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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1620 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (6.6L Engine) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the left fender wheelhouse inner panel. Refer to WHEELHOUSE PANEL REPLACEMENT .
  2. Drain the engine coolant and the engine block. Refer to Draining and Filling Cooling System .
  3. Remove the thermostat housing crossover. Refer to Thermostat Housing Crossover Replacement (6.6L Engine) .
  4. Remove the fan clutch. Refer to Fan Clutch Replacement .
  5. Remove the crankshaft balancer. Refer to CRANKSHAFT BALANCER .
    Fig 1: Remove Oil Cooler Inlet Pipe To Water Pump Nuts
    G02109224Courtesy of GENERAL MOTORS CORP.
  6. Remove the oil cooler inlet pipe to water pump nuts.
  7. Remove the engine wiring harness retainer from the inner stud.
  8. Remove the water pump bolts. Note the location of the bolts. The bolts are three different lengths.
  9. Remove the water pump.
  10. Remove the water pump outlet pipe gasket.
  11. If required, clean and inspect the water pump. Refer to INSPECTION .
    Fig 2: Remove Water Pump, Outlet Pipe Gasket & Bolts
    G02109225Courtesy of GENERAL MOTORS CORP.
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