Hummer H2. Manual - part 1953

Tighten: Tighten the screws to 1.6 N.m (14 lb in).

3. Connect the electrical connector (4) to the blower motor control processor (3).  

4. Connect the electrical connector (2) to the blower motor (1).  

5. Install the I/P insulator panel. Refer to Insulator Replacement - Instrument Panel (I/P) .  

RECIRCULATION ACTUATOR REPLACEMENT 

Removal Procedure 

1. Remove the HVAC module assembly. Refer to HVAC Module Assembly Replacement .  

2. Disconnect the electrical connector from the recirculation actuator. 

Fig. 15: Recirculation Actuator & Recirculation Housing (Visteon) 
Courtesy of GENERAL MOTORS CORP.

 

2004 Hummer H2 

2004 HVAC HVAC Systems - Automatic - Hummer H2

  

3. Remove the screws from the recirculation actuator (1).  

4. Remove the recirculation actuator (1) from the HVAC module assembly (2).  

Installation Procedure 

Fig. 16: Recirculation Actuator & Recirculation Housing (Visteon) 
Courtesy of GENERAL MOTORS CORP. 

1. Install the recirculation actuator (1) to the HVAC module assembly (2). 

2. Install the screws to the recirculation actuator (1). 

Tighten: Tighten the screws to 2 N.m (18 lb in).

NOTE:

Refer to Fastener Notice in Cautions and Notices.

 

2004 Hummer H2 

2004 HVAC HVAC Systems - Automatic - Hummer H2

  

3. Connect the electrical connector to the recirculation actuator.  

4. Install the HVAC module assembly. Refer to HVAC Module Assembly Replacement .  

5. Reprogram the recirculation actuator. Refer to Re-Calibrating Actuators .  

MODE ACTUATOR REPLACEMENT 

Removal Procedure 

Fig. 17: Floor Air Outlet Duct 
Courtesy of GENERAL MOTORS CORP. 

1. Remove the push pin (5) from the HVAC module assembly (1).  

2. Remove the left floor duct (3) from the HVAC module assembly (1). 

 

2004 Hummer H2 

2004 HVAC HVAC Systems - Automatic - Hummer H2

  

Fig. 18: Mode Actuator (Visteon) 
Courtesy of GENERAL MOTORS CORP. 

3. Disconnect the electrical connector (3) from the mode actuator (4).  

4. Remove the screws from the mode actuator (4).  

5. Remove the mode actuator (4) from the HVAC module assembly (1).  

6. Remove the cam (2) from the HVAC module assembly (1).  

Installation Procedure 

 

2004 Hummer H2 

2004 HVAC HVAC Systems - Automatic - Hummer H2