Fuel Pressure Regulator: Service and Repair

Components:

COMPONENTS FOR REMOVAL AND INSTALLATION

FUEL PRESSURE REGULATOR REMOVAL

Vacuum Sensing Hose Disconnection:

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 return pipe from the pressure regulator.

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

3. Remove fuel pressure regulator.

Fuel Pressure Regulator Mounting Bolts:

(a) Remove the 2 bolts, and pull out the pressure regulator.
(b) Remove the O-ring from the pressure regulator.

FUEL PRESSURE REGULATOR INSTALLATION

1. Install fuel pressure regulator.

O-Ring Installation:

(a) Apply a light coat of gasoline to a new O-ring, and install it to the pressure regulator.
(b) Attach the pressure regulator to the delivery pipe.

Fuel Pressure Regulator Installation:

(c) 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) above again.

Fuel Pressure Regulator Mounting Bolts:

(d) 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.
- Install the return pipe 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.