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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1426 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSRADIATOR SURGE TANK REPLACEMENT (HP2)

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Radiator Surge Tank Replacement (HP2)

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Radiator Surge Tank Replacement (HP2)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Radiator Surge Tank (HP2)

Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Preliminary Procedures

Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) .
Remove air cleaner assembly. Refer to Air Cleaner Assembly Replacement
Remove the radiator surge tank inlet hose/pipe. Refer to Radiator Surge Tank Inlet Hose/Pipe Replacement (Non-HP2) or Radiator Surge Tank Inlet Hose/Pipe Replacement (HP2)
Remove the radiator surge tank outlet hose. Refer to Generator Control Module Coolant Inlet Hose Replacement
Reposition the radiator inlet hose to get access to the radiator surge tank bolts.
Unclip the overflow hoses from the fan shroud.

Radiator surge tank bolt (Qty: 2)

NOTE: Refer to Fastener Notice .

Tighten: 10 N.m (89 lb in)

Radiator surge tank.

RENDER: 1.0x

NO RELATED

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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.