Puma) Diesel (309-00 Exhaust System, Removal and Installation).
*
Wiring harness/connector.
*
REFER to the Ford approved diagnostic tool.
*
PCM.
*
REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls, Diagnosis and Testing).
Black smoke at cruising speeds and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Black smoke at cruising speeds
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element.
*
EGR valve sticking open.
*
REFER to: Engine Emission Control (303-08 Engine Emission Control, Diagnosis and Testing).
*
Incorrect pilot learn.
*
Incorrect pump learn.
*
REFER to the Ford approved diagnostic tool.
*
Fuel pressure relief valve.
*
REFER to the Ford approved diagnostic tool.
*
Turbocharger vacuum diaphragm unit.
*
Vane adjustment solenoid valve.
*
REFER to: Turbocharger (303-04E Fuel Charging and Controls - Turbocharger, Diagnosis and Testing).
*
Incorrect engine timing.
*
REFER to the Ford approved diagnostic tool.
*
CHT sensor.
*
REFER to the Ford approved diagnostic tool.
*
MAPT sensor.
*
REFER to the Ford approved diagnostic tool.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
FRP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Catalytic converter blocked.
*
REMOVE and visually INSPECT the catalytic converter for damage. INSTALL a new catalytic converter as necessary.
REFER to: Catalytic Converter - 2.4L Duratorq-TDCi (Puma) Diesel/3.2L Duratorq-TDCi (Puma) Diesel (309-00 Exhaust System, Removal and Installation).
*
Wiring harness/connector.
*
REFER to the Ford approved diagnostic tool.
*
PCM.
*
REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls, Diagnosis and Testing).
Blue smoke and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Blue smoke
*
Engine burning oil.
*
CARRY OUT a controlled oil consumption test over 1000 km (600 miles). CONFIRM that the oil consumption is less than 0.1 litre per 1000 km (600 miles).
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Positive crankcase ventilation (PCV) system.
*
INSPECT for visible signs of damage or blockage. CLEAN, REPAIR or INSTALL new parts as necessary.
*
Turbocharger oil return tube blocked or damaged.
*
REFER to: Turbocharger (303-04E Fuel Charging and Controls - Turbocharger, Diagnosis and Testing).
*
Worn or damaged valve guide(s), piston ring(s), cylinder bore(s), cylinder head or gasket.
*
REMOVE the cylinder head. INSPECT the cylinder head, pistons and cylinder bores for signs of wear or damage.
REFER to: Cylinder Head (303-01C Engine - 2.4L Duratorq-TDCi (Puma) Diesel, In-vehicle Repair).
White smoke and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
White smoke
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Incorrect pilot learn.
*
Incorrect pump learn.
*
REFER to the Ford approved diagnostic tool.
*
Fuel pressure relief valve.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect engine timing.
*
REFER to the Ford approved diagnostic tool.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
EGR valve sticking open.
*
REFER to: Engine Emission Control (303-08 Engine Emission Control, Diagnosis and Testing).
*
Incorrect valve timing.
*
CHECK the valve timing.
*
Coolant in the combustion chamber.
*
CARRY OUT a cooling system pressure test.
REFER to: Engine Cooling - 2.2L Duratorq-TDCi (Puma) Diesel/2.4L Duratorq-TDCi (Puma) Diesel (303-03 Engine Cooling, Diagnosis and Testing).
REMOVE the cylinder head. INSPECT the cylinder head, cylinder head gasket and cylinder bores for wear or damage.
REFER to: Cylinder Head (303-01C Engine - 2.4L Duratorq-TDCi (Puma) Diesel, In-vehicle Repair).
*
Wiring harness/connector.
*
REFER to the Ford approved diagnostic tool.
*
PCM.
*
REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls, Diagnosis and Testing).
Engine misfire and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Engine misfire
*
Low fuel tank level.
*
CHECK the fuel tank level is greater than four liters. If the fuel tank level is less than four litres, FILL with fuel.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Incorrect pilot learn.
*
Incorrect pump learn.
*
REFER to the Ford approved diagnostic tool.
*
Fuel pressure relief valve.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect engine timing.
*
REFER to the Ford approved diagnostic tool.
*
Air ingress into the fuel lines.
*
REFER to: Fuel System (310-00 Fuel System - General Information, Diagnosis and Testing).
*
Fuel pump.
*
GO to Pinpoint Test A.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
EGR valve sticking open.
*
REFER to: Engine Emission Control (303-08 Engine Emission Control, Diagnosis and Testing).
*
Engine operating temperature too high.
*
REFER to: Engine Cooling - 2.2L Duratorq-TDCi (Puma) Diesel/2.4L Duratorq-TDCi (Puma) Diesel (303-03 Engine Cooling, Diagnosis and Testing).
*
CHT sensor.
*
REFER to the Ford approved diagnostic tool.
*
CKP sensor.
*
REFER to the Ford approved diagnostic tool.
*
CMP sensor.
*
REFER to the Ford approved diagnostic tool.
*
MAPT sensor.
*
REFER to the Ford approved diagnostic tool.
*
FRP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Low cylinder compression.
*
CHECK the cylinder compression.
*
Worn or damaged valve(s), tappet(s), camshaft(s) or cylinder head gasket.
*
REMOVE the cylinder head. INSPECT the cylinder head, valves, tappets and camshafts for signs of wear or damage.
REFER to: Cylinder Head (303-01C Engine - 2.4L Duratorq-TDCi (Puma) Diesel, In-vehicle Repair).
*
Wiring harness/connector.
*
REFER to the Ford approved diagnostic tool.
*
PCM.
*
REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls, Diagnosis and Testing).
Engine knock at idle and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Engine knock at idle
*
