Fuel Rail: Service and Repair

REMOVAL
1. Observe fuel pressure release procedures.
2. Remove engine intake air resonators.
3. Disconnect fuel charging wiring from fuel injectors and position fuel charging wiring out of way.
4. Disconnect vacuum line at fuel pressure regulator.
5. Remove fuel line coupling retainer clip from fuel supply and return fittings.
6. Using Spring Lock Coupling Disconnect Tool D87L-9280-A (3/8 inch) or D87L-9280-B (1/2 inch) or equivalent, disconnect the fuel supply and return hoses from the fuel injection supply manifold.
7. Disconnect fuel supply and return hoses from retaining bracket on intake manifold.
8. Remove fuel injection supply manifold retaining bolts.

NOTE: It may be easier to remove fuel injectors with the fuel injection supply manifold as an assembly.

9. Carefully disengage fuel injection supply manifold with fuel injectors and remove fuel injection supply manifold.
10. Use light, twisting motion while removing fuel injectors and clip from fuel injection supply manifold.
11. Remove fuel injector clip from fuel injector.

INSTALLATION

1. Install fuel injectors into fuel injection supply manifold.
2. Push fuel injection supply manifold down to make sure all fuel injector O-rings are fully seated in the fuel injection supply manifold cups and lower intake manifold.
3. Install bolts while holding fuel injection supply manifold down. Tighten bolts to 8-12 N.m (71-106 lb-in).
4. Connect the fuel supply and return hoses to the fuel injection supply manifold at the connectors. Install retaining clips over the connectors securely.
5. Install fuel supply and return hoses to bracket located on the intake manifold. Tighten retaining screw securely.
6. Connect vacuum line to fuel pressure regulator.
7. Connect fuel charging wiring to fuel injectors.
8. Install engine intake air resonators.
9. Observe fuel pressure release/post-service procedures.