AutoZone | Repair Guides | Engine Cooling | Thermostat | Removal & Installation | AutoZone.com

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    DeVille, Eldorado, Seville 1999-2005

    Removal & Installation

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    1. Disconnect the negative battery cable.
    2.  
    3. Drain the coolant.
    4.  
    5. Remove the air intake duct.
    6.  
    7. Disconnect the radiator hose
    8.  
    9. Remove the thermostat housing.
    10.  
    11. Remove the thermostat.
    12.  
    13. Clean all sealing surfaces.

      Click image to see an enlarged view

      Fig. Thermostat and housing-typical

    14.  

    To install:

    1. Install the thermostat.
    2.  
    3. Install the thermostat housing using a new gasket.
    4.  
    5. Install the thermostat housing bolts and tighten as follows:
      1. 1999 models: 15 ft. lbs. (20 Nm)
      2.  
      3. 2000-05 models: 89 inch lbs. (10 Nm).
      4.  

    6.  
    7. Connect the radiator hose.
    8.  
    9. Install the air intake duct.
    10.  
    11. Refill the coolant.
    12.  
    13. Connect the negative battery cable.
    14.  
    15. Start the engine and check for leaks.
    16.  

     
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