Pacifica, 2003-2005

Removal & Installation

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3.5L Engine




CAUTION
Never remove pressure cap with the system hot and under pressure because serious burns from coolant can occur.

  1. Disconnect negative cable from remote jumper terminal.
  2.  
  3. Drain cooling system.
  4.  
  5. Disconnect radiator upper hose from thermostat housing.
  6.  
  7. Remove thermostat housing bolts.
  8.  
  9. Remove housing, thermostat, and gasket.

    Click image to see an enlarged view

    Fig. View of the coolant outlet connector (1) and thermostat housing (2)-3.5L engine

    View of the coolant outlet connector (1) and thermostat housing (2)-3.5L engine
  10.  
  11. Clean gasket sealing surfaces.
  12.  

To install:

  1. Install thermostat and gasket into thermostat housing. For ease of installation, install bolts in housing for thermostat and gasket retention.
  2.  
  3. Install thermostat and housing to the intake manifold. Tighten the bolts to 105 inch lbs. (12 Nm).
  4.  
  5. Connect radiator hoses and install hose clamp.
  6.  
  7. Refill cooling system.
  8.  
  9. Connect negative cable to remote jumper terminal.
  10.  

 
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