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Installation Procedure

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  1. If reusing the fasteners, apply sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent to the threads of the water pump bolts.
  2. Install NEW water pump gaskets and the water pump.
    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.
  3. Install the water pump bolts.

    Tighten 

    Tighten the water pump bolts to 45 N.m (33 ft lbs).

    Fig 1: Installing Water Pump Gaskets, Water Pump & Bolts
    G02079174Courtesy of GENERAL MOTORS CORP.
  4. Using J 41240  to hold the water pump pulley, install the water pump pulley bolts.

    Tighten 

    Tighten the water pump pulley bolts to 25 N.m (18 ft lbs).

    Fig 2: Installing Water Pump Pulley Bolts Using J 41240
    G02079175Courtesy of GENERAL MOTORS CORP.

    Important:  After assembly, the hose clamp tangs (water pump end) must point forward and the upper tang should be level with the outside diameter of the water pump inlet hose.

  5. Install the water pump inlet hose.
  6. Position the water pump inlet hose clamps.
    Fig 3: Installing Water Pump Inlet Hose
    G02079176Courtesy of GENERAL MOTORS CORP.
  7. Install the radiator outlet hose to the water pump.
  8. Install the radiator outlet hose to the surge tank.
  9. Position the radiator outlet hose clamps at the surge tank and water pump.
    Fig 4: Installing Radiator Outlet Hose
    G02079177Courtesy of GENERAL MOTORS CORP.
  10. Install the drive belt. Refer to DRIVE BELT REPLACEMENT .
  11. Install the cooling fan. Refer to Fan Clutch Replacement .
  12. Install the air cleaner outlet resonator duct.
  13. Install the air cleaner assembly.
  14. Fill the cooling system. Refer to Draining and Filling Cooling System .
  15. Inspect the cooling system for leaks.
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