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 refrigerant using an approved refrigerant recovery system. Measure the amount of oil removed during recovery and record.

  4. Object Number: 892706  Size: SH
  5. Remove the liquid line to suction/liquid line assembly nut.
  6. Remove the liquid line and seal washer from the suction/liquid line assembly.
  7. Install cap on suction/liquid line assembly to prevent moisture entry and oil spillage.
  8. Release the liquid line from the rail clamp.
  9. Caution: Refer to Vehicle Lifting Caution in the Preface section.


    Object Number: 892737  Size: SH
  10. Raise the vehicle.
  11. Caution: Refer to HVAC Compressor Lines/Hoses Caution in the Preface section.

  12. Remove the liquid line-to-condenser block bolt.

  13. Object Number: 893625  Size: SH
  14. Remove the liquid line from the condenser clamps.

  15. Object Number: 892738  Size: SH
  16. Remove the liquid line and seal washer from condenser block.
  17. Install the plug into the condenser block to prevent moisture entry and oil spillage.

Installation Procedure


    Object Number: 892738  Size: SH
  1. Add any PAG oil that was removed during discharge to liquid line.
  2. Important: 

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

  3. Install the new seal washer onto the liquid line.
  4. Remove the condenser block plug and install the liquid line to the condenser block.

  5. Object Number: 893625  Size: SH
  6. Install the liquid line into the condenser clamps.
  7. Tighten
    Tighten the fasteners to 6 N·m (53 lb in).


    Object Number: 892737  Size: SH
  8. Hand start the liquid line-to-condenser block bolt.
  9. Tighten
    Tighten the bolt to 20 N·m (15 lb ft).


    Object Number: 892706  Size: SH
  10. Lower the vehicle.
  11. Remove the suction/liquid line cap and install a new seal washer.
  12. Install the liquid line to the suction/liquid line assembly and hand start the nut.
  13. Install the liquid line into the inner rail clamp and close.
  14. Tighten
    Tighten the suction/liquid line-to-suction pipe nut to 12 N·m (106 lb in).

  15. Connect the negative battery cable.
  16. Tighten
    Tighten the battery terminal bolts 17 N·m (13 lb ft).

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