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Installation Procedure

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IMPORTANT: All gaskets surfaces are to be free of oil or other foreign material during assembly.
    Fig 1: View Of Water Pump, Gaskets & Bolts
    GM260121Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. Install the water pump and NEW gaskets.
  2. Install the water pump bolts.

    Tighten: 

    • On the initial pass, tighten the bolts to 15 N.m (11 lb ft).
    • On the final pass, tighten the bolts to 30 N.m (22 lb ft).

    3. Fig 2: View Of Auxiliary Heater Inlet & Outlet Hoses/Pipes
    GM901492Courtesy of GENERAL MOTORS CORP.
  3. Install the auxiliary heater inlet and outlet hose/pipe nut.

    Tighten:  Tighten the nut to 10 N.m (89 lb in).

  4. Install the hose to the throttle body.
  5. Using J 38185  , position the throttle body hose clamp at the throttle body.
  6. Install the inlet and outlet hoses/pipes to the water pump.
  7. Using J 38185  , position the auxiliary heater inlet and outlet hose/pipe clamps at the water pump.
    8. Fig 3: Removing/Installing Outlet Hose From Water Pump
    GM901491Courtesy of GENERAL MOTORS CORP.
  8. Install the outlet hose to the water pump.
  9. Using J 38185  , position the outlet hose clamp at the water pump.
    10. Fig 4: Removing/Installing Inlet Hose From Water Pump
    GM901490Courtesy of GENERAL MOTORS CORP.
  10. Install the inlet hose to the water pump.
  11. Using J 38185  , position the inlet hose clamp at the water pump.
  12. Install the cooing fan and shroud. Refer to Cooling Fan and Shroud Replacement .
  13. Install the accessory drive belt tensioner. Refer to Drive Belt Tensioner Replacement - Accessory in Engine Mechanical - 4.8L, 5.3L, and 6.0L.
    14. Fig 5: View Of Intake Air Tube
    GM898123Courtesy of GENERAL MOTORS CORP.
  14. Install the air cleaner outlet duct and bolt.

    Tighten:  Tighten the bolt to 10 N.m (89 lb in).

  15. Tighten the air cleaner outlet duct clamps at the following locations:
    • Throttle body
    • MAF/IAT sensor

      Tighten:  Tighten the clamps to 7 N.m (62 lb in).

  16. Fill the cooling system. Refer to Draining and Filling Cooling System (LL8)  or Draining and Filling Cooling System (LM4) .
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