Hummer H2. Manual - part 1399

Fig. 52: Using Special Tools For Fan Clutch
Courtesy of GENERAL MOTORS CORP. 

1. Remove the fan shroud. Refer to Fan Shroud Replacement .  

2. Install the J 46406 to the fan clutch. See Special Tools and Equipment . 

Fig. 53: View Of Fan Assembly 
Courtesy of GENERAL MOTORS CORP. 

3. Remove the fan hub nut from the water pump in a counterclockwise rotation. 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 54: Fan Clutch & Fan Blade 
Courtesy of GENERAL MOTORS CORP. 

4. Remove the bolts from the fan clutch.  

5. Remove the fan clutch from the fan blade.  

Installation Procedure 

CAUTION: Do not use or attempt to repair a damaged cooling fan assembly. Replace 

damaged fans with new assemblies. An unbalanced cooling fan could fly 
apart causing personal injury and property damage.

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 55: Fan Clutch & Fan Blade 
Courtesy of GENERAL MOTORS CORP. 

1. Install the fan clutch to the fan blade. 

2. Install the bolts to the fan clutch. 

Tighten: Tighten the bolts to 23 N.m (17 lb ft).

NOTE:

Refer to Fastener Notice in Cautions and Notices.

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 56: View Of Fan Assembly 
Courtesy of GENERAL MOTORS CORP. 

3. Install the fan blade to the vehicle. 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2