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Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install a new water pump gasket.
    2. Fig 1: Removing/Installing Water Pump
    GM637645Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the water pump and secure the water pump with the bolts.

    Tighten: 

    • On the initial pass, tighten the bolts to 4 N.m (35 lb in).
    • On the final pass, tighten the bolts to 10 N.m (89 lb in).

    3. Fig 2: Removing/Installing Water Pump Pulley
    GM748318Courtesy of GENERAL MOTORS CORP.
  3. Install the water pump pulley.
  4. Install the water pump pulley bolts.
  5. Using the J 41240  , secure the water pump pulley while tightening the water pump pulley bolts.

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

  6. Remove the J 41240  .
  7. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 4.2L.
  8. Install the fan and the shroud. Refer to Cooling Fan and Shroud Replacement .
  9. Fill the cooling system with the specified coolant and concentration. Refer to Draining and Filling Cooling System (LL8)  or Draining and Filling Cooling System (LM4) .
  10. Inspect for leaks.
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