GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging .
  2. Remove the coolant recovery or the surge tank. Refer to Coolant Recovery Reservoir Replacement or Surge Tank (Diesel) Replacement in Engine Cooling.
  3. Remove the battery from the vehicle. Refer to Battery Replacement in Engine Electrical.
  4. Remove the A/C lines from the accumulator.
  5. Remove the electrical connectors.

  6. Object Number: 557597  Size: SH
  7. Remove the accumulator (1) and the bracket (5) from the vehicle.

Installation Procedure


    Object Number: 557597  Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Install the accumulator (1) and the bracket (5) to the vehicle.
  2. Tighten

        • Tighten the screws to the evaporator case to 6 N·m (53 lb in).
        • Tighten the nut retaining the accumulator to the A/C evaporator and blower module stud to 16 N·m (12 lb ft).
  3. Install the electrical connectors.

  4. Object Number: 557648  Size: SH
  5. Tighten the compressor/condenser hose to the accumulator to 48 N·m (35 lb ft).
  6. Install the battery to the vehicle. Refer to Battery Replacement in Engine Electrical.
  7. Install the coolant recovery or surge tank. Refer to Coolant Recovery Reservoir Replacement or Surge Tank (Diesel) Replacement in Engine Cooling.
  8. Recharge the refrigerant in the system. Refer to Refrigerant Recovery and Recharging .