Pressure Regulator Assembly

Remove or Disconnect
1. Relieve fuel system pressure.
* Refer to "Fuel System Pressure Relief Procedure".
2. Disconnect negative battery cable.
3. Remove vacuum hose from regulator.
* Refer to CAUTION statement.
4. Fuel return pipe clamp.
5. Fuel return pipe and O-ring from regulator.
* Discard O-ring.
6. Pressure regulator bracket attaching screw.
7. Pressure regulator assembly and O-ring.
* Discard O-ring.

Install or Connect
1. Lubricate new pressure regulator O-ring with clean engine oil, then install on pressure regulator.
2. Pressure regulator assembly onto manifold.
3. Pressure regulator bracket attaching screw coated with Loctite 262 or equivalent.

* Tighten pressure regulator bracket attaching screw to 3.5 N-m (31 lbs.in.).
4. Vacuum hose to regulator.
5. Lubricate new fuel return pipe O-ring with clean engine oil, then install on end of pipe.
6. Fuel return pipe to pressure regulator.
* Tighten fuel return pipe attaching nut to 30 N-m (22 lbs.in.).
7. Fuel return pipe clamp attaching nut to lower manifold assembly.
8. Tighten fuel filler cap.
9. Negative battery terminal. Turn ignition switch to the "ON" position for two seconds, then turn to the "OFF" position for ten seconds. Again, turn to the "ON" position, and check for fuel leaks.