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Valve Visual Inspection Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect the valve for damage from the head to tip for the following conditions:
    • Pitting in the valve seat area (1).
    • Lack of valve margin (2).
    • Bending in the valve stem (3).
    • Pitting or excessive wear in the stem (4).
    • Worn valve key grooves (5).
    • Worn valve tip (6).
  2. Replace the valve if any of these conditions exist.
    Fig 1: Checking Valve For Damage
    G01815885Courtesy of GENERAL MOTORS CORP.
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