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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 912 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSWATER PUMP REPLACEMENT (4.3L ENGINE)REMOVAL PROCEDURE
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Removal Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Removal Procedure
WARNING: This page is about a different car, the 2007 GMC Savana Special, 2007 GMC Savana Camper Special, 2007 GMC Savana, and 2007 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  2. Remove the air cleaner outlet resonator duct. Refer to Air Cleaner Outlet Resonator Replacement .
  3. Drain the cooling system. Refer to Draining and Filling Cooling System (Static Fill)  or Draining and Filling Cooling System (Vac N Fill) .
  4. Remove the cooling fan.
  5. Remove the drive belt. Refer to Drive Belt Replacement .
    6. Fig 1: View Of Radiator Outlet Hose
    GM367001Courtesy of GENERAL MOTORS CORP.
  6. Reposition the radiator outlet hose clamps at the surge tank and water pump.
  7. Remove the radiator outlet hose from the surge tank.
  8. Remove the radiator outlet hose from the water pump.
    9. Fig 2: View Of Water Pump Inlet Hose & Clamps
    GM182853Courtesy of GENERAL MOTORS CORP.
  9. Reposition the water pump inlet hose clamps.
  10. Remove the water pump inlet hose.
    11. Fig 3: View Of Fan, Water Pump Pulley & Bolts
    GM317191Courtesy of GENERAL MOTORS CORP.
  11. Using J 41240  to hold the water pump pulley, remove the water pump pulley bolts. See Special Tools .
    12. Fig 4: View Of Water Pump & Bolts
    GM188054Courtesy of GENERAL MOTORS CORP.
  12. Remove the water pump bolts.
  13. Remove the water pump.
  14. Remove and discard the water pump gaskets.
  15. Clean and inspect the water pump, if necessary. Refer to Water Pump Cleaning and Inspection .
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.