Fuel Pressure Regulator: Service and Repair

Fuel Pressure Regulator:

REMOVAL

NOTE: Fuel system pressure must be released prior to any service of fuel injection components.

CAUTION: The fuel system remains pressurized after engine has been shut off. Release pressure prior to opening system.

NOTE: Wrap fuel return tube connector with a shop towel to absorb any fuel released when tube is disconnected. Avoid disconnecting fuel fittings when engine is hot.

1. Disconnect negative battery cable.
2. Using tool no. 6182 or equivalent, disconnect fuel return line from regulator.
3. Disconnect vacuum hose from regulator.
4. Unscrew inlet line nut from regulator.
5. Remove nipple fitting from the return side of regulator.
6. Remove locknut and washer, remove regulator.

Fuel Line Disconnect Tool 6182:

Using Fuel Tube Disconnect Tool No. 6182:

INSTALLATION

1. Install regulator in bracket, place washer and nut on regulator and tighten nut.
2. Thread nipple fitting into regulator and tighten.
3. Screw inlet line nut onto regulator and tighten.
4. Push vacuum hose onto regulator nipple.
5. Install fuel return line.
6. Connect negative battery cable.
7. Use the DRB II to select the Automatic Shut Down (ASD) Fuel System Test to pressurize fuel system and check for leaks. Refer to Powertrain Management/Computers and Control Systems/Testing and Inspection/Procedures

CAUTION: Unless the test is stopped or the ignition switch is turned to the OFF position the fuel pump relay and the ASD relay will remain energized for 7 minutes by the ASD Fuel System Test.