Camshaft Inspection Procedure

WARNING: This page is about a different variant/trim than selected.

Fig 1: Identifying Camshaft Inspection Areas
Courtesy of GENERAL MOTORS COMPANY

Inspect the camshaft oil feed holes (5) for dirt, debris or blockage.
Inspect the threaded hole (6) for damage.
Inspect the camshaft lobes (1, 3) and journals (2, 4) for the following conditions:
- Excessive scoring or pitting
- Discoloration from overheating
- Deformation from excessive wear, especially the camshaft lobes
If any of the conditions above exist on the camshaft, replace the camshaft.