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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 INSTRUCTIONSCOOLING FAN - STARTER/GENERATOR CONTROL MODULE REPLACEMENTINSTALLATION 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.
    Fig 1: View Of SGCM Cooling Fan, Radiator & Bolts
    GM1310028Courtesy of GENERAL MOTORS CORP.
  1. Install the SGCM cooling fan (3) to the SGCM radiator (2).
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the bolts (4) to the SGCM cooling fan (3).

    Tighten:  Tighten the bolts to 6 N.m (53 lb in).

    3. Fig 2: View Of SGCM Radiator, Core Support & Bolts
    GM1206686Courtesy of GENERAL MOTORS CORP.
  3. Install the SGCM radiator (5) to the radiator core support (4).
  4. Install the bolts (1) to the SGCM radiator (5).

    Tighten:  Tighten the bolts to 9 N.m (80 lb in).

  5. Connect the electrical connector to the SGCM cooling fan.
    6. Fig 3: View Of Ambient Air Temperature Sensor & SGCM Radiator Bracket
    GM1285622Courtesy of GENERAL MOTORS CORP.
  6. Install the ambient air temperature sensor (2) to the SGCM radiator bracket (3).
    7. Fig 4: View Of SGCM Radiator Outlet Hose & SGCM Radiator
    GM1206689Courtesy of GENERAL MOTORS CORP.
  7. Install the SGCM radiator outlet hose (1) to the SGCM radiator (2). Refer to Coolant Pipe Quick Connect Fitting - Starter/Generator Control Module .
    8. NOTE: The procedure below must be followed. Improper coolant level could result in a low or high coolant level condition, causing starter/generator control module damage.
  8. Fill the SGCM cooling system. Refer to Draining and Filling Cooling System - Starter/Generator Control Module .
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.