GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 878122  Size: SH
  1. Disconnect the negative battery cable.
  2. Important: Verifying the purity of the refrigerant with a purity identifier before recovery is recommended.

  3. Recover the refrigerant using an approved refrigerant recovery system. Measure the amount of oil removed during recovery and record.
  4. Caution: Refer to HVAC Compressor Lines/Hoses Caution in the Preface section.


    Object Number: 892731  Size: SH
  5. Remove the suction pipe-to-compressor bolt.
  6. Remove the suction pipe and seal washer from the compressor.
  7. Install the caps on the pipe and compressor to prevent moisture entry and oil spillage.

  8. Object Number: 892729  Size: SH
  9. Raise the vehicle.
  10. Remove the suction pipe to suction line assembly nut.
  11. Remove the suction pipe and seal washer from the suction/liquid line assembly.
  12. Install cap on the suction line assembly hose to prevent moisture entry and oil spillage.
  13. Lower the vehicle.

Installation Procedure


    Object Number: 892731  Size: SH
  1. Remove the compressor suction port cap and add any PAG oil that was removed during refrigerant recovery.
  2. Important: 

       • Always install new seal washers to prevent refrigerant leaks.
       • Do not lubricate seal washers.

  3. Remove the suction pipe cap and install new seal washer.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the suction pipe to compressor bolt and hand start bolt.
  6. Tighten
    Tighten the bolt to 16 N·m (12 lb ft).

    Caution: Refer to Vehicle Lifting Caution in the Preface section.


    Object Number: 892729  Size: SH
  7. Raise the vehicle.
  8. Important: 

       • Always install new seal washers to prevent refrigerant leaks.
       • Do not lubricate seal washers.

  9. Remove the suction/liquid line assembly cap and install a new seal washer.
  10. Install the suction/liquid line assembly to suction pipe and hand start nut.
  11. Tighten
    Tighten the nut to 12 N·m (106 lb in).


    Object Number: 878122  Size: SH
  12. Lower the vehicle.
  13. Connect the negative battery cable.
  14. Tighten
    Tighten the battery terminal bolts to 17 N·m (13 lb ft).

  15. Evacuate, charge, and leak check the A/C system.