Valve Rocker Arm Cover Replacement (Left Front)

Removal Procedure





1. Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Service Precautions.
2. Remove the engine lift bracket from the exhaust manifold studs.
3. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
4. Remove the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement.
5. Disconnect the left spark plug wires. Refer to Spark Plug Wire Harness Replacement in Powertrain Management.
6. Remove the left spark plug wire cover from the left valve rocker arm cover. Refer to Spark Plug Wire Harness Replacement in Powertrain Management.
7. Remove the left valve rocker arm cover bolts.

Important: If the valve rocker arm cover adheres to the cylinder head, remove the valve rocker arm cover by bumping the end of the valve rocker arm cover with palm of hand or with a soft rubber mallet.





8. Remove the left valve rocker arm cover.
9. Remove the left valve rocker arm cover gasket.
10. Clean the sealing surface on the cylinder head and the valve rocker arm cover with a degreaser.
11. Clean the valve rocker arm cover bolts of all thread locking adhesive.

Installation Procedure





1. Install the new valve rocker arm cover gasket. Make sure that valve rocker arm cover gasket is seated properly in the valve rocker arm cover groove.
2. Install the left valve rocker arm cover.
3. Apply thread lock compound GM P/N 12345493 or equivalent, to the valve rocker arm cover bolt threads.

Notice: Refer to Fastener Notice in Service Precautions.

4. Install the left valve rocker arm cover bolts.
Tighten the left valve rocker arm cover bolts to 10 Nm (89 inch lbs.).
2. Install the left spark plug wire cover to the left valve rocker arm cover. Refer to Spark Plug Wire Harness Replacement in Powertrain Management.
6. Connect the left spark plug wires. Refer to Spark Plug Wire Harness Replacement in Powertrain Management.
7. Install the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement.
8. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.





9. Install the engine lift bracket to the exhaust manifold studs.
Tighten the engine lift bracket bolt and nut to 30 Nm (22 ft. lbs.).
10. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Service Precautions.
11. Inspect for proper fluid levels.
12. Inspect for oil leaks.