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Home >> Chevrolet >> 2001 >> C3500 HD 8.1 G, Automatic >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System >> Repair Instructions >> Fan Replacement >> Installation Procedure

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.

    Fig 1: View Of Fan Blade & Fan Clutch
    GM721992Courtesy of GENERAL MOTORS COMPANY
  1. Install the fan clutch onto the fan blade.
  2. Refer to FASTENER NOTICE in Cautions and Notices.

    Install the fan clutch bolts

    Tighten 

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

    3. Fig 2: View Of Fan Assembly Removed
    GM367004Courtesy of GENERAL MOTORS COMPANY
  3. Install the fan assembly.
    4. Fig 3: Using Special Tools For Fan Clutch
    GM362333Courtesy of GENERAL MOTORS COMPANY
  4. Install the J 46406 to the fan clutch.

    Tighten 

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

  5. Install the upper fan shroud. Refer to Engine Coolant Fan Upper Shroud Replacement .
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