GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Disconnect the negative battery cable from the battery. Refer to

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

    in General Information.
  2. Discharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  3. Remove the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical.

  4. Object Number: 82081  Size: SH
  5. Remove the accumulator hose bolt from the evaporator and heater core module.

  6. Object Number: 82076  Size: SH
  7. Remove the accumulator hose from the accumulator.

Installation Procedure


    Object Number: 82076  Size: SH
  1. Install the accumulator hose onto the accumulator.
  2. Tighten
    Tighten the accumulator hose at the accumulator to 41 N·m (30 lb ft).

    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.


    Object Number: 82081  Size: SH
  3. Install the accumulator hose bolt to evaporator and heater core module.
  4. Tighten
    Tighten the accumulator hose mounting bolt to 25 N·m (18 lb ft).

  5. Install the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical.
  6. Evacuate and charge the air conditioning system. Refer to Evacuation Air Conditioning (A/C) Charging Using ACR4 .
  7. Connect the negative battery cable. Refer to

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

    in General Information.