Inspection Procedure
WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
Inspect the valve rocker arm roller (1) for the following:
- Flat spots
- Excessive scoring and pitting
- Ensure the roller spins freely
- Inspect the valve rocker arm tip area (2).
- Inspect the valve rocker arm hydraulic lash adjuster (HLA) pivot area (3).
- Inspect the valve rocker arm retaining clip (4).
- Inspect the valve rocker switching arm roller (5) for the following:
- Flat spots
- Excessive scoring and pitting
- Ensure the roller spins freely
- Inspect the valve rocker switching arm tip area (6).
- Inspect the valve rocker switching arm dual feed hydraulic lash adjuster (DFHLA) pivot area (7).
- Replace the valve rocker switching arm or followers as necessary.