Fuel Pressure Regulator: Service and Repair

COMPONENTS FOR REMOVAL AND INSTALLATION




REMOVAL
1. Disconnect vacuum sensing hose from fuel pressure regulator.
2. Disconnect fuel return pipe from fuel pressure regulator.
- Remove the union bolt and 2 gaskets, and disconnect the fuel pipe from the pressure regulator.

CAUTION:
- Put a shop rag under the pressure regulator.
- Slowly loosen the union bolt.




3. Remove fuel pressure regulator.
- Remove the 2 bolts and pressure regulator.
- Remove the O-ring from the pressure regulator.




INSTALLATION
1. Install fuel pressure regulator.
- Apply a light coat of gasoline to a new O-ring, and install it to the pressure regulator.
- Attach the pressure regulator to the delivery pipe.




- Check that the pressure regulator rotates smoothly.

NOTICE: If it does not rotate smoothly, the O-ring may be pinched, so remove the pressure regulator and do steps (b) and (c) again.




- Install the pressure regulator with the 2 bolts.

Torque: 8.8 N.m (90 kgf.cm, 78 in.lbf)




2. Connect fuel return pipe to fuel pressure regulator.
- Connect the fuel pipe to the pressure regulator with 2 new gaskets and the union bolt.

Torque: 27 N.m (280 kgf.cm, 20 ft.lbf)

3. Connect vacuum sensing hose to fuel pressure regulator.
4. Check for fuel leaks.