Fuel Rail: Service and Repair
REMOVAL1. Disconnect battery ground cable.
NOTE: When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the Powertrain Control Module (PCM) relearns its adaptive strategy. The vehicle may need to be driven 10 miles or more to relearn the strategy.
2. Remove fuel tank filler cap and release fuel tank pressure.
3. Perform fuel pressure release procedure.
4. Remove air cleaner outlet tube from throttle body.
5. Disconnect vacuum line at fuel pressure regulator.
6. Remove spring lock coupling retainer clip from fuel inlet and return fittings.
7. 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 lines from the fuel injection supply manifold.
NOTE: The following items should be noted when service is required:
- Use specified tool or equivalent.
- Inspect for missing or damaged Orings.
- Use the specified brown, fuel-resistant O-rings.
- Lubricate the O-ring with clean engine oil.
- Make sure that the fitting is locked.
8. Disconnect fuel charging wiring from fuel injectors.
9. Remove four fuel injection supply manifold retaining bolts.
10. Carefully disengage fuel injection supply manifold from fuel injectors and remove fuel injection supply manifold.
NOTE: It may be easier to remove fuel injectors with the fuel injection supply manifold as an assembly.
11. Use a rocking, side-to-side motion while lifting to remove fuel injectors from fuel injection supply manifold.
INSTALLATION
1. 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 intake manifold.
CAUTION: When installing fuel injection supply manifold make sure that the fuel injector O-rings are properly seated so that there are not any fuel leaks.
2. Install retaining bolts while holding down fuel injection supply manifold. Tighten retaining bolts to 8-12 Nm (71-106 lb in).
3. Install spring lock coupling.
4. Connect vacuum line to fuel pressure regulator.
5. Connect fuel charging wiring to fuel injectors.
6. Install air cleaner outlet tube. Tighten engine air cleaner tube clamps to 2.5-3.2 Nm (22-28 lb in).
7. Perform Post-Service Procedures. Service and Repair