Mechanics

GMC ENVOY CAMSHAFT PROBLEM

2004 GMC Envoy • 100,000 miles

How do you change valve cover gasket on a 2004 six cylinder envoy
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Guest
December 10, 2012.




Camshaft Cover Replacement

Removal Procedure

Remove the intake manifold. See: Intake Manifold Service and Repair

Remove the A/C line at the oil level indicator tube bracket nut.

Remove the A/C bracket bolt from the engine lift hook.
Position the A/C line out of the way.

Remove the engine lift bracket.
Disconnect the ignition control module electrical connectors.
Loosen the ignition control module bolts.

Remove the ignition control module.

Disconnect the engine electrical harness housing from the camshaft cover (1) taking care not to damage the clips that hold the housing in place.
Disconnect the fuel injection harness electrical connector.

Loosen and remove the camshaft cover bolts.

Remove the camshaft cover.
Clean and inspect the camshaft cover.

Installation Procedure

Install a new camshaft cover seal.
Install new rubber ignition control module seals.

NOTICE: Refer to Fastener Notice in Service Precautions. See: Service Precautions

Install the camshaft cover and secure with the cam cover bolts.

Tighten
Tighten the camshaft cover bolts to 10 Nm (89 lb in).

Install the ignition control modules and secure the modules with bolts.

Tighten
Tighten the ignition coil bolts to 10 Nm (89 lb in).

Connect the ignition control module electrical connectors.
Install the fuel injector electrical connectors.

Install the engine electrical harness housing (1).

Install the A/C line bracket to the oil level indicator tube stud and secure the bracket with the nut.

Tighten
Tighten the A/C line bracket nut to 7 Nm (62 lb in).

Install the engine lift bracket and secure the lift hook with the bolts.

Tighten
Tighten the lift bracket bolts to 50 Nm (37 lb ft).

Install the A/C line bracket to the engine lift bracket and secure the A/C bracket with the bolt.

Tighten
Tighten the A/C bracket bolt to 10 Nm (89 lb in).

Install the intake manifold. See: Intake Manifold Service and Repair

ASEMaster6371
Dec 10, 2012.


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