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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 667 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSWATER PUMP REPLACEMENT (3.8L)REMOVAL PROCEDURE
1999 GMC Forward Control 5.7 R, Automatic

Removal Procedure

1999 GMC Forward Control 5.7 R, AutomaticSECTION Removal Procedure
WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System .
  2. Loosen water pump pulley bolts.
  3. Remove drive belt. Refer to DRIVE BELT REPLACEMENT (L36) or DRIVE BELT REPLACEMENT (L67) .
  4. Remove the water pump pulley bolts.
    Fig 1: Water Pump Pulley & Bolts
    G01703883Courtesy of GENERAL MOTORS CORP.
  5. Remove water pump pulley.
  6. Remove power steering pump and reposition.
  7. Remove the water pump bolts.
    Fig 2: Water Pump Bolts
    G01703884Courtesy of GENERAL MOTORS CORP.
  8. Remove water pump.
  9. Remove the water pump gasket.
  10. Clean and inspect the water pump mating surfaces.
    Fig 3: Water Pump & Gasket
    G01703885Courtesy of GENERAL MOTORS CORP.
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.