Valve Rocker Arm Cover Replacement - Upper Left Side
Valve Rocker Arm Cover Replacement - Upper Left Side
Removal Procedure
1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement (Service and Repair) .
2. Drain the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) (Service and Repair)Cooling System Draining and Filling (Static Fill) (Service and Repair) .
3. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (w/Single Battery) Battery Negative Cable Disconnection and Connection (w/Auxiliary Battery) Battery Negative Cable Disconnection and Connection (w/Dual Batteries) .
Important: After removing the charged air cooler duct, cover the turbocharger opening with tape in order to prevent entry of objects.
4. Remove the charged air cooler inlet duct. Refer to Charge Air Cooler Inlet Pipe Replacement .
5. Remove the battery cable to generator nut.
6. If equipped, remove the battery cable to the auxiliary generator.
7. Remove the battery cable harness clip from the bracket.
8. Remove the battery cable junction block bolt (1) from the power steering pump.
9. Move and secure the battery cables out of the way.
10. Disconnect the fuel lines. Refer to Metal Collar Quick Connect Fitting Service .
11. Remove the fuel hose bracket nut.
12. Disconnect the main engine electrical harness connectors. Lift up on the latches (1) in order to disconnect the connectors.
13. Open the harness clip (2).
14. Remove the main engine electrical harness connectors.
15. Disconnect the turbocharger vane position sensor electrical connector (1).
16. Unclip the main engine electrical harness connectors from the main electrical connector harness bracket.
17. Remove the main electrical connector harness bracket bolts (1).
18. Remove the main electrical connector harness bracket (2).
19. Remove the water outlet tube. Refer to Water Outlet Tube Replacement (LMM) (Service and Repair)Water Outlet Tube Replacement (LU3) (Service and Repair) .
20. Remove the auxiliary generator, if equipped. Refer to Auxiliary Generator Replacement (6.6L) .
21. Remove the positive crankcase ventilation (PCV) hose/pipe. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Service and Repair) .
22. 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.
23. Spray lithium grease between the fuel injector line and fittings to assist in containing any debris during removal. Refer to Sealers, Adhesives, and Lubricants (Specifications) for the correct part number.
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.
24. Remove the left fuel injector pipes.
25. Remove the upper valve rocker arm cover bolts.
26. Remove the upper valve rocker arm cover.
27. Remove the upper valve rocker arm cover gasket.
28. Inspect the upper valve rocker arm cover gasket for damage, replace if necessary. Otherwise reuse the old gasket.
29. If required, clean and inspect the upper valve rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection - Upper (Overhaul) .
Installation Procedure
1. Install the 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 .
4. Tighten the upper valve rocker arm cover bolts in the sequence shown.
Tighten the bolts to 8 N.m (71 lb in).
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 left fuel injector pipes.
Tighten the pipes to 41 N.m (30 lb ft).
6. Install the water outlet tube. Refer to Water Outlet Tube Replacement (LMM) (Service and Repair)Water Outlet Tube Replacement (LU3) (Service and Repair) .
7. Install the auxiliary generator, if equipped. Refer to Auxiliary Generator Replacement (6.6L) .
8. Install the PCV hose/pipe. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (Service and Repair) .
9. Install the main electrical connector harness bracket (2).
10. Install the main electrical connector harness bracket bolts (1).
Tighten the bolts to 21 N.m (15 lb ft).
11. Clip the main engine electrical harness connectors to the main electrical connector harness bracket.
12. Connect the turbocharger vane position sensor electrical connector (1).
13. Connect the main engine electrical harness connectors.
14. Push down on the latches (1) in order to connect the connectors.
15. Close the harness clip (2).
16. Connect the fuel lines. Refer to Metal Collar Quick Connect Fitting Service .
17. Install the fuel hose bracket nut.
Tighten the nut to 21 N.m (15 lb ft).
18. Position the generator positive cable.
19. Install the generator positive cable in the clip on the engine front cover.
20. Install the generator positive cable and nut.
Tighten the nut to 9 N.m (80 lb in).
21. Install the positive battery cable junction block bracket and bolt (1) to the power steering pump.
Tighten the bolt to 9 N.m (80 lb in).
22. Remove the tape from the turbocharger openings.
23. Install the charged air cooler inlet duct. Refer to Charge Air Cooler Inlet Pipe Replacement .
24. Fill the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) (Service and Repair)Cooling System Draining and Filling (Static Fill) (Service and Repair) .
25. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (w/Single Battery) Battery Negative Cable Disconnection and Connection (w/Auxiliary Battery) Battery Negative Cable Disconnection and Connection (w/Dual Batteries) .
26. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement (Service and Repair) .