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Diagnosis and Testing|Removal and Installation > < Fuel Charging and Controls
Fuel Charging and Controls - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4) - Fuel Charging and Controls Mondeo 2007.5 (02/2007-)
Diagnosis and Testing

Ford approved diagnostic tool

Inspection and Verification

  1. Verify the customer concern.
  1. Visually inspect for obvious signs of mechanical or electrical damage.

Visual Inspection Chart

Mechanical Electrical
  • Fuel leak(s)
  • Vacuum line(s)
  • Gasket(s)
  • Seal(s)
  • Fuel injector(s)
  • Throttle body
  • Fuel rail
  • Fuel supply line
  • Wiring harness
  • Electrical connector(s)
  • Throttle body
  • Fuel injector(s)
  • Powertrain control module (PCM)
  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. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.

Symptom Chart

Symptom Possible Sources Action
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 - Passive (419-01B Anti-Theft - Passive, Diagnosis and Testing).
*
Starting system.
*
REFER to: Starting System (303-06, Diagnosis and Testing).
*
Ignition switch.
*
REFER to the Wiring Diagrams.
*
Powertrain control module (PCM).
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
Engine cranks but does not start
*
Inertia fuel shutoff (IFS) switch.
*
RESET the IFS switch.
*
Low fuel system pressure.
*
Check the fuel system pressure.
REFER to: Fuel System Pressure Check - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4) (310-00 Fuel System - General Information, General Procedures).
*
Fuel lines damaged or blocked.
*
INSPECT the fuel lines. INSTALL new components as necessary. TEST the system for normal operation.
*
Fuel filter blocked.
*
INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
Fuel pump and sender unit.
*
REFER to: Fuel Pump and Sender Unit - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
Crankshaft position (CKP) sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Camshaft position (CMP) sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
PCM.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Fuel rail pressure (FRP) sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Fuel injectors.
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
Incorrect valve timing.
*
CHECK the valve timing.
*
Low cylinder compression.
*
TEST the cylinder compression.
Poor starting
*
Low fuel system pressure.
*
Check the fuel system pressure.
REFER to: Fuel System Pressure Check - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4) (310-00 Fuel System - General Information, General Procedures).
*
Fuel system leak.
*
CHECK the system for fuel leak(s). REPAIR the system as necessary.
*
Fuel system restriction.
*
INSPECT the fuel system. INSTALL new components as necessary. TEST the system for normal operation.
*
Fuel filter blocked.
*
INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element.
*
Incorrect engine oil.
*
INSTALL a new engine oil filter and engine oil.
*
Incorrect power steering fluid.
*
DRAIN and REFILL the power steering system with the correct fluid.
REFER to: Power Steering System Bleeding (211-00 Steering System - General Information, General Procedures) /
Power Steering System Flushing (211-00 Steering System - General Information, General Procedures) /
Power Steering System Filling (211-00 Steering System - General Information, General Procedures).
*
CKP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Engine coolant temperature (ECT) sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Fuel injector(s).
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
FRP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Catalytic converter blocked.
*
REMOVE and visually INSPECT the catalytic converter as necessary.
REFER to: Catalytic Converter (309-00B Exhaust System - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4), Removal and Installation).
*
Low cylinder compression.
*
TEST the engine cylinder compression.
Engine starts but immediately stops
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element.
*
CKP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
CMP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
PCM.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Low fuel system pressure.
*
Check the fuel system pressure.
REFER to: Fuel System Pressure Check - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4) (310-00 Fuel System - General Information, General Procedures).
*
Fuel system restriction.
*
INSPECT the fuel system. INSTALL new components as necessary. TEST the system for normal operation.
*
Fuel filter blocked.
*
INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
Poor idling
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odors from the fuel tank.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean gasoline. INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
INSTALL a new fuel rail. REFER to: (303-04B Fuel Charging and Controls - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Fuel Rail - 2.0L Duratec-HE (MI4) (Removal and Installation),
Fuel Rail - 2.3L Duratec-HE (MI4) (Removal and Installation).
*
Low fuel system pressure.
*
Check the fuel system pressure.
REFER to: Fuel System Pressure Check - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4) (310-00 Fuel System - General Information, General Procedures).
*
Fuel filter blocked.
*
INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
EGR valve sticking open.
*
REFER to: (303-08B Engine Emission Control - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Engine Emission Control (Diagnosis and Testing),
Engine Emission Control (Diagnosis and Testing).
*
Fuel injectors.
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
CKP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Knock sensor (KS).
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
FRP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
Engine stumbling
*
Engine ignition.
*
Carry out an ignition system diagnosis using the Ford approved diagnostic tool.
*
Fuel injectors.
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
Low fuel system pressure.
*
Check the fuel system pressure.
REFER to: Fuel System Pressure Check - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4) (310-00 Fuel System - General Information, General Procedures).
*
FRP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
EGR valve sticking open.
*
REFER to: (303-08B Engine Emission Control - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Engine Emission Control (Diagnosis and Testing),
