Fuel Rail: Service and Repair

Fuel Rail Assembly:

The names of component parts appear in the numbered list on the disassembled view.

Fuel Rail Identification:

An eight digit identification number is stamped on the side of the fuel rail. Refer to this number is servicing or part replacement is required.

CAUTION: To reduce the risk of fire and personal injury that may result from a fuel leak, always install injector O-rings in the proper position. If the upper and lower O-rings are different colors (black and brown), be sure to install the black O-ring in the upper position and the brown O-ring in the lower position on the injector. The O-rings are the same size but, are made of different materials.

Remove or Disconnect:
1. Disconnect negative battery cable
2. Relieve fuel system pressure
3. Remove fuel pipes
4. Disconnect vacuum line harness from fuel rail

Engine Fuel Pipes:

5. Disconnect main electrical harness connector at fuel rail
6. Remove fuel rail attaching bolts

Fuel Rail Removal And Installation:

7. Remove fuel rail assembly

Inspect:
The fuel injector lower O-ring uses a nylon collar, called the O-ring backup, to properly position the O-ring on the injector. Be sure to reinstall the O-ring backup, or the sealing O-ring may move on the injector when installing the fuel rail and result in a possible vacuum leak and driveability complaints will occur.


Install or Connect:
1. Install fuel rail assembly in intake manifold, tilt rail assembly to install injectors
2. Install fuel rail attaching bolts
Torque Value: 25 N-m (18 lb.ft.)
3. Attach engine fuel pipes to fuel rail
4. Connect fuel pipes
5. Connect main electrical harness connector at fuel rail
6. Connect vacuum line harness connector at fuel rail
7. Tighten fuel filler cap
8. Connect negative battery cable


Inspect:
Turn ignition switch to the "ON" position for two seconds, then turn to the "OFF" position for ten seconds. Again turn to the "ON" position and check for leaks.