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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 (8.1L Engine) >> Installation Procedure

Installation 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. Place NEW water pump gaskets into place.
  2. Install the water pump.
    NOTE: Refer to FASTENER NOTICE .
  3. Install the water pump bolts.

    Tighten 

    Tighten the bolts to 50 N.m (37 lb ft).

    Fig 1: Install Water Pump, Gasket & Bolts
    G02109231Courtesy of GENERAL MOTORS CORP.
  4. Install the bypass hose.
  5. Position the bypass hose clamps at the water pump and water crossover.
    Fig 2: Install Bypass Hose
    G02109232Courtesy of GENERAL MOTORS CORP.
  6. Install the outlet hose to the water pump.
  7. Position the outlet hose clamp at the water pump.
  8. Install the fan clutch. Refer to Fan Clutch Replacement .
  9. Install the drive belt.
  10. Fill the cooling system. Refer to Draining and Filling Cooling System .
    Fig 3: Install Outlet Hose
    G02109233Courtesy of GENERAL MOTORS CORP.
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