Low engine oil level.
*
CHECK the engine oil level. REFILL as necessary.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Incorrect pilot learn.
*
Incorrect pump learn.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect engine timing.
*
REFER to the Ford approved diagnostic tool.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
CKP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect valve timing.
*
CHECK the valve timing.
*
Excessive carbon build up.
*
REMOVE the cylinder head. INSPECT the cylinder head and pistons for signs carbon build up.
REFER to: Cylinder Head (303-01C Engine - 2.4L Duratorq-TDCi (Puma) Diesel, In-vehicle Repair).
*
Worn or damaged oil pump.
*
Worn or damaged timing chain or sprocket.
*
Major mechanical engine failure.
*
INSPECT the engine components.
*
Dual mass flywheel.
*
Visually INSPECT the dual mass flywheel for damage. INSTALL new parts as necessary.
*
Wiring harness/connector.
*
REFER to the Ford approved diagnostic tool.
*
PCM.
*
REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls, Diagnosis and Testing).
Engine knock during acceleration and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
Engine knock during acceleration
*
Incorrect pilot learn.
*
Incorrect pump learn.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect engine timing.
*
REFER to the Ford approved diagnostic tool.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
Fuel intake metering valve.
*
REFER to the Ford approved diagnostic tool.
*
Fuel pump.
*
GO to Pinpoint Test A.
*
Major mechanical engine failure.
*
REFER to: Engine (303-01C Engine - 2.4L Duratorq-TDCi (Puma) Diesel, Diagnosis and Testing).
*
Wiring harness/connector.
*
REFER to the Ford approved diagnostic tool.
*
PCM.
*
REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls, Diagnosis and Testing).
Excessive fuel consumption and glow plug indicator is flashing
*
DTC detected.
*
REFER to the Ford approved diagnostic tool.
NOTE:
NOTE:Before proceeding with any of the actions in relation to the possible sources for excessive fuel consumption, a fuel consumption test must be carried out using the Ford approved diagnostic tool.
Excessive fuel consumption
*
Brakes binding.
*
CHECK the braking system.
REFER to: Brake System (206-00 Brake System - General Information, Diagnosis and Testing).
*
Vehicle overloaded, or excessive wind resistance (roof racks, towing etc).
*
ADVISE the customer about the effects of overloading the vehicle and wind resistance on the fuel consumption.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odours from the fuel tank.
*
CHECK for signs of water or petrol in the diesel.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean diesel. INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines.
REFER to: Fuel Pump (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Injectors (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation) /
Fuel Rail (303-04C Fuel Charging and Controls - 2.4L Duratorq-TDCi (Puma) Diesel, Removal and Installation).
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element.
*
Fuel filter blocked.
*
GO to Pinpoint Test A.
*
Incorrect pilot learn.
*
Incorrect pump learn.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect engine timing.
*
REFER to the Ford approved diagnostic tool.
*
Fuel system leak(s).
*
CHECK the system for fuel leak(s). REPAIR or INSTALL new parts as necessary.
*
Incorrect engine oil.
*
INSTALL a new oil filter and engine oil.
*
Generator.
*
REFER to: Generator (414-02 Generator and Regulator, Diagnosis and Testing).
*
EGR valve sticking open.
*
REFER to: Engine Emission Control (303-08 Engine Emission Control, Diagnosis and Testing).
*
Turbocharger vacuum diaphragm unit.
*
REFER to: Turbocharger (303-04E Fuel Charging and Controls - Turbocharger, Diagnosis and Testing).
*
Air ingress into the fuel lines.
*
REFER to: Fuel System (310-00 Fuel System - General Information, Diagnosis and Testing).
*
Fuel pressure relief valve.
*
REFER to the Ford approved diagnostic tool.
*
CHT sensor.
*
REFER to the Ford approved diagnostic tool.
*
MAPT sensor.
*
REFER to the Ford approved diagnostic tool.
*
Fuel injector(s).
*
REFER to the Ford approved diagnostic tool.
*
Turbocharger.
*
REFER to: Turbocharger (303-04E Fuel Charging and Controls - Turbocharger, Diagnosis and Testing).
*
Incorrect valve timing.
*
CHECK the valve timing.
*
Slipping clutch.
*
REFER to: Manual Transmission and Clutch - Vehicles With: MT-75 (308-00 Manual Transmission/Transaxle and Clutch - General Information, Diagnosis and Testing) / Manual Transaxle and Clutch - Vehicles With: VXT-75 (308-00 Manual Transmission/Transaxle and Clutch - General Information, Diagnosis and Testing) / Manual Transmission and Clutch - Vehicles With: MT82 (308-00 Manual Transmission/Transaxle and Clutch - General Information, Diagnosis and Testing).
*
Low cylinder compression.
*
CHECK the cylinder compression.
*
Dual mass flywheel.
*
Visually INSPECT the dual mass flywheel for damage. INSTALL new parts as necessary.
*
Wiring harness/connector.
*
REFER to the Ford approved diagnostic tool.
*
PCM.
*
REFER to: Electronic Engine Controls (303-14 Electronic Engine Controls, Diagnosis and Testing).
Engine cuts out during hard acceleration
*
CMP sensor.
*
REFER to the Ford approved diagnostic tool.
*
CKP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Incorrect pilot learn.
*
Incorrect pump learn.
*
REFER to the Ford approved diagnostic tool.
*
Fuel pressure relief valve.
*
REFER to the Ford approved diagnostic tool.
*
FRP sensor.
*
REFER to the Ford approved diagnostic tool.
*
Fuel intake metering valve.
*
REFER to the Ford approved diagnostic tool.
*
Fuel pump.
*
GO to Pinpoint Test A.

