Fuel Pressure Regulator: Service and Repair

REMOVE

CAUTION: DO NOT remove the four screws securing the pressure regulator to the fuel meter cover. The fuel pressure regulator includes a large spring under heavy compression which, if accidentally released. Disassembly might also result in a fuel leak between the diaphragm and the regulator container.






1. Negative battery terminal.
2. Relieve fuel system pressure.
3. Air cleaner assembly and extension (spacer).
4. Electrical connectors to fuel injectors (Squeeze plastic tabs and pull straight up).
5. Fuel meter cover attaching screws (1,2).
6. Fuel meter cover assembly (3).

NOTICE: DO NOT immerse the fuel meter cover (with pressure regulator) in cleaner, as damage to the regulator diaphragm could occur.

7. Fuel meter outlet gasket (5), cover gasket (4), and pressure regulator dust seal (6). Discard gaskets and seal.

Clean
^ Gasket sealing surfaces.

Install


1. New pressure regulator dust seal (6), fuel meter outlet passage gasket (5), and cover gasket (4).
2. Fuel meter cover assembly (3).
3. Fuel meter cover attaching screws (1, 2), coated with appropriate thread-locking compound.
- Install short screws next to injectors.

Tighten
^ Fuel meter cover attaching screws to 3.0 N.m (27 lb. in.)

4. Electrical connectors to fuel injectors.
5. Negative battery terminal.

Inspect
^ With engine "OFF", and ignition "ON", check for fuel leaks.

6. Air cleaner extension, and air cleaner assembly.