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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 407 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSRADIATOR REPLACEMENT (8.1L)REMOVAL PROCEDURE
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Removal Procedure

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Removal 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.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System (without HP2) .
  2. Reposition the inlet hose clamp from the radiator.
  3. Remove the inlet hose from the radiator.
    4. Fig 1: View Of Radiator Inlet & Outlet Hoses
    GM659469Courtesy of GENERAL MOTORS CORP.
  4. Remove the radiator outlet hose from the radiator. Refer to Radiator Hose Quick Connect Fitting .
  5. Remove the lower fan shroud. Refer to Fan Shroud Replacement - Lower .
  6. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 8.1L.
  7. Remove the push pin from the air cleaner adapter (2).
  8. Remove the bolts from the air cleaner adapter (2).
  9. Remove the air cleaner adapter (2) from the vehicle.
    10. Fig 2: View Of Air Cleaner & Adapter
    GM334911Courtesy of GENERAL MOTORS CORP.
  10. Position the radiator vent inlet hose clamp from the radiator.
  11. Remove the vent inlet hose from the radiator.
    12. Fig 3: View Of Surge Tank Inlet Hose & Radiator
    GM404039Courtesy of GENERAL MOTORS CORP.
  12. Remove the engine oil cooler lines from the radiator. Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting .
  13. Remove the transmission oil cooler lines from the radiator. Refer to Transmission Fluid Cooler Line Quick Connect Fitting in Automatic Transmission - 4L80-E/4L85-E.
  14. Remove the radiator bolts.
  15. Remove the radiator from the vehicle.
    16. Fig 4: View Of Radiator & Bolts
    GM660895Courtesy 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.