Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
 
Vehicle » Engine, Cooling and Exhaust » Engine » Fuel Filter » Technical Service Bulletins » Fuel System - Fuel Pressure Relief Valve Eliminated  
 
 
  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.

6. Install fuel pressure gauge special service tool 310-012 or equivalent.

7. Install fuel pump relay.

8. Cycle key and wait 3 seconds to re-pressurize the fuel system. Check for oaks before starting engine.

NOTE IT MAY TAKE MORE THAN ONE KEY CYCLE TO RE-PRESSURIZE THE FUEL SYSTEM.

9. Start and run engine to surge air from fuel system (air trapped in the fuel system may effect test results).

10. Perform normal diagnosti35 ann service repairs as needed.

11. After fuel system service is complete, relieve fuel system pressure using fuel pressure gauge relief valve.

12. Remove special service tools

13. Re-connect fuel system lines

14. 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.

15. 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 Tools Required Chart

OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 404000, 490000, 497000, 499000, 603300, 607000, 698298

  

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