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Home >> Chevrolet >> 2015 >> Impala Limited LS >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System >> Repair Instructions >> Water Pump Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Water Pump, Seal And Fasteners
    GM2632502Courtesy of GENERAL MOTORS COMPANY
  1. Install the water pump (3) with a NEW seal (2) and hand tighten the NEW water pump fasteners (1).
    2. Fig 2: Water Pump Bolts Tightening Sequence
    GM2587757Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

    CAUTION:

    Refer to Fastener Caution .

  2. Tighten the water pump bolts in the sequence.
    1. On the initial pass, tighten the bolts in sequence to 10 N.m (89 lb in).
    2. On the second pass, tighten the bolts in sequence to 10 N.m (89 lb in).
    3. On the final pass, tighten the bolts in sequence shown an additional 45 degrees.
    3. Fig 3: Water Pump Pulley And Fasteners
    GM2632503Courtesy of GENERAL MOTORS COMPANY
  3. Use the EN 46104  water pump pulley holder to hold the pulley .
  4. Install the water pump pulley (2) and tighten the water pump pulley fasteners (1) to 10 N.m (89 lb in).
  5. Install the drive belt. Refer to Drive Belt Replacement .
  6. Fill the cooling system. Refer to Cooling System Draining and Filling .
  7. Start the engine and check for coolant leaks.
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