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.
5. Disconnect vacuum line from 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.
8. Disconnect fuel charging wiring from fuel injectors.
9. Remove four fuel injection supply manifold retaining bolts (two on each side).
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 fuel injectors to remove fuel injectors from intake 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 pockets.
CAUTION: When installing fuel injection supply manifold, particular attention should be paid to proper O-ring seating to make sure that no fuel leaks exist.
2. Install retaining bolts while holding fuel injection supply manifold down. Tighten retaining bolts to 8-12 Nm (71-106 lb in).
3. Install inlet and outlet fuel lines spring lock couplings.
4. Connect vacuum line to fuel pressure regulator.
5. Connect fuel charging wiring to fuel injectors.
6. Install air cleaner outlet tube.
7. Perform Post-Service Procedures. Service and Repair