For 1990-2009 cars only
Removal Procedure
- Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
- Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
- Remove the radiator. Refer to Radiator Replacement in Engine Cooling.
- Remove the A/C condenser. Refer to Condenser Replacement in Heating Ventilation and Air Conditioning.
- Remove the valve lifters. Refer to Valve Lifter Replacement .
- Remove the timing chain and the camshaft sprocket. Refer to Timing Chain and Sprocket Replacement .
- Remove the balance shaft drive gear.
- Remove the camshaft. Refer to Camshaft Removal .
- Clean and inspect the camshaft and the bearings. Refer to Camshaft and Bearings Clean and Inspect .
Installation Procedure
- Install the camshaft into the engine block. Refer to Camshaft Installation .
- Install the balance shaft drive gear. Refer to Balance Shaft Installation for alignment of the balance shaft drive gear and the driven gear.
- Install the timing chain and camshaft sprocket. Refer to Timing Chain and Sprocket Replacement .
- Install the valve lifters. Refer to Valve Lifter Replacement .
- Install the A/C condenser. Refer to Condenser Replacement in Heating Ventilation and Air Conditioning.
- Install the radiator. Refer to Radiator Inlet Hose Replacement in Engine Cooling.
- Fill the engine cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
- Recharge the air conditioning system. Refer to Refrigerant Recovery and Recharging in Heating Ventilation and Air Conditioning.
- Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
Important: Whenever a new camshaft is installed, do the following procedures:
• Change the engine oil. • Change the engine oil filter. • Add GM Engine Oil Supplement GM P/N 1052367 or the
equivalent to the engine oil.