PINPOINT TEST A : FUEL PUMP FUEL SUPPLY TEST

TEST CONDITIONS DETAILS/RESULTS/ACTIONS
A1: CHECK THE FUEL PUMP FUEL SUPPLY PRESSURE
1
Clean the area around the fuel filter quick release couplings.
REFER to: Fuel Injection Component Cleaning (303-04B Fuel Charging and Controls - 2.2L Duratorq-TDCi (Puma) Diesel, General Procedures).

2
Disconnect the fuel tank to fuel filter fuel supply line quick release coupling.
REFER to: Quick Release Coupling (310-00 Fuel System - General Information, General Procedures).

3
Install the special tool adapter to the fuel tank to fuel filter fuel supply line.

4
Install the special tool adapter to the fuel filter.

NOTE:
NOTE:Make sure that the hand primer arrow indicating the fuel flow is pointing towards the fuel filter.
5
Install the special tool between the special tool adapters.

6
Connect the Ford approved diagnostic tool pressure transducer to the special tool.
7
Using the Ford approved diagnostic tool, select the digital multi meter (DMM) function from the toolbox menu. Select the pressure vacuum transducer (PVT) function and configure the DMM to display pressure/vacuum.
8
Remove the lint-free material protecting the generator if installed.
9
Start the engine.
10
Allow the engine to idle for at least one minute.
11
Make a note of the value displayed by the Ford approved diagnostic tool.

Is the value displayed between -50 mB and -250 mB?
Yes
No
If the displayed value is between 0 mB and -50 mB, GO to A2. If the displayed value is -250 mB or a greater negative value, GO to A4.
A2: CHECK THE FUEL SYSTEM FOR AIR INGRESS
NOTE:
NOTE:A small amount of air bubbles in the fuel supply line is acceptable.
1
Observe the flow of fuel through the clear plastic pipe of the hand pressure pump.

Is the hand pressure pump clear plastic pipe free from an excessive volume of air bubbles?
Yes
Using the Ford approved diagnostic tool, guided diagnostic, run the fuel system pressure test, CHECK the fuel pump high-pressure fuel supply pressure.
No
CHECK for air ingress into the fuel lines.
REFER to: Fuel System (310-00 Fuel System - General Information, Diagnosis and Testing).
A3: CHECK THE FUEL PUMP FUEL RETURN PRESSURE
NOTE:
NOTE:Before this test can be carried out, the latest calibration must be programmed into the PCM.
1
Clean the area around the fuel injector to fuel pump fuel return line quick release coupling.
REFER to: Fuel Injection Component Cleaning (303-04B Fuel Charging and Controls - 2.2L Duratorq-TDCi (Puma) Diesel, General Procedures).

2
Connect special tools 310-025-18 and 310-025-19A to the Ford approved diagnostic tool pressure transducer adaptor GV2323.

3
Disconnect the fuel injector to fuel pump fuel return line quick release coupling.
REFER to: Quick Release Coupling (310-00 Fuel System - General Information, General Procedures).

4
Connect the special tools between the fuel injector to fuel pump fuel return line and the fuel pump.
5
Start the engine.
6
Using the Ford approved diagnostic tool data logger function, monitor the fuel system temperature until a temperature of over 50°C is obtained.
7
Stop the engine.
8
Disconnect the Ford approved diagnostic tool pressure transducer from the special tool 310-110.

9
Connect the Ford approved diagnostic tool pressure transducer to the Ford approved diagnostic tool pressure transducer adaptor GV2323.
10
Using the Ford approved diagnostic tool, select the digital multimeter (DMM) function from the toolbox menu. Select the pressure vacuum transducer (PVT) function and configure the DMM to display pressure/vacuum.
11
Start the engine.
12
Make a note of the value displayed by the Ford approved diagnostic tool with the engine at idle.

Is the value displayed less than 400mB at idle.
Yes
Using the Ford approved diagnostic tool fuel system fuel pressure test. CHECK the fuel pump high-pressure fuel supply pressure. If no fault is indicated with the fuel pump high-pressure fuel supply pressure, RETURN to the Symptom Chart.
No
CHECK the fuel return system for damage or restriction. REPAIR or INSTALL new components as required. TEST the system for normal operation.
A4: CHECK THE FUEL PUMP FUEL SUPPLY SYSTEM FOR RESTRICTION
1
Clean the area around the fuel pump fuel supply line quick release coupling.
REFER to: Fuel Injection Component Cleaning (303-04B Fuel Charging and Controls - 2.2L Duratorq-TDCi (Puma) Diesel, General Procedures).

2
Disconnect the fuel pump fuel supply line.
REFER to: Quick Release Coupling (310-00 Fuel System - General Information, General Procedures).
  • Install a blanking plug to the open end of the fuel pump union.
3
Place the open end of the fuel pump fuel supply line into a clean container.
4
Operate the hand pressure pump at least three times in rapid succession and observe the value displayed by the Ford approved diagnostic tool.

Does the fuel pressure indicated by the Ford approved diagnostic tool when operating the hand pressure pump instantly fall to zero when the hand pressure pump is released?
Yes
CHECK the fuel level sensor and fuel tank fuel supply line for restriction. REPAIR or INSTALL new components as required.
No
INSTALL a new fuel filter element.
REFER to: Fuel Filter Element - Diesel (310-01 Fuel Tank and Lines, Removal and Installation).
Test the system for normal operation.

PINPOINT TEST B : DTC P0089 - FUEL PRESSURE RELIEF VALVE OPEN

TEST CONDITIONS DETAILS/RESULTS/ACTIONS
B1: CHECK FOR AIR INGRESS INTO THE FUEL LINES
1
Check for air ingress into the fuel system.
REFER to: Fuel System (310-00 Fuel System - General Information, Diagnosis and Testing).

