GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 39500-B R-134a A/C Refrigerant Recovery, Recycling and Recharging System (ACR4)
    • J 5403 Snap Ring Pliers
    • J 9553-01 O-Ring Remover

    Object Number: 258039  Size: SH
  1. Recover the refrigerant using the J 39500-B .
  2. Disconnect the electrical connector from the switch (4) in the rear head of the compressor.
  3. Remove the switch retaining ring using the J 5403 .
  4. Remove the switch (4) from the compressor.
  5. Remove the old O-ring seal from the switch cavity using the J 9553-01 .
  6. Inspect the switch cavity and the O-ring groove in the rear head for dirt or foreign material. Clean as necessary.