Fuel Rail: Service and Repair
REMOVAL1. Remove fuel tank cap and release pressure from the fuel system by cranking the engine for a minimum of 15 seconds with the electrical connector at the Inertia Switch disconnected, or by using a fuel pressure gauge.
2. Remove the spring lock coupling.
3. Disconnect the fuel supply and return lines.
4. Disconnect wiring harness from the injectors.
5. Remove upper intake manifold as outlined in this section.
6. Remove two fuel injector manifold retaining bolts.
7. Carefully disengage manifold from fuel injectors.
8. Disconnect vacuum line from fuel pressure regulator valve and remove manifold.
INSTALLATION
NOTE: When installing fuel rail assembly with new or used injectors pay particular attention to proper O-ring seating to ensure that no leaks exist.
1. Push fuel rail down to ensure all injector O-rings are fully seated in the fuel rail cups and intake manifold.
2. Install retaining bolts while holding the fuel rail down. Tighten bolts to 15-22 lb. in. (20-30 N-m).
3. Install spring lock coupling.
4. With injector wiring disconnected, turn ignition to the ON position to allow the fuel pump to pressurize the system.
5. Check for fuel leaks using a clean towel.
6. Connect fuel injector wiring harness.
7. Run vehicle at idle for two minutes and check for leaks.