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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 226 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSWATER PUMP REPLACEMENT (LC3)INSTALLATION PROCEDURE
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Installation Procedure

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Installation Procedure
WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing/Installing Water Pump Pulley & Bolts
    GM1201096Courtesy of GENERAL MOTORS CORP.
  1. Install the water pump and NEW seal to the engine front cover.
    2. NOTE: Refer to Fastener Notice .
  2. Install the water pump bolts.

    Tighten:  Tighten the water pump bolts to 10 N.m (89 lb in).

    3. Fig 2: Water Pump Pulley Bolts
    GM1649749Courtesy of GENERAL MOTORS CORP.
  3. Install the water pump pulley to the water pump.
  4. Install the water pump pulley bolts.

    Tighten:  Tighten the water pump pulley bolts to 12 N.m (106 lb in).

  5. Install the air conditioning, power steering and water pump drive belt tensioner. Refer to Drive Belt Tensioner Replacement - Air Conditioning, Power Steering, and Water Pump .
  6. Install the air conditioning, power steering and water pump drive belt. Refer to Water Pump and Air Conditioning Compressor and Power Steering Pump Belt Replacement .
  7. Install the cooling fan. Refer to Engine Cooling Fan Replacement  or Engine Cooling Fan Replacement .
  8. Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill)  or Cooling System Draining and Filling (GE 47716) .
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.