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