Fuel Rail: Service and Repair

Removal
1. Perform Fuel Charging System, Pre-Service and Fuel Pressure Relief Procedures: Service and Repair

2. Remove upper intake manifold:

3. Remove spring lock coupling retainer clips from fuel inlet and return fittings.

4. Using Spring Lock Coupling Disconnect Tool D87L-9280-A (3/8 inch) or D87L-9280-B (1/2 inch) or equivalent, disconnect the inlet and outlet fuel lines from the fuel injection supply manifold.

5. Remove fuel pressure regulator bracket retaining bolt.

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

6. Carefully disengage fuel injection supply manifold from fuel injectors and remove fuel injection supply manifold.

7. Use a rocking, side-to-side motion while lifting to remove fuel injectors from cylinder head pockets.

Installation

CAUTION: When installing fuel Injection supply manifold, particular attention should be paid to proper 0-ring seating to make sure that no fuel leaks exist.

1. Push fuel injection supply manifold down to make sure all fuel injector 0-rings are fully seated in the fuel injection supply manifold cups and cylinder head pockets.

2. Install retaining bolts while holding fuel injection supply manifold. Tighten bolts to 8-11 Nm (71-97 lb.in.).

3. Install fuel pressure regulator bracket retaining bolt. Tighten to 20-30 Nm (15-22 lb.ft.).

4. Install inlet and outlet fuel line spring lock couplings.

5. Connect fuel charging wiring.

6. Install upper intake manifold:

7. Perform Fuel Charging System, Post-Service Procedures: Service and Repair