GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

    • J 22794 Spark Plug Port Adapter
    • J 5892-D Valve Spring Compressor
    • J 38606 Valve Spring Compressor

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Remove the valve rocker cover. Refer to Valve Rocker Arm Cover Replacement .
  3. Remove the spark plug. Refer to Spark Plug Replacement in Engine Electrical.
  4. Remove the valve rocker arm. Refer to Valve Rocker Arm Cover Replacement .
  5. Rotate crankshaft until the piston is at TDC of the compression stroke
  6. Install the J 22794 to the spark plug port.
  7. Apply compressed air to hold the valves in place.
  8. Compress the valve spring. Use the 3.1L Compressing the Valve Spring or the J 38606 .
  9. Remove the following items:
  10. • Valve locks
    • Valve cap
    • Valve spring

    Object Number: 54389  Size: SH
  11. Remove the valve stem oil seal.

Installation Procedure

Tools Required

    • J 38606 Valve Spring Compressor
    • J 5892-D Valve Spring Compressor
  1. Install the valve stem oil seal. Use the plastic sleeve provided. Press the oil seal over the valve guide boss.

  2. Object Number: 54389  Size: SH
  3. Assemble the following items:
  4. • Spring seat
    • Valve spring
    • Valve cap
  5. Compress the valve spring. Use the J 38606 Valve Spring Compressor.
  6. Install the valve locks. Hold the valve locks in place with grease.