Removal Procedure
- Remove the engine sight shield. Refer to
Upper Intake Manifold Sight Shield Replacement
in Engine Mechanical-4.8L,
5.3L, 6.0L.
- Relieve the fuel system pressure. Refer to
Fuel Pressure Relief
.
- Disconnect the fuel pressure
regulator vacuum line.
- Clean any dirt from the fuel pressure regulator retainer and the
surrounding area.
- Remove the fuel pressure regulator retainer (8).
- Remove the fuel pressure regulator (9) from the fuel pressure
regulator housing.
Installation Procedure
- Install the backup ring (10)
on the fuel pressure regulator (9).
- Install the new large O-ring (11) on the fuel pressure
regulator.
- Install the regulator filter (12) on the fuel pressure
regulator.
- Install the new small O-ring (13) on the fuel pressure
regulator.
- Lubricate the fuel pressure regulator large O-ring and the small
O-ring with clean engine oil.
- Push the fuel pressure regulator into the regulator housing on
the fuel rail.
- Install a new fuel pressure regulator retainer (8).
- Connect the fuel pressure regulator vacuum line.
- Connect the negative battery cable.
- Tighten the fuel filler cap.
- Inspect for leaks.
11.1. | Turn ON the ignition for 2 seconds. |
11.2. | Turn OFF the ignition for 10 seconds. |
11.3. | Turn ON the ignition . |
11.4. | Inspect for fuel leaks. |
- Install the engine sight shield. Refer to
Upper Intake Manifold Sight Shield Replacement
in Engine Mechanical-4.8L,
5.3L, 6.0L.