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Water Pump Installation

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required 

J 41240  Fan Clutch Remover and Installer

  1. Install the water pump and gaskets.
  2. Fig 1: View Of Water Pump & Gasket
    GM470790Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the water pump bolts.

    Tighten: 

    • Tighten the water pump bolts (1-4) a first pass in sequence to 25 N.m (18 lb ft).
    • Tighten the water pump bolts (1-4) a final pass in sequence to 50 N.m (37 lb ft).

  4. Fig 2: View Of Water Pump Bolt Tightening Sequence
    GM800380Courtesy of GENERAL MOTORS CORP.
  5. Install the water pump pulley (303) and bolts (302).
  6. Fig 3: View Of Water Pump Pulley & Bolts
    GM1310030Courtesy of GENERAL MOTORS CORP.
  7. Use the J 41240  in order to retain the water pump pulley.

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

  8. Fig 4: View Of J 41240
    GM635640Courtesy of GENERAL MOTORS CORP.