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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1451 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (LL8) >> Removal Procedure

Removal 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. Drain the coolant. Refer to Draining and Filling Cooling System (LL8)  or Draining and Filling Cooling System (LM4) .
  2. Remove the fan and shroud. Refer to Cooling Fan and Shroud Replacement .
  3. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 4.2L.
    4. Fig 1: Removing/Installing Water Pump Pulley
    GM748318Courtesy of GENERAL MOTORS CORP.
  4. Using the J 41240  , secure the water pump pulley and remove the water pump pulley bolts.
  5. Remove the J 41240  .
  6. Remove the water pump pulley.
    7. Fig 2: Removing/Installing Water Pump
    GM637645Courtesy of GENERAL MOTORS CORP.
  7. Loosen and remove the water pump bolts.
  8. Remove the water pump.
  9. Clean and inspect the water pump. Refer to Water Pump Cleaning and Inspection in Engine Mechanical - 4.2L Unit Repair.
  10. Discard and replace the gasket.
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