Valve Lifter Cleaning and Inspection
WARNING: This page is about a different car, the 2018 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.
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Courtesy of GENERAL MOTORS COMPANY
CAUTION:Refer to Valve Lifter Priming Caution .
Inspect the stationary hydraulic lash adjuster (SHLA) in the following areas:
- A plugged oil passage (1)
- A scored or worn camshaft follower pivot area (2)
- A damaged or broken retainer (3), some applications
- A severely scuffed or worn SHLA body (4)
- Replace the SHLA or SHLAs as necessary.