Engine Emission Control (Diagnosis and Testing).
Engine lacks power
*
Engine ignition.
*
Carry out an ignition system diagnosis using the Ford approved diagnostic tool.
*
Brakes binding.
*
CHECK the braking system.
REFER to: Anti-Lock Control (206-09A Anti-Lock Control, 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.
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element as necessary.
*
Low fuel system pressure.
*
Check the fuel system pressure.
REFER to: Fuel System Pressure Check - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4) (310-00 Fuel System - General Information, General Procedures).
*
Kinked or restricted fuel lines.
*
INSPECT the fuel lines. INSTALL new components as necessary. TEST the system for normal operation.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odors from the fuel tank.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean gasoline. INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
INSTALL a new fuel rail. REFER to: (303-04B Fuel Charging and Controls - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Fuel Rail - 2.0L Duratec-HE (MI4) (Removal and Installation),
Fuel Rail - 2.3L Duratec-HE (MI4) (Removal and Installation).
*
Fuel filter blocked.
*
INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
EGR valve sticking open.
*
REFER to: (303-08B Engine Emission Control - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Engine Emission Control (Diagnosis and Testing),
Engine Emission Control (Diagnosis and Testing).
*
Vehicle speed sensor (VSS).
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
ECT sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Fuel injectors.
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
FRP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in 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 (309-00B Exhaust System - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4), Removal and Installation).
Black smoke at idle
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element as necessary.
*
Fuel injectors.
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
ECT sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
FRP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in 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 (309-00B Exhaust System - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4), Removal and Installation).
*
Incorrect valve timing.
*
CHECK the valve timing.
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 odors from the fuel tank.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean gasoline. INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
INSTALL a new fuel rail. REFER to: (303-04B Fuel Charging and Controls - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Fuel Rail - 2.0L Duratec-HE (MI4) (Removal and Installation),
Fuel Rail - 2.3L Duratec-HE (MI4) (Removal and Installation).
*
EGR valve sticking open.
*
REFER to: (303-08B Engine Emission Control - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Engine Emission Control (Diagnosis and Testing),
Engine Emission Control (Diagnosis and Testing).
*
CKP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
KS.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Fuel injectors.
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
FRP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in 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 (309-00B Exhaust System - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4), Removal and Installation).
Black smoke at cruising speeds
*
Air cleaner element blocked.
*
INSTALL a new air cleaner element.
*
EGR valve sticking open.
*
REFER to: (303-08B Engine Emission Control - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Engine Emission Control (Diagnosis and Testing),
Engine Emission Control (Diagnosis and Testing).
*
ECT sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Fuel injectors.
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
FRP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in 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 (309-00B Exhaust System - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4), Removal and Installation).
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 odors from the fuel tank.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean gasoline. INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
INSTALL a new fuel rail. REFER to: (303-04B Fuel Charging and Controls - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Fuel Rail - 2.0L Duratec-HE (MI4) (Removal and Installation),
Fuel Rail - 2.3L Duratec-HE (MI4) (Removal and Installation).
*
Positive crankcase ventilation (PCV) system.
*
INSPECT for visible signs of damage or blockage. CLEAN, REPAIR or INSTALL new parts as necessary.
*
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 (303-01A Engine - 1.6L Duratec-16V Ti-VCT (Sigma), Removal and Installation),
Cylinder Head (303-01B Engine - 2.0L Duratec-HE (MI4), Removal and Installation).
White smoke
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odors from the fuel tank.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean gasoline. INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
INSTALL a new fuel rail. REFER to: (303-04B Fuel Charging and Controls - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Fuel Rail - 2.0L Duratec-HE (MI4) (Removal and Installation),
Fuel Rail - 2.3L Duratec-HE (MI4) (Removal and Installation).
*
Coolant in the combustion chamber.
*
CARRY OUT a cooling system pressure test.
REFER to: Engine Cooling (303-03B Engine Cooling - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4), 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 (303-01A Engine - 1.6L Duratec-16V Ti-VCT (Sigma), Removal and Installation),
Cylinder Head (303-01B Engine - 2.0L Duratec-HE (MI4), Removal and Installation).
Engine misfire
*
Engine ignition.
*
Carry out an ignition system diagnosis using the Ford approved diagnostic tool.
*
Incorrect or contaminated fuel.
*
CHECK for signs of contamination such as strange odors from the fuel tank.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean gasoline. INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
INSTALL a new fuel rail. REFER to: (303-04B Fuel Charging and Controls - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Fuel Rail - 2.0L Duratec-HE (MI4) (Removal and Installation),
Fuel Rail - 2.3L Duratec-HE (MI4) (Removal and Installation).
*
Low fuel system pressure.
*
Check the fuel system pressure.
REFER to: Fuel System Pressure Check - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4) (310-00 Fuel System - General Information, General Procedures).
*
EGR valve sticking open.
*
REFER to: (303-08B Engine Emission Control - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Engine Emission Control (Diagnosis and Testing),
Engine Emission Control (Diagnosis and Testing).
*
Engine operating temperature too high.
*
REFER to: Engine Cooling (303-03B Engine Cooling - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4), Diagnosis and Testing).
*
ECT sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
CKP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
CMP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
KS.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Fuel injectors.
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
FRP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Low cylinder compression.
*
CHECK the engine compression.
*
Worn or damaged valve(s), tappet(s) or camshaft(s).
*
REMOVE the cylinder head. INSPECT the cylinder head, valves, tappets and camshafts for signs of wear or damage. REFER to:
Cylinder Head (303-01A Engine - 1.6L Duratec-16V Ti-VCT (Sigma), Removal and Installation),
Cylinder Head (303-01B Engine - 2.0L Duratec-HE (MI4), Removal and Installation).
*
Damaged cylinder head gasket.
*
REMOVE the cylinder head. INSPECT the cylinder head gasket and cylinder bores for wear or damage. REFER to:
Cylinder Head (303-01A Engine - 1.6L Duratec-16V Ti-VCT (Sigma), Removal and Installation),
Cylinder Head (303-01B Engine - 2.0L Duratec-HE (MI4), Removal and Installation).
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 odors from the fuel tank.
*
If contaminated fuel is found, DRAIN the complete fuel system. FLUSH the fuel system through with clean gasoline. INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
INSTALL a new fuel rail. REFER to: (303-04B Fuel Charging and Controls - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Fuel Rail - 2.0L Duratec-HE (MI4) (Removal and Installation),
Fuel Rail - 2.3L Duratec-HE (MI4) (Removal and Installation).
*
KS.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
CKP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Fuel injector(s).
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
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 (303-01A Engine - 1.6L Duratec-16V Ti-VCT (Sigma), Removal and Installation),
Cylinder Head (303-01B Engine - 2.0L Duratec-HE (MI4), Removal and Installation).
*
Worn or damaged oil pump.
*
Worn or damaged timing chain or sprocket.
*
Major mechanical engine failure.
*
INSPECT the engine components.
Engine knock during acceleration
*
KS.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
Fuel injectors.
*
INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
*
Major mechanical engine failure.
*
REFER to:
Engine (303-01B Engine - 2.0L Duratec-HE (MI4), Diagnosis and Testing),
Engine (303-01C Engine - 2.3L Duratec-HE (MI4), Diagnosis and Testing).
NOTE:
NOTE:Before proceeding with any of the actions in relation to the possible sources for excessive fuel consumption, a fuel consumption test located in the toolbox menu of the Ford approved diagnostic tool must be carried out.
Excessive fuel consumption
*
Brakes binding.
*
CHECK the braking system.
REFER to: Anti-Lock Control (206-09A Anti-Lock Control, 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.
*
Air cleaner element blocked.
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INSTALL a new air cleaner element.
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Fuel system leak(s).
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CHECK the system for fuel leak(s). REPAIR or INSTALL new parts as necessary.
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Fuel filter blocked.
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INSTALL a new fuel filter.
REFER to: Fuel Filter - 1.6L Duratec-16V Ti-VCT (Sigma)/2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4)/2.5L Duratec (VI5) (310-01 Fuel Tank and Lines, Removal and Installation).
*
Incorrect engine oil.
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INSTALL a new oil filter and engine oil.
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Generator.
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REFER to the Ford approved diagnostic tool.
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EGR valve sticking open.
*
REFER to: (303-08B Engine Emission Control - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4))
Engine Emission Control (Diagnosis and Testing),
Engine Emission Control (Diagnosis and Testing).
*
Slipping clutch (if equipped).
*
REFER to: (308-01D Clutch - Vehicles With: 6-Speed Manual Transmission (M66))
Clutch (Diagnosis and Testing),
Clutch (Diagnosis and Testing),
Clutch (Diagnosis and Testing).
*
ECT sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
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Fuel injectors.
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INSPECT the fuel injectors. CLEAN the fuel injectors or INSTALL a new set of fuel injectors as required only after the checks have been carried out.
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PCM calibration.
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Using the Ford approved diagnostic tool, CHECK for the availability of a calibration update.
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Incorrect valve timing.
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CHECK the valve timing.
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Low cylinder compression.
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CHECK the engine compression.
Engine cuts out during hard acceleration
*
CMP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
CKP sensor.
*
Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
*
FRP sensor.
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Carry out a full engine diagnosis using the guided diagnostic menu in the Ford approved diagnostic tool.
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Low fuel system pressure.
*
Check the fuel system pressure.
REFER to: Fuel System Pressure Check - 2.0L Duratec-HE (MI4)/2.3L Duratec-HE (MI4) (310-00 Fuel System - General Information, General Procedures).

Diagnosis and Testing|Removal and Installation > < Fuel Charging and Controls