Tool Required

J 34730-1A Fuel Pressure Gauge

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
3. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
4. Disconnect the spark plug wires from the left side of the distributor.
5. Disconnect the chassis fuel feed and return pipes (1) at the engine compartment fuel feed and return pipes.



6. Remove the injector fuel inlet and outlet pipe retainer nuts.
7. Remove the injector fuel inlet and the outlet pipe retainer.



8. Remove the rear fuel pipe bracket retaining bolt.



9. Pull straight up on the fuel pipes in order to remove the fuel pipes from the injector assembly.
10. Remove the O-ring seals from both ends of the fuel feed and return pipes.
11. Discard the O-ring seals.

1. Assemble the new O-rings into the inlet and outlet of the fuel injector assembly.
2. Apply a few drops of clean engine oil to the male tube ends.
3. Install the fuel feed and return pipes to the injector assembly.



4. Install the fuel pipe retainer and the attaching nuts.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

5. Install the rear fuel pipe bracket retaining bolt.

Tighten

1. Tighten the rear fuel pipe bracket bolt to 6 N·m (53 lb in).
2. Tighten the fuel pipe retainer nuts to 3 N·m (27 lb in).



6. Install the new O-ring seals on the engine compartment fuel feed and the return pipes.
7. Install the chassis fuel feed and return pipes (1) to the engine compartment fuel feed and return pipes.

Tighten
Tighten the fuel pipe fittings to 27 N·m (20 lb ft).

8. Connect the spark plug wires to the left side of the distributor.
9. Tighten the fuel filler cap.
10. Connect the negative battery cable.
11. Inspect for leaks.

11.1.

Turn ON the ignition for 2 seconds.

11.2.

Turn OFF the ignition for 10 seconds.

11.3.

Turn ON the ignition.

11.4.

Inspect for fuel leaks.

12. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .