Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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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 INSTRUCTIONSCOOLANT PUMP OUTLET HOSE - STARTER/GENERATOR MODULE REPLACEMENTREMOVAL 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 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 SGMC Coolant Pump Components

Courtesy of GENERAL MOTORS CORP.

Drain the starter/generator control module (SGCM) cooling system. Refer to Draining and Filling Cooling System - Starter/Generator Control Module .
Remove the lower fan shroud. Refer to Fan Shroud Replacement - Lower .
Remove the SGCM coolant pump outlet hose (5) from the clip (6).

Fig 2: View Of SGCM Coolant Pump, Outlet Hose Clamp & Hose

Courtesy of GENERAL MOTORS CORP.

Remove the SGCM coolant pump outlet hose (3) from the clip.
Reposition the SGCM coolant pump outlet hose clamp (2) from the SGCM coolant pump (1).
Remove the SGCM coolant pump outlet hose (3) from the SGCM coolant pump (1).
Remove the SGCM coolant pump outlet hose (3) from the vehicle.

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.