Hummer H3. Manual — part 1264

Fig. 6: Removing/Installing A/C compressor
Courtesy of GENERAL MOTORS CORP.

11. Remove the A/C compressor mounting bolts from the A/C compressor.

12. Remove the A/C compressor from the vehicle.

13. Drain and measure the A/C compressor oil. Refer to Compressor Oil Balancing.

Installation Procedure

1. Adjust the proper amount of oil to the replacement compressor. Refer to Refrigerant

System Capacities.

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3

Fig. 7: Removing/Installing A/C compressor
Courtesy of GENERAL MOTORS CORP.

2. Install A/C the compressor to the vehicle.

3. Install the A/C compressor mounting bolts.

Tighten: Tighten the bolts to 50 N.m (37 lb ft).

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3

Fig. 8: Identifying Discharge Hose
Courtesy of GENERAL MOTORS CORP.

4. Install new sealing washers to the A/C hoses.

5. Install the A/C compressor hoses to the A/C compressor.

6. Install the A/C suction hose bolt (3).

7. Install the A/C discharge hose bolt.

Tighten: Tighten the bolts to 33 N.m (24 lb ft).

8. Connect the compressor electrical connectors.

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3

9. Install the cooling fan and shroud. Refer to Fan Replacement .

10. Install the drive belt. Refer to Drive Belt Replacement (Without A/C) or Drive Belt

Replacement (With A/C) .

11. Install the left front wheelhouse liner. Refer to Wheelhouse Panel Replacement (Front)

or Wheelhouse Panel Replacement (Rear) .

Install the left front tire. Refer to Tire and Wheel Removal and Installation .

12. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.

13. Using J 39400-A leak test the fittings.

COMPRESSOR CLUTCH PLATE/HUB ASSEMBLY REPLACEMENT

Removal Procedure

1. Remove the skid plate. Refer to Oil Pan Skid Plate Replacement .

2. Remove the engine belt. Refer to Drive Belt Replacement (Without A/C) or Drive Belt

Replacement (With A/C) .

Fig. 9: Exploded View Of Clutch Hub/Bearing Assembly
Courtesy of GENERAL MOTORS CORP.

2007 Hummer H3

2007 HVAC Heating, Ventilation and Air Conditioning - H3