Installation Procedure

Add the proper amount of PAG oil to the compressor crankcase. Refer to Compressor Oil Balancing .
Install the A/C compressor.
Install the A/C compressor to the bracket.

Fig 1: View Of A/C Compressor Bracket Bolts

Courtesy of GENERAL MOTORS CORP.

Align the bracket with the long bolts before tightening the compressor (2) to the bracket (1).

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the upper rear compressor mounting bolt.
Tighten: Tighten the bolt to 50 N.m (37 lb ft).
Install the accessory drive belt tensioner to the compressor mounting bracket.
Install the bolts to the accessory drive belt tensioner.
Tighten: Tighten the bolt to 50 N.m (37 lb ft).
Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
Install the A/C compressor mounting bolts (3).
Tighten: Tighten the bolts to 50 N.m (37 lb ft).
Connect the electrical connector to the A/C compressor.
Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
Install the upper A/C compressor mounting bracket bolts (4).
Tighten: Tighten the bolts to 50 N.m (37 lb ft).
Install the compressor hose assembly. Refer to Compressor Hose Assembly Replacement .
Install the lower coolant hose. Refer to Radiator Hose Replacement - Inlet in Engine Cooling.
Install the A/C drive belt. Refer to Drive Belt Replacement - Air Conditioning in Engine Mechanical - 6.0L.
Install the fan and shroud. Refer to Cooling Fan Replacement - Electric in Engine Cooling.
Fill the cooling system. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (Vac-N-Fill) in Engine Cooling.
Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
Leak test the fittings of the component using the J 39400-A . See Special Tools .