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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 862 (Engine Cooling System) >> Repair Instructions >> Fan Clutch Replacement (Diesel) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the upper fan shroud. Refer to Engine Coolant Fan Upper Shroud Replacement (Automatic Transmission - Diesel) .
    2. Fig 1: Identifying Fan Shroud Mounting Brackets & Bolts
    GM1674565Courtesy of GENERAL MOTORS CORP.
  2. Remove the 3 engine cooling fan shroud bolts (1).
    3. Fig 2: View Of Cooling Fan Shroud
    GM1674593Courtesy of GENERAL MOTORS CORP.
  3. Position the engine cooling fan shroud (1) forward to the radiator.
    4. Fig 3: View Of Fan Clutch Hub & Nut
    GM1674552Courtesy of GENERAL MOTORS CORP.
  4. Install a long pin bar into the fan hub (1).
  5. Use a J 41240-5A  to remove the fan hub nut (2) from the hub in a counterclockwise rotation. See Special Tools .
  6. Remove the fan and the engine cooling fan shroud as an assembly.
    7. Fig 4: View Of Fan Clutch & Fan Blade
    GM367006Courtesy of GENERAL MOTORS CORP.
  7. Remove the fan clutch bolts from the rear of the fan blade.
  8. Separate the fan clutch from the fan blade.
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