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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 232 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (4.8L, 5.3L, and 6.0L Engines) >> Installation Procedure

Installation Procedure

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Important:  All gaskets surfaces are to be free of oil or other foreign material during assembly.

  1. Install the water pump and NEW gaskets.
    CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  2. Install the water pump bolts.

    Tighten 

    1. Tighten the water pump bolts a first pass to 15 N.m (11 ft lbs).
    2. Tighten the water pump bolts a final pass to 30 N.m (22 ft lbs).
      Fig 1: Installing Water Pump, Gaskets & Bolts
      G02079182Courtesy of GENERAL MOTORS CORP.
  3. Install the heater inlet hose to the water pump.
  4. Position the heater inlet hose clamp at the water pump.
    Fig 2: Installing Heater Inlet Hose
    G02079183Courtesy of GENERAL MOTORS CORP.
  5. Install the outlet hose to the water pump.
  6. Position the outlet hose clamp at the water pump.
    Fig 3: Installing Outlet Hose
    G02079184Courtesy of GENERAL MOTORS CORP.
  7. Install the inlet hose to the water pump.
  8. Position the inlet hose clamp at the water pump.
  9. Install the accessory drive belt tensioner and bolts to the engine.

    Tighten 

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

    Fig 4: Installing Inlet Hose
    G02079185Courtesy of GENERAL MOTORS CORP.
  10. Install the accessory drive belt. Refer to DRIVE BELT REPLACEMENT - ACCESSORY .
  11. Install the fan blade. Refer to Fan Replacement .
  12. Install the air cleaner assembly.
  13. Fill the cooling system. Refer to Draining and Filling Cooling System .
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