Wrangler L6-4.0L VIN S (2000)
Fuel Rail: Service and Repair
REMOVAL
The fuel damper is not serviced separately.
WARNING: THE FUEL SYSTEM IS UNDER CONSTANT FUEL PRESSURE EVEN WITH ENGINE OFF. THIS PRESSURE MUST BE
RELEASED BEFORE SERVICING FUEL RAIL.
1. Remove fuel tank filler tube cap.
2. Perform Fuel System Pressure Release Procedure.
3. Disconnect negative battery cable from battery.
4. Remove air tube at top of throttle body. Note: Some engine/vehicles may require removal of air cleaner ducts at throttle body.
Removal/Install Fuel Injector Connector
5. Disconnect electrical connectors at all 6 fuel injectors. To remove connector. Push red colored slider away from injector (1) While pushing slider,
depress tab (2) and remove connector (3) from injector. The factory fuel injection wiring harness is numerically tagged (INJ 1, INJ 2, etc.) for
injector position identification. If harness is not tagged, note wiring location before removal.
6. Disconnect fuel supply line latch clip and fuel line at fuel rail. Refer to Quick-Connect Fittings.
7. Disconnect throttle cable at throttle body. Refer to Throttle Cable Removal/Installation.
8. Disconnect speed control cable at throttle body (if equipped).
9. Disconnect automatic transmission cable at throttle body (if equipped).
10. Remove cable routing bracket at intake manifold.
11. If equipped, remove wiring harnesses at injection rail studs by removing nuts.
12. Clean dirt/debris from each fuel injector at intake manifold.
