GM Service Manual Online
For 1990-2009 cars only

    Notice: Refer to Valve Lifter Priming Notice in the Preface section.


    Object Number: 1960717  Size: SH
  1. Inspect the stationary hydraulic lash adjuster (SHLA) in the following areas:
  2. • A plugged oil passage (1).
    • A scored or worn valve rocker arm pivot area (2).
    • A damaged or broken retainer (3).
    • A extremely scuffed or worn SHLA body (4).
  3. Replace the SHLA or SHLAs as necessary.