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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 897 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSRADIATOR SURGE TANK REPLACEMENT (HP2)
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Radiator Surge Tank Replacement (HP2)

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Radiator Surge Tank Replacement (HP2)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Radiator Surge Tank (HP2)
GM1966917Courtesy of GENERAL MOTORS COMPANY
Radiator Surge Tank Replacement (HP2)

Callout Component Name

Preliminary Procedures

  1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) .
  2. Remove air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  3. Remove the radiator surge tank inlet hose/pipe. Refer to Radiator Surge Tank Inlet Hose/Pipe Replacement (Non-HP2) , Radiator Surge Tank Inlet Hose/Pipe Replacement (HP2) .
  4. Remove the radiator surge tank outlet hose. Refer to Generator Control Module Coolant Inlet Hose Replacement .
  5. Reposition the radiator inlet hose to get access to the radiator surge tank bolts.
  6. Unclip the overflow hoses from the fan shroud.
1 Radiator Surge Tank Bolt (Qty: 2)
CAUTION:

Refer to Fastener Caution .


Tighten 
10 N.m (89 lb in)
2 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.