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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation, And Air Conditioning >> Repair Instructions >> Compressor Replacement (LD8)

Compressor Replacement (LD8)

Fig 1: Removing/Installing Compressor (LD8)
GM1656294Courtesy of GENERAL MOTORS CORP.
Compressor Replacement (LD8)

Callout Component Name
NOTE: Refer to Fastener Notice
Fastener Tightening Specifications:  Refer to Fastener Tightening Specifications 

Preliminary Procedure

  1. Recover the refrigerant from the air conditioning (A/C) system. 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 tire. Refer to Tire and Wheel Removal and Installation
  5. Remove the lower air deflector. Refer to Front Air Deflector Replacement
  6. Remove the washer solvent container. Refer to Washer Solvent Container Replacement
  7. Remove the brake line retaining clips from the engine frame in order to allow the brake lines to move during removal of the A/C compressor.
  8. IMPORTANT: Seal the compressor suction and discharge ports after the hoses are removed in order to keep contaminants from entering the compressor and oil from draining out of the compressor during removal.
  9. Disconnect the A/C compressor electrical connector.
1 A/C Compressor Suction Hose Retaining Nut

Tighten:  16 N.m (12 lb ft)

2 Sealing Washer
Tip:  Remove and discard the sealing washer. Refer to Sealing Washer Replacement 
3 A/C Compressor Discharge Hose Retaining Nut

Tighten:  16 N.m (12 lb ft)

4 Sealing Washer
Tip:  Remove and discard the sealing washer. Refer to Sealing Washer Replacement 
5 A/C Compressor Retaining Nut

Tighten:  25 N.m (18 lb ft)

6 A/C Compressor Front Retaining Bolt

Tighten:  25 N.m (18 lb ft)

7 A/C Compressor Rear Retaining Bolt

Tighten:  25 N.m (18 lb ft)

8 A/C Compressor Retaining Stud

Tighten:  25 N.m (18 lb ft)

9 A/C Compressor