GM Service Manual Online
For 1990-2009 cars only

Object Number: 1860691  Size: MF

Callout

Component Name

Preliminary Procedures

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
  2. Remove the drive belt. Refer to Drive Belt Replacement.
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  4. Remove the right front fender liner. Refer to Front Wheelhouse Front Liner Replacement.
  5. Disconnect the A/C compressor electrical connector.
  6. Remove the A/C suction hose from the A/C compressor and cap hose. Refer to Suction Hose Replacement.
  7. Remove the A/C discharge hose from the A/C compressor and cap hose. Refer to Discharge Hose Replacement.

1

A/C Compressor Bolt (Qty: 3)

Caution: Refer to Fastener Caution in the Preface section.

Tip
Tighten the A/C compressor mounting bolts and nut in sequence.

Tighten
50 N·m (37 lb ft)

2

A/C Compressor Nut

Tighten
50 N·m (37 lb ft)

3

A/C Compressor Assembly

Procedure

  1. Replacement of the desiccant cartridge is required upon new compressor replacement. Refer to Air Conditioning Refrigerant Desiccant Replacement.
  2. Install suction screen after a major compressor failure. Refer to Suction Screen Installation.

Tip

    • Use a low viscosity, poly-alkylene glycol (PAG) oil. Use of the incorrect oil can result in compressor failure.
    • When replacing the A/C compressor, balance the compressor. Refer to Air Conditioning Compressor Oil Balancing.
    • Using J 39400 leak test A/C compressor fittings.