Valve Rocker Arm Cleaning and Inspection (LF4)
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the camshaft follower roller (1) for the following:
- Flat spots
- Excessive scoring and pitting
- Ensure the roller spins freely
- Inspect the camshaft follower valve tip area (2).
- Inspect the camshaft follower stationary hydraulic lash adjuster (SHLA) pivot area (3).
- Replace the camshaft follower or followers as necessary.