Are there signs of air ingress into the fuel system?
Yes
REPAIR the system as recommended in the fuel system diagnostic. CLEAR the DTCs. TEST the system for normal operation.
No
B2: CHECK THE FUEL RAIL PRESSURE SENSOR CIRCUIT
1
Using the wiring diagrams, CHECK the fuel rail pressure sensor circuit wiring harnesses and electrical connectors for electrical shorts or damage.

Is the fuel rail pressure sensor circuit shorted or damaged?
Yes
REPAIR the circuit as necessary. TEST the system for normal operation.
No
B3: CHECK THE OPERATION OF THE FUEL METERING VALVE
NOTE:
NOTE:This test requires the aid of another technician.
1
Connect the Ford approved diagnostic tool.
2
Ignition switch in position III.
3
Using the Ford approved diagnostic tool, DATALOGGER, set the parameters FRP, FRP_DSD, VSS, RPM, MFDES,SCV_DC, SCV_AMP.
4
Carry out a road test.
5
Select second gear.
6
Release the accelerator pedal and allow the engine speed to decrease to idle while the vehicle is moving with second gear engaged.
7
Rapidly apply full throttle until the engine speed reaches 4,000 RPM and then immediately release the accelerator pedal, allowing the engine speed to return to idle while the vehicle is moving with second gear engaged.
8
Repeat step 7 approximately four times consecutively.
9
Observe the recorded data from the tests.

Is the maximum value for the FRP parameter data approximately 500 bar?
Yes
This indicates that the fuel pressure relief valve has opened due to a concern with the fuel metering valve. INSTALL a new fuel metering valve. TEST the system for normal operation.
No
CLEAR the DTC and REPEAT the test. If the concern persists, INSTALL a new fuel metering valve. TEST the system for normal operation.

PINPOINT TEST C : DTC P1250 - FUEL METERING VALVE CONTROLLABILITY FAILURE

TEST CONDITIONS DETAILS/RESULTS/ACTIONS
C1: CHECK FOR AIR INGRESS INTO THE FUEL LINES
1
Check for air ingress into the fuel system.
REFER to: Fuel System (310-00 Fuel System - General Information, Diagnosis and Testing).

Are there signs of air ingress into the fuel system?
Yes
REPAIR the system as recommended in the fuel system diagnostic. CLEAR the DTCs. TEST the system for normal operation.
No
C2: CHECK THE FUEL RAIL PRESSURE SENSOR CIRCUIT
1
Using the wiring diagrams, CHECK the fuel rail pressure sensor circuit wiring harnesses and electrical connectors for electrical shorts or damage.

Is the fuel rail pressure sensor circuit shorted or damaged?
Yes
REPAIR the circuit as necessary. TEST the system for normal operation.
No
C3: CHECK THE FUEL METERING VALVE CIRCUIT
1
Using the wiring diagrams, CHECK the fuel metering valve circuit wiring harnesses and electrical connectors for electrical shorts or damage.

Is the fuel metering valve circuit shorted or damaged?
Yes
REPAIR the circuit as necessary. TEST the system for normal operation.
No
C4: CHECK THE OPERATION OF THE FUEL METERING VALVE
NOTE:
NOTE:This test requires the aid of another technician.
1
Connect the Ford approved diagnostic tool.
2
Ignition switch in position III.
3
Using the Ford approved diagnostic tool, DATALOGGER, set the parameters FRP, FRP_DSD, VSS, RPM, MFDES,SCV_DC, SCV_AMP.
4
Carry out a road test.
5
Select second gear.
6
Release the accelerator pedal and allow the engine speed to decrease to idle while the vehicle is moving with second gear engaged.
7
Rapidly apply full throttle until the engine speed reaches 4,000 RPM and then immediately release the accelerator pedal, allowing the engine speed to return to idle while the vehicle is moving with second gear engaged.
8
Repeat step 7 approximately four times consecutively.
9
Observe the recorded data from the tests.

Is the value for the FRP parameter data either staying constant or not changing with the FRP_DSD parameter data?
Yes
This indicates that the fuel metering valve is either stuck or not responding. INSTALL a new fuel metering valve. TEST the system for normal operation.
No
CLEAR the DTC and REPEAT the test. If the concern persists, INSTALL a new fuel metering valve. TEST the system for normal operation.

General Procedures > < Fuel Charging and Controls