Fuel Rail: Service and Repair
REMOVAL1. Release fuel pressure.
2. Disconnect the negative battery cable.
3. Remove air cleaner housing and inlet hose.
4. Remove engine cover.
Throttle Body:
5. Disconnect the Throttle Position Sensor.
6. Disconnect the Idle Air Control. (7) Disconnect the purge line.
8. Disconnect the throttle and speed control cables (if equipped).
Map Sensor:
9. Unlock and disconnect the MAP sensor.
10. Disconnect the vacuum lines.
11. Remove the EGR tube.
Intake Manifold Removed:
12. Remove the upper intake manifold.
Fuel Rail:
13. Fuel Rail, wiring harness and injectors.
Fuel Injector Location:
14. Injector and electrical connector.
Fuel Injector Wiring Harness:
15. If the injector connectors are not tagged with their cylinder number, tag them to identify the correct cylinder.
Fuel Rail Bolts Locations:
16. Remove the 4 mounting bolts from the fuel rail.
Fuel Line Disconnect Fitting:
17. Disconnect the fuel supply line from the fuel rail.
Fuel Rail Assembly:
18. Lift fuel rail straight up off of cylinder head.
Fuel Injector Clip:
19. Remove retaining clips from fuel injectors at fuel rail.
Fuel Injector And Clip:
20. Remove fuel injector from fuel rail.
INSTALLATION
Fuel Injector And Clip:
1. Inspect and replace damaged fuel injector O-rings.
2. Lightly lubricate the fuel injector O-rings with a couple drops of clean engine oil.
Fuel Injector O-ring:
3. Install retaining clips on fuel injectors.
Fuel Rail Locator Tabs:
4. Fuel injector locator flange on fuel rail.
Installing Fuel Injector:
5. Push injectors into fuel injector rail until clips are in the correct position.
Fuel Injector Clip:
6. Fuel injector installed into fuel rail in the correct position.
Fuel Injectors Installed:
7. Fuel rail with injectors installed.
Fuel Rail Bolts Locations:
8. Position fuel rail over cylinder heads, and push rail into place. Tighten fuel rail mounting bolts to 28 N.m (250 in. lbs.) torque.
Fuel Injector Wiring Harness:
9. Connect the electrical connectors to the fuel injectors and lock.
Fuel Line Disconnect Fitting:
10. Connect the fuel supply tube quick connect fitting to the fuel rail.
Intake Gaskets Removed:
11. Inspect the intake manifold gaskets.
Intake Gasket Installed:
12. Intake manifold gaskets installed.
Intake Manifold Removed:
13. Install intake manifold plenum.
14. Connect and lock the electrical for the MAP sensor (1).
Map Sensor:
15. Connect the vacuum lines (2).
Throttle Body:
16. Connect the electrical connector for Throttle Position Sensor (2), Idle Air Control Motor (3).
17. Connect the purge line (1).
18. Connect negative cable to battery.