Visual Inspection
WARNING: This page is about a different car, the 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
Inspect the camshaft oil feed holes (1) to the camshaft position actuator for dirt, debris or blockage.
- Inspect the threaded hole (2) for damage.
- Inspect the camshaft position actuator locating notch (3) for damage or wear.
- Inspect the camshaft sealing grooves (4) for damage.
- Inspect the camshaft thrust surface (5) for damage.
- Inspect the camshaft lobes (6) and journals (7) for the following conditions:
- Excessive scoring or pitting
- Discoloration from overheating
- Deformation from excessive wear, especially the camshaft lobes
- If any of the above conditions exist on the camshaft, replace the camshaft.