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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)) >> Installation Procedure

Installation 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. Lubricate the water pump O-ring with engine oil.
  2. Install the engine coolant pipe gasket and water pump O-ring.
  3. Install the water pump.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the water pump bolts. Ensure the correct length bolt is used in the proper location.

    Tighten:  Tighten the bolts to 21 N.m (15 lb ft).

    5. Fig 1: View Of Water Pump & O-Ring (6.6L (LLY))
    GM1336116Courtesy of GENERAL MOTORS CORP.
  5. Install the engine wiring harness retainer on the water pump outlet pipe inner stud.
  6. Install the water pump to engine coolant pipe nuts.

    Tighten:  Tighten the nuts to 21 N.m (15 lb ft).

    7. Fig 2: View Of Water Pump Outlet Pipe Nuts
    GM1336115Courtesy of GENERAL MOTORS CORP.
  7. Install the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement (6.6L (LLY)) .
  8. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement in Engine Mechanical - 6.6L (LLY).
  9. Install the left wheelhouse inner panel. Refer to Wheelhouse Panel Replacement in Body Front End.
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