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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 536 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSWATER PUMP REPLACEMENT (LA1)INSTALLATION PROCEDURE
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

Installation Procedure

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Installation Procedure
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Water Pump & Gasket
    GM30996Courtesy of GENERAL MOTORS CORP.
  1. Install the water pump gasket.
  2. Install the water pump.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the water pump bolts.

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

    4. Fig 2: View Of Water Pump Pulley
    GM30978Courtesy of GENERAL MOTORS CORP.
  4. Install the water pump pulley.
  5. Install the water pump pulley bolts.
  6. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 3.4L.

    Tighten:  Tighten the water pump pulley bolts to 25 N.m (18 lb in).

    7. Fig 3: Locating Drive Belt Guard
    GM368805Courtesy of GENERAL MOTORS CORP.
  7. Install the drive belt guard.
  8. Fill the cooling system. Refer to Draining and Filling Cooling System .
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.