Removal

WARNING:
FUEL UNDER PRESSURE
Fuel in the fuel system remains under HIGH PRESSURE for long periods of time, even when the engine is not RUNNING. To avoid injury or fire, release the fuel pressure from the fuel system before disconnecting any fuel line.

FIRE HAZARD
Do not smoke or carry lighted tobacco or an open flame of any type when working on or near any fuel related components. Highly flammable mixtures are always present and may be ignited, resulting in possible personal injury

REMOVAL
1. Relieve fuel system pressure. Refer to Powertrain Management.
2. Disconnect battery ground cable.
3. Remove upper intake manifold.
4. Disconnect fuel supply and return lines from fuel injection supply manifold. Refer to Powertrain Management.
5. Disconnect engine control sensor wiring from fuel injectors and wiring retainers. Position engine control sensor wiring out of the way.
6. Disconnect vacuum supply line from fuel pressure regulator.

CAUTION: Do not loosen or bend intake manifold runner control actuator cable retainer bracket. Bracket alignment is critical and potential damage to the intake manifold runner control actuator (IMRC) may occur.

NOTE: Use care when removing actuator cable from the IMRC Lever.

7. Disconnect the intake manifold runner actuator control cable from the lower intake manifold (IMRC) lever and bracket.
8. Disconnect the ignition wires from the LH cylinder head (cylinder numbers 4, 5 and 6). Position ignition wires out of the way.
9. If required, remove fuel injection supply manifold and fuel injectors from lower intake manifold (IMRC).





10. Remove lower intake manifold to cylinder head retaining bolts in sequence shown.

CAUTION: Do not loosen or damage intake manifold runner control actuator cable retainer bracket.

11. Remove lower intake manifold (IMRC) from cylinder heads.
12. Remove intake manifold gaskets from cylinder heads and discard intake manifold gaskets.