1. Partially drain the cooling system. Refer to Cooling System Draining and Filling .
2. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
3. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
4. Disconnect the left spark plug wires from the spark plugs.
5. Remove the spark plug wire harness clip from the heater inlet and outlet front pipe bracket.
6. Remove the heater inlet and outer front pipe. Refer to Heater Inlet Hose/Pipe and Heater Outlet Hose/Pipe Replacement .



7. Disconnect the positive crankcase ventilation (PCV) foul air tube from the PCV valve. Refer to Plastic Collar Quick Connect Fitting Service .



8. Remove the valve rocker arm cover bolts.

Important: When removing the valve rocker arm cover, ensure the gasket stays in place attached to the cylinder head.

9. Remove the valve rocker arm cover. If necessary, bump the end of the cover with the palm of your hand or a soft rubber mallet if the cover adheres to the cylinder head.
10. Cut the RTV in the channel where the intake, cylinder head and valve rocker arm cover meet with a suitable tool.
11. Remove the valve cover gasket.
12. Clean the sealing surface on the cylinder head with degreaser.

Important: All gasket mating surfaces need to be free of oil and foreign material. Use lubricant to clean the surfaces. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.

1. Install a NEW valve rocker arm cover gasket into the groove in the valve rocker arm cover. Ensure that the gasket is properly seated in the groove of the valve rocker arm cover.
2. Apply sealant at the cylinder head to the surfaces where the cylinder head and intake manifold meet (1). Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.



3. Install the valve rocker arm cover.

Notice: Refer to Fastener Notice in the Preface section.

Important: Use an alternating criss-cross pattern when tightening the valve rocker cover bolts. Failure to do so may result in oil leakage from the valve cover due to improper seating of the gasket.

4. Install the valve rocker arm cover bolts.

Tighten
Tighten the bolts to 10 N·m (89 lb in).




5. Connect the PCV foul air tube to the PCV valve. Refer to Plastic Collar Quick Connect Fitting Service .



6. Install the heater inlet and outer front pipe. Refer to Heater Inlet Hose/Pipe and Heater Outlet Hose/Pipe Replacement .
7. Install the spark plug wire harness clip to the heater inlet and outlet front pipe bracket.
8. Connect the left spark plug wires to the spark plugs.
9. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
10. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .
11. Fill the cooling system, as necessary. Refer to Cooling System Draining and Filling .