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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1003 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (6.6L (LLY)) >> Removal Procedure

Removal Procedure

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.
  1. Remove the left wheelhouse inner panel. Refer to Wheelhouse Panel Replacement in Body Front End.
  2. Remove the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement (6.6L (LLY)) .
  3. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement in Engine Mechanical - 6.6L (LLY).
  4. Remove the water pump to engine coolant pipe nuts.
    5. Fig 1: View Of Water Pump Outlet Pipe Nuts
    GM1336115Courtesy of GENERAL MOTORS CORP.
  5. Remove the engine wiring harness retainer from the inner stud.
    6. Fig 2: View Of Water Pump & O-Ring (6.6L (LLY))
    GM1336116Courtesy of GENERAL MOTORS CORP.
  6. Remove the water pump bolts. Note the location of the bolts. The bolts are three different lengths.
  7. Remove the water pump.
  8. Remove and discard the water pump O-ring and coolant pipe gasket.
  9. If required, clean and inspect the water pump. Refer to Water Pump Cleaning and Inspection in Engine Mechanical - 6.6L (LLY).
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