Valve Rocker Arm Cover Replacement - Upper Right

Valve Rocker Arm Cover Replacement - Upper Right
Removal Procedure





1. Remove the air cleaner outlet duct.

Important: Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damaged. Loosen the hose by twisting.

2. Remove the exhaust gas recirculation (EGR) cooler tube.
3. Remove the heater outlet hose bolt from the bracket.
4. Position the heater outlet hose out of the way.





5. Remove the wiring harness retainer from the bracket.
6. Remove the oil level indicator tube bolt.
7. Remove the oil level indicator tube bracket bolts.
8. Remove the bracket.
9. Remove the positive crankcase ventilation (PCV) hose/pipe.





10. Prior to removing the fuel injector pipes, use compressed air to blow any debris from between the injector line and fittings. Wipe the fittings clean of debris.
11. Spray lithium grease, GM P/N 12346293 or equivalent, between the fuel injector line and fittings to assist in containing any debris during removal.

Notice: DO NOT use compressed air to clean debris from the fuel injector inlet after the fuel line is removed. Using compressed air can allow debris to enter the fuel injector inlet and damage the fuel injector.

12. Remove the right fuel injector pipes.





13. Remove the upper valve rocker arm cover bolts.
14. Remove the upper valve rocker arm cover.
15. Remove the upper valve rocker arm cover gasket.
16. Inspect the upper valve rocker arm cover gasket for damage, replace if necessary. Otherwise reuse the old gasket.
17. If required, clean and inspect the upper valve rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection - Upper.

Installation Procedure





1. Install the upper valve rocker arm cover gasket.
2. Install the upper valve rocker arm cover.
3. Install the upper valve rocker arm cover bolts.





Notice: Refer to Fastener Notice in Service Precautions.

4. Tighten the upper valve rocker arm cover bolts in the sequence shown.
Tighten the bolts to 8 Nm (71 inch lbs.).





Notice: Ensure proper torquing of the fuel injector line. An under-torqued fuel injector line will not seal properly and an over-torqued fuel injector line may damage the fuel injector fitting. An improperly sealed or damaged fuel injector line or fuel injector fitting will cause a fuel leak.

5. Install the fuel injector pipes.
Tighten the pipes to 41 Nm (30 ft. lbs.).
6. After installing the fuel injector pipes, clean the injector pipes and apply sealant GM P/N 97720043, at the fittings to prevent moisture and debris from collecting between the line and fitting.
7. Install the PCV hose/pipe.
Tighten the bolts to 21 Nm (15 ft. lbs.).
8. Position the heater outlet hose.
9. Install the heater hose bracket bolt to the bracket.
Tighten the bolt to 21 Nm (15 ft. lbs.).
10. Install the EGR cooler tube.





11. Install the bracket.
12. Install the oil level indicator tube bracket bolts.
Tighten the bolts to 21 Nm (15 ft. lbs.).
13. Install the oil level indicator tube bolt.
Tighten the bolt to 21 Nm (15 ft. lbs.).
14. Install the wiring harness retainer to the bracket.





Important: Lubricate the end of the duct prior to installation.

15. Install the charged air cooler outlet duct to the intake.
16. Tighten the charged air cooler outlet duct to the intake hose clamp.
Tighten the clamp to 6 Nm (53 inch lbs.).
17. Install the air cleaner outlet duct.