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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 691 (ENGINE COOLING SYSTEM (1 OF 2))REPAIR INSTRUCTIONSFAN REPLACEMENT (DIESEL)INSTALLATION PROCEDURE
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Installation Procedure

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Installation Procedure
WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 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.
    Fig 1: Installing Fan Clutch To Fan Blade
    GM721992Courtesy of GENERAL MOTORS CORP.
  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. Install the fan and engine cooling fan shroud assembly to the fan hub.
    4. Fig 2: View Of Fan Clutch Hub & Nut
    GM1674552Courtesy of GENERAL MOTORS CORP.
  4. Use a J 41240-5A  on the fan clutch hub nut (2) to install a long pry bar to the fan clutch hub (1).

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

    5. Fig 3: Identifying Fan Shroud Mounting Brackets & Bolts
    GM1674565Courtesy of GENERAL MOTORS CORP.
  5. Position the engine cooling fan shroud on the 3 mounting brackets (1).
  6. Install the bolts. Loosely tighten the top mounting bolt at the oil filler neck.
    7. Fig 4: Centering Cooling Fan Shroud
    GM1674558Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.