GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • EN-49074 Universal Valve Spring Compressor
    • EN-49075 Valve Spring Compressing Adapter

    Object Number: 2033799  Size: SH

    Note: Take extreme care to prevent any scratches, nicks or damage to the camshaft surfaces.

  1. Remove the camshaft sprocket.
  2. Remove the camshaft cap bolts in this sequence (1)-(4)-(2)-(3).
  3. Remove the camshaft caps.
  4. Remove the camshafts and oil seal rings.
  5. Remove the valve tappet.

  6. Object Number: 2033828  Size: SH
  7. Install the EN-49074 compressor and EN-49075 adapter .
  8. Remove the valve key.

  9. Object Number: 2033829  Size: SH
  10. Remove the valves, springs (2), retainers (1), and seals (3).