Removal Procedure
- Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (Chevrolet and GMC)Air Cleaner Outlet Duct Replacement (Cadillac) .
- Detach the heater inlet and outlet hose bracket retainer and reposition the bracket.
- Remove the ignition coils. Refer to Ignition Coil Replacement .
- Remove the valve rocker arm cover bolts (1).
- Remove the valve rocker arm cover (1).
- Remove and DISCARD valve rocker arm gasket (2). Refer to Replacing Engine Gaskets .
- Clean and inspect the rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection .