Fuel Injector: Service and Repair

REMOVAL

1. Release fuel pressure from fuel system.

2. Remove upper intake and throttle body as an assembly from lower intake manifold.

Fuel Injector:

3. Carefully remove electrical harness connectors from individual injectors.

Fuel Injector Location:

4. Remove fuel rail and injectors from lower intake manifold.

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

CAUTION: Do not attempt to clean the injector pintle or metering orifice with tools or brushes.

INSTALLATION

Fuel Injector:

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

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

2. Install injectors into the fuel supply manifold using light, twisting, pushing motion.

3. Install fuel supply manifold to lower intake manifold.

4. Connect the fuel inlet and outlet lines at the fuel rail connections. Push in to connect. Connect fuel line retaining clips.

5. Install electrical harness connectors to injectors.

6. 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.

7. Install upper intake manifold and throttle body assembly to lower manifold making sure gasket remains in place.

8. Start engine and warm to operating temperature. Check for leaks.