GM Service Manual Online
For 1990-2009 cars only

Repair Procedure

Tools Required

J 41790-A Compressor Holding Fixture


    Object Number: 186939  Size: SH
  1. Remove the compressor from the vehicle. Refer to Compressor .
  2. Install the compressor onto the J 41790-A .
  3. Remove the compressor control valve retaining ring using internal snap ring pliers.
  4. Remove the compressor control valve from the compressor.

Installation Procedure


    Object Number: 186939  Size: SH
  1. Coat the control valve O-rings with clean 525 viscosity refrigeration oil.
  2. Push the compressor control valve into the compressor with thumb pressure.
  3. Using internal snap ring pliers, install the compressor control valve retaining ring.
  4. Make sure the retaining ring is properly seated in the ring groove.

  5. Remove the compressor from the J 41790-A .
  6. Install the compressor into the vehicle. Refer to Compressor .