Question about 2005 Chrysler Pacifica

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Can not adjust the direction of air flow for the heater or defros

Problem started when I noticed the defroster did not blow on the windshield. Now i have noticed that even if you select different vent directions, you only get air flow from the dashboard vents. No air to the floor or windshield, even if you select those locations for air flow. It seems like the dampers are are not opening/closing to redirect air flow. In the past I have already replaced the module (at that time the fan would not work at all).

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  • leemorgan79 Nov 21, 2008

    Even when I turn the defroster on, no air comes out where it should. It all blows out of the dash vents.

  • wkellyjr Nov 23, 2008

    fan will not blow thru defrosters to windshield

  • Anonymous Mar 28, 2014

    what can cause my air flow switch not to close the circuit

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Or it could be that you need to replace the air filter that is located underneith the dash on the passanger side slightly to the left

Posted on Dec 29, 2008

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You have a blend door problem under dash near center console are a series of actuators try gently moving rods manually

Posted on Dec 09, 2008

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Air Flow Control
Air flow control is accomplished in the following manner:
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vacuum control motor-i4bq0ig33y1522pr2d2rrkk3-2-0.gif

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The heat/vent/defrost control panel does not respond consistently. Specifically, pressing any of the buttons that is supposed to direct the airflow to heat/vent/defrost ports does nothing (the light for...


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prev.gif next.gif HEATING AND AIR CONDITIONING Refer to Section 1 for discharging and charging of the air conditioning system. The heating system provides heating, ventilation and defrosting for the windshield and side windows. The heater core is a heat exchanger supplied with coolant from the engine cooling system. Temperature is controlled by the temperature valve which moves an air door that directs air flow through the heater core for more heat or bypasses the heater core for less heat. Vacuum actuators control the mode doors which direct air flow to the outlet ducts. The mode selector on the control panel directs engine vacuum to the actuators. The position of the mode doors determines whether air flows from the floor, panel, defrost or panel and defrost ducts (bi-level mode).

Oct 28, 2010 | 1998 Oldsmobile Regency

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