Hummer H2. Manual - part 1978

Fig. 25: Suction Hose & Accumulator 
Courtesy of GENERAL MOTORS CORP. 

4. Remove the suction hose nut (1) from the accumulator (3).  

5. Remove the suction hose (2) from the accumulator (3).  

6. Remove the suction hose (2) from the vehicle.  

7. Discard all of the used sealing washers.  

8. Cap all of the A/C system openings.  

Installation Procedure 

1. Install the suction hose assembly to the vehicle.  

2. Install the new sealing washers. Refer to Sealing Washer Replacement . 

 

2004 Hummer H2 

2004 HVAC Heating, Ventilation and Air Conditioning - Hummer H2

  

Fig. 26: Suction Hose & Accumulator 
Courtesy of GENERAL MOTORS CORP. 

3. Install the suction hose (2) to the accumulator (3). 

4. Install the suction hose nut (1) to the accumulator (3). 

Tighten: Tighten the nut to 16 N.m (12 lb ft).

NOTE:

Refer to Fastener Notice in Cautions and Notices.

 

2004 Hummer H2 

2004 HVAC Heating, Ventilation and Air Conditioning - Hummer H2

  

Fig. 27: Discharge Hose & A/C Compressor 
Courtesy of GENERAL MOTORS CORP. 

5. Install the suction hose (1) to the compressor (4).  

6. Install the suction hose mounting bolt (2) to the A/C Compressor (4). 

Tighten: Tighten the bolt to 16 N.m (12 lb ft). 

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

8. Leak test the fittings of the component using the J 39400-A . See Special Tools and Equipment . 

 

2004 Hummer H2 

2004 HVAC Heating, Ventilation and Air Conditioning - Hummer H2

  

EVAPORATOR TUBE REPLACEMENT

Tools Required 

J 39400-A Halogen Leak Detector. See Special Tools and Equipment . 

Removal Procedure 

1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging . 

Fig. 28: Evaporator Tube & Condenser 
Courtesy of GENERAL MOTORS CORP.

 

2004 Hummer H2 

2004 HVAC Heating, Ventilation and Air Conditioning - Hummer H2