FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Fuel Injector: Service and Repair

REMOVAL

1. Disconnect battery ground cable and secure it out of the way.

2. Remove fuel cap.

3. Release pressure from fuel system.

4. Remove upper intake manifold.

5. Remove fuel injection supply manifold assembly.

6. Remove fuel injector retaining clips.

Fuel Injector:






7. Carefully remove electrical harness connectors from individual injectors.

8. Grasping injector body, pull up gently while rocking injector from side to side.

Fuel Injector:






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

10. Inspect injector body, end cap and washer for signs of dirt and deterioration. Replace as required. If hat is missing, look for it in the intake manifold.

INSTALLATION

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

1. Replace and lubricate the two injector O-rings on each injector with clean engine oil.

2. Install fuel injectors. Use a light, twisting, pushing motion to install them.

3. Reconnect fuel injector retaining clips.

4. Install fuel injection supply manifold assembly.

5. Install electrical harness connectors to injectors.

6. Install upper intake manifold.

7. Install fuel cap at tank.

8. Connect battery ground cable.

9. Add engine coolant if required.

10. Turn key On/Off several times without starting engine to check for fuel leaks.

NOTE: Check all connections at fuel rails, push connect fittings, etc.

11. Start engine and warm to operating temperature. Check for coolant leaks if coolant was removed.