Focus L4-2.0L SOHC VIN P (2000)
Fuel Pressure Release: Technical Service Bulletins
Fuel System - Fuel Pressure Relief Valve Eliminated
Article No.
02-21-2
10/28/02
FUEL - FUEL PRESSURE RELIEF VALVE
DISCONTINUED - 2.0L ENGINE
FORD:
2000-2002 FOCUS
2001-2002 ESCORT ZX2, ESCAPE
MERCURY:
1999-2002 COUGAR
ISSUE
Vehicles equipped with the 2.0L 4V Zetec and the 2.0L SPI no longer have the Fuel Pressure Relief Valve (Schrader Valve).
ACTION
To relieve or manually check fuel pressures, refer to the following Service Procedures for details.
SERVICE PROCEDURE
Service Procedure For Relieving Fuel Pressure
1.
Remove the fuel pump relay in the engine compartment fuse box.
2.
Start the engine and allow idling until the engine stalls.
3.
After the engine stalls, crank the engine for approximately five seconds to ensure the fuel injection supply manifold pressure has been released.
4.
When fuel system service is complete, Install Fuel Pump Relay.
5.
Cycle key and wait 3 seconds to re-pressurize the fuel system. Check for leaks before starting engine.
NOTE
IT MAY TAKE MORE THAN ONE KEY CYCLE TO RE-PRESSURIZE THE FUEL SYSTEM.
6.
Start vehicle and check for leaks.
NOTE
IT IS POSSIBLE THAT A DTC MAY BE SET DUE TO THE PUMP RELAY BEING PULLED AND THE ENGINE STARTED AND RUN OUT
OF FUEL. IF DTC'S ARE SET, CLEAR ALL DTC'S BEFORE RETURNING VEHICLE TO THE CUSTOMER.
Service Procedure For Manually Checking Fuel Pressure With A Gauge.
1.
Remove the fuel pump relay in the engine compartment fuse box.
2.
Start the engine and allow idling until the engine stalls.
3.
After the engine stalls, crank the engine for approximately five seconds to make sure the fuel injection supply manifold pressure has been released.
4.
Disconnect fuel line at the fuel rail to chassis line pierce point.
a.
If the vehicle is equipped with Quick Release Coupling Push Connector at the fuel rail to fuel line pierce point, separate the coupling by
depressing the tabs and pulling on the fuel line.
b.
If the vehicle is equipped with a Spring Lock Coupling Connector using special tool 310-D00S or equivalent
5.
Install the Schrader Valve service tool adaptor listed in the chart in this article.
