Escalade, Suburban 1500 & 2500, Tahoe, Yukon, Yukon XL 1500 & 2500 (2006-2007), Yukon Denali and Yukon Denali XL (2005-2006)

Removal & Installation

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4.8L, 5.3L, 6.0L & 6.2L Engines



  1. Remove or disconnect the following:

    Air outlet duct
     
    Coolant
     
    Inlet radiator hose from the water pump
     
    Upper fan shroud
     
    Cooling fan and clutch assembly
     
    Drive belt
     
    Radiator outlet hose from the coolant pump
     
    Surge tank hose
     
    Heater hose
     
    Water pump

    Click image to see an enlarged view

    Fig. Exploded view of the water pump assembly-4.8L, 5.3L, 6.0L and 6.2L engines

     

  2.  

To install:


NOTE
DO NOT use cooling system seal tabs (or similar compounds) unless otherwise instructed. The use of cooling system seal tabs (or similar compounds) may restrict coolant flow through the passages of the cooling system or the engine components. Restricted coolant flow may cause engine overheating and/or damage to the cooling system or the engine components/assembly.

  1. Install or connect the following:

    Water pump. Install the water pump bolts. Tighten the water pump bolts first pass to 11 ft. lbs. (15 Nm); tighten the bolts final pass to 22 ft. lbs. (30 Nm).
     
    Water pump drive belt pulley and bolts (if applicable). Tighten the pulley bolts first pass to 89 inch lbs. (10 Nm); tighten the bolts final pass to 18 ft. lbs. (25 Nm).
     
    Surge tank hose
     
    Heater hose
     
    Outlet radiator hose to the coolant pump
     
    Drive belt
     
    Cooling fan and clutch assembly
     
    Upper fan shroud
     
    Inlet radiator hose to the water pump
     
    Air inlet duct
     
    Coolant
     

  2.  

8.1L Engines



  1. Remove or disconnect the following:

    Coolant
     
    Drive belt
     
    Fan clutch
     
    Outlet hose clamp and hose
     

  2.  
  3. Reposition the bypass hose clamps at the water pump and water crossover

    Bypass hose
     
    Water pump bolt and pump. Discard the water pump gaskets.

    Click image to see an enlarged view

    Fig. Exploded view of the water pump assembly-8.1L engines

     

  4.  

To install:

  1. Install or connect the following:

    New water pump gaskets.
     
    Water pump and bolts. Tighten the water pump bolts 37 ft. lbs. (50 Nm).
     
    Bypass hose and clamps
     
    Outlet hose and clamp
     
    Fan clutch
     
    Drive belt
     
    Surge tank hose
     
    Heater hose
     
    Outlet radiator hose to the coolant pump
     
    Drive belt
     
    Cooling fan and clutch assembly
     
    Upper fan shroud
     
    Inlet radiator hose to the water pump
     
    Air inlet duct
     
    Coolant
     

  2.  

 
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