Camshaft Timing Chain and Sprocket Cleaning and Inspection (LS3 or L99)
WARNING: This page is about a different variant/trim than selected.
- Clean the components with cleaning solvent.
- Dry the components with compressed air.
- Inspect the timing chain (1) for binding or wear.
- Inspect the camshaft position (CMP) sensor raised areas (2) for nicks or damage.
- Inspect for worn, damaged, or chipped teeth (3).
- Inspect for a damaged keyway (4).
- Inspect for worn oil pump drive splines (5).
- Inspect the timing chain tensioner for the following conditions:
- Damaged or broken tension spring (1)
- Excessive wear or scoring on the chain guide surfaces (2, 3)
WARNING:
Refer to Safety Glasses and Compressed Air Warning .