Removal (3.1L & 3.4L)
1. Relieve fuel pressure. See FUEL PRESSURE RELIEF. Disconnect negative battery cable. Remove intake manifold plenum and gaskets. Disconnect pressure regulator vacuum hose. Remove fuel return line and "O" ring from pressure regulator. 2. Remove pressure regulator screws. Remove pressure regulator from fuel rail. Remove pressure regulator retainer and spacer assembly from fuel rail (if equipped). Remove fuel inlet "O" ring from pressure regulator. Remove and discard filter screen if dirty.
Installation
To install, reverse removal procedure. DO NOT reuse "O" ring. Lubricate NEW fuel inlet "O" ring with oil and install in regulator. Replace filter screen as necessary. Tighten screws to specification. See TORQUE SPECIFICATIONS.
Removal (3.5L & 3.8L)
Relieve fuel pressure. See FUEL PRESSURE RELIEF. Disconnect negative battery cable. On 3.5L, remove fuel injector sight shield. On all models, disconnect pressure regulator vacuum hose. Remove pressure regulator snap ring. Lift and twist pressure regulator from pressure regulator housing attached to fuel rail. Remove back-up "O" ring, large "O" ring, filter screen and small "O" ring from pressure regulator housing.
Installation
To install, reverse removal procedure. DO NOT reuse "O" rings. Lubricate NEW "O" rings with oil and install in regulator housing. Install snap ring.
Removal (4.0L & 4.6L)
Relieve fuel pressure. See FUEL PRESSURE RELIEF. Disconnect negative battery cable. Remove intake manifold top cover. Disconnect pressure regulator vacuum hose. Remove pressure regulator retaining ring. Lift and twist pressure regulator from fuel rail. Remove fuel inlet "O" ring from pressure regulator. Remove and discard filter screen if dirty.
Installation
To install, reverse removal procedure. DO NOT reuse "O" ring. Lubricate NEW fuel inlet "O" ring with oil and install in regulator. Replace filter screen as necessary. Tighten intake manifold cover nuts to specification. See TORQUE SPECIFICATIONS.
Saturday, December 4th, 2010 AT 7:31 PM
