Question about 2005 Chrysler Pacifica

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2005 Pacifica fan will not work on ac, defrost or heat. Fan for rear DOES work. Sometimes I can beat on dash and fan will work for a short time Day or two.

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  • edfrantz Nov 08, 2010

    I also read that I would have to replace the control module behind the front switch panel. I can beat on dash and it will work for a while and blower motor is nowhere near control panel

  • edfrantz Nov 08, 2010

    Motor will work at all speeds sometimes but not at any speed most of the time. Does not sound like a resistor as my experience with resistors are that when they fail it is complete. I would think it would be a bad connection somewhere. I was hoping someone has had this same problem before. Thanks ed

  • edfrantz Nov 08, 2010

    I took the control module apart and do not see any cracks. I suspect a bad connection so I touched up some solder points but there are hundreds of them. Do you have any idea where this problem could be on the board. I suspect a bad connection somewhere. My experience with electronics is that if a part goes bad it would not ever work intermittantly. Any suggestions where I can get a used or rebuilt one. Thanks Ed

  • edfrantz Nov 09, 2010

    Thanks. willdo ed

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  • Chrysler Master
  • 17,970 Answers

You replaced the blower motor resistor? It's located behind the passenger-side in-dash glove box. That's what allows you to control the fan speed...

  1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
  2. Remove or disconnect the following:
    • Negative battery cable
    • Passenger side cowl trim panel
    • Carpet to access the front upper screw that secures the air inlet housing
    • Recirculation door actuator
    • Recirculation door actuator wire lead from the routing clip located on the lower air inlet housing and position the wire lead aside
    • Blower motor wire lead connector from the blower motor resistor or power module, depending on application. Lower Air Inlet Housing

    • One screw (from the top) that secures the lower air inlet housing to the upper air inlet housing
    • Four screws (from the bottom) that secure the lower air inlet housing to the upper air inlet housing and remove the lower HVAC housing Blower Motor Wire Lead Grommet

  3. Feed the rubber blower motor wire lead grommet through the opening in the lower air inlet housing.
  4. Push the blower motor wire lead through the opening in the lower air inlet housing and remove the lower air inlet housing from the vehicle.
  5. Place the recirculation-air door as needed to access and remove the three screws that secure the blower motor to the lower half of the HVAC housing.
  6. Lightly bend the recirculation air door far enough down to remove the blower motor and wheel from the HVAC housing. Blower Motor Mounting Tabs

  7. Remove the blower motor and wheel from the HVAC housing. Make a note of the location of the blower motor mounting tabs.
To Install:
  1. Install or connect the following:
    • Blower motor and wheel to the lower half of the HVAC housing and line up the blower motor mounting tabs to the correct location on the HVAC housing
    • Blower motor and wheel into the HVAC housing by lightly bending the recirculation-air door far enough down
    • Three screws that secure the blower motor to the HVAC housing by positioning the recirculation-air door as needed
      1. Torque to: 17 inch lbs. (2 Nm)
    • Blower motor wire lead through the opening in the lower air inlet housing and seat the rubber grommet into the lower air inlet housing
    • Recirculation-air door pivot into the lower air inlet housing
    • Four screws (from the bottom) that secure the lower air inlet housing to the upper air inlet housing and the lower HVAC housing
      1. Torque to: 17 inch lbs. (2 Nm)
    • One screw (from the top) that secures the lower air inlet housing to the upper air inlet housing
      1. Torque to: 17 inch lbs. (2 Nm)
    • Blower motor wire lead connector to the blower motor resistor or power module, depending on application
    • Recirculation door actuator wire lead into the routing clip located on the lower air inlet housing
    • Recirculation door actuator
    • Carpet
    • Passenger side cowl trim panel
    • Negative battery cable
  2. Perform the heater-A/C control calibration procedure.

Hope helps; keep us updated.



Posted on Nov 08, 2010

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  • Chrysler Master
  • 6,826 Answers

OK, the blower motor has a bad spot on it and it will have to be replaced.

Posted on Nov 08, 2010

  • Duane Wong
    Duane Wong Nov 08, 2010

    Actually, you 'hit' on something that might be the cause, the control module. I stand corrected.



    I have a 1999 Ford Expedition that has an odometer that gets dim (it's a fluorescent display). Sometimes, when it gets dim and can't see it, I have to admit I hit the dash and sometimes it comes back. Could be a cracked circuit board for the electronics that when hit comes back intermittently.

  • Duane Wong
    Duane Wong Nov 09, 2010

    I would go to a salvage yard to get another module.

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