Valve Rocker Arm Cleaning and Inspection

WARNING: This page is about a different car, the 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Inspecting Valve Rocker Arms

Courtesy of GENERAL MOTORS CORP.

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.