GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the air cleaner and duct assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.1L.
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .

  3. Object Number: 412103  Size: SH
  4. Remove the compressor hose nut (1) from the accumulator and position the line aside.

  5. Object Number: 412091  Size: SH
  6. Remove the suction line nut (1) from the accumulator and position the line aside.

  7. Object Number: 412101  Size: SH
  8. Remove the accumulator bracket bolt and the accumulator.
  9. Remove and discard the O-ring seals on the compressor hose and the suction line.

Installation Procedure


    Object Number: 412101  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 and the bracket bolt.
  2. Tighten
    Tighten the accumulator bracket bolt to 4 N·m (36 lb in).

    Important: Lubricate the new O-ring seals and seal washers with a mineral base 525 viscosity refrigerant oil.

  3. Install the new O-ring seals onto the compressor hose and the suction line. Refer to O-Ring Replacement .

  4. Object Number: 412091  Size: SH
  5. Install the suction line and nut (1) onto the accumulator
  6. Tighten
    Tighten the suction line nut to 47 N·m (35 lb ft).


    Object Number: 412103  Size: SH
  7. Install the compressor hose and nut (1) onto the accumulator.
  8. Tighten
    Tighten the compressor hose nut to 16 N·m (12 lb ft).

  9. Evacuate and charge the system. Refer to Refrigerant Recovery and Recharging .
  10. Inspect the system for leaks. Refer to Leak Testing .
  11. Install the air cleaner and duct assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.1L.