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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 434 (Engine Cooling System) >> Repair Instructions >> Fan Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
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.
  1. Install the fan clutch onto the fan blade.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the fan clutch bolts

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

    3. Fig 1: Installing Fan Clutch To Fan Blade
    GM721992Courtesy of GENERAL MOTORS CORP.
  3. Install the fan assembly.
    4. Fig 2: View Of Fan Assembly Removed
    GM367004Courtesy of GENERAL MOTORS CORP.
  4. Install the J 46406  to the fan clutch.

    Tighten:  Tighten the nut clockwise to 56 N.m (41 lb ft).

    5. Fig 3: Using Special Tools For Fan Clutch
    GM362333Courtesy of GENERAL MOTORS CORP.
  5. Install the upper fan shroud. Refer to Fan Shroud Replacement - Upper (W/O M74)  or Fan Shroud Replacement - Upper (W/M74)  or Fan Shroud Replacement - Upper (W/HP2) .
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