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Cleaning Procedure

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.

Important:  Mark, sort, or organize components for return to their original locations.

  1. Clean the valve stems and heads on a buffing wheel.
  2. Clean the following components in solvent:
    • Valve stem keys (1)
    • Valve spring cap (2)
    • Valve spring (3)
    • Valve Rotators (5)
    • Valve (6)
    • Cylinder head
    CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
  3. Dry the components with compressed air.

    Important:  Be careful not to damage the chamber or the valve seat.

  4. Use the J 8089  in order to clean the carbon from the combustion chambers.
    Fig 1: Cleaning Combustion Chambers Using J 8089
    G01675479Courtesy of GENERAL MOTORS CORP.