Fuel Injector: Service and Repair

REMOVAL

1. Disconnect the negative battery cable.

2. Remove fuel filler cap and release the fuel tank pressure.

3. Relieve fuel system pressure, refer to Service and Repair / Fuel Pressure Relief Procedure. Fuel Pressure Release

4. Remove fuel injection supply manifold.

Fuel Injector:

5. Carefully remove connectors from fuel charging wiring to individual fuel injectors as required.

Fuel Injectors:

6. Grasping fuel injector body, pull up while gently rocking fuel injector from side-to-side.

7. Inspect fuel injector O-rings (two per fuel injector) for signs of deterioration. Replace as required.

Fuel Injector:

8. Inspect fuel injector end cap body and washer for signs of dirt and deterioration.

INSTALLATION

1. Lubricate new O rings with clean engine oil XO-10W30-QSP (ESE-M2C153-E) or equivalent.

CAUTION: Never use silicone grease. It will clog the injectors.

2. Install fuel injectors, using a light, twisting, pushing motion.

3. Install fuel injection supply manifold.

4. install connectors from fuel charging wiring to fuel injectors.

5. Install fuel filler cap.

6. Connect negative battery cable.

7. Turn the ignition switch ON/OFF several times to pressurize the fuel system, then check for leaks.