Removal Procedure
- Disconnect the negative battery cable.
- Relieve the fuel system pressure. Refer to the Fuel Pressure Relief .
- Remove the intake manifold plenum. Refer to Engine Mechanical.
- Disconnect the vacuum line to the regulator.
- Remove the snap ring (1) from the pressure regulator housing.
- Place a towel under the regulator to catch any fuel.
- Remove the pressure regulator (2) from the fuel socket by twisting back and forth while pulling the regulator from the socket.
- Remove the pressure regulator small O-ring (6), filter (5), large O-ring (4), and O-ring backup (3), and discard.
Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
Installation Procedure
- Lubricate the new pressure regulator O-rings (4) and (6) with clean engine oil and install on the regulator inlet as a complete assembly.
- Install the snap ring retainer (1) into the slot on the fuel regulator housing.
- Connect the vacuum line to the regulator.
- Install the intake manifold plenum. Refer to Engine Mechanical.
Important:
• Verify that the retainer is engaged in the slot in the pressure
regulator housing. Grasp and pull on the regulator (2) to ensure that it is
properly seated. • Turn ignition to ON for two seconds and then turn OFF for 10 seconds.
Once again turn the ignition to ON and check for fuel leaks.
