Envoy 2WD V8-5.3L VIN M (2005)
Camshaft: Service and Repair
Camshaft Replacement
Removal Procedure
1. Remove the condenser.
2. Remove the valve lifters from both cylinder heads.
3. Remove the camshaft sensor bolt and sensor.
4. Rotate the crankshaft until the timing marks on the crankshaft and camshaft sprockets are aligned.
5. Remove the camshaft sprocket bolts.
6. Notice: Do not turn the crankshaft assembly after the timing chain has been removed in order to prevent damage to the piston assemblies or the
valves.
Remove the camshaft sprocket and reposition the timing chain.