Question about 2003 Ford Expedition

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Clicking noise behind right side second row seat

When I select roof or floor heat/air vents there is a clicking noise and a slight electrical burning smell, I keep it on floor now and there isn't a problem but when I switch it to roof vents is when I hear and smell it, any ideas??

Thanks
Bob

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  • alkadeem Nov 27, 2008

    Hi, I have the same problem, I removed the R/H rear panel to access the auxiliary (rear) AC, and found that this noise is coming from the AC door actuator (temp blend) and the blend dooe actuator, they are both like a white color unit and has an electrical plug connected to it, usually the gears inside are broken, I am thinking to replace those 2, but still researching to see if the new ones might break too due to another problem. hole this helps.

  • sjj9835 Dec 11, 2008

    I have the same problem in my 2005 Expedition with the clicking noise coming from the rear a/c and heater unit. The sound lessens if I put the rear air pointing "downward" vs "face forward". I initially heard something break off like part of a fan and it stopped making this noise, but recently started back up. I thought it might be a faulty, stuck thermostat.

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My dealer called it the rear air system's ACTUATOR. Had them replace it and problem was solved.

Posted on Jun 21, 2009

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I had the same Problem on my 2003 Ford Expedition Eddie Bauer. I bought the part for the Rear Temperature Blend Door Motor and had it installed and the problem was gone. I bought it mail order from this Ford dealership and the price was much lower than in my area:
directfordparts@gaudinford.com
directfordparts@gaudinford.com


Posted on Dec 22, 2008

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03f81ff.gif
Item Part Number Description 1 — Air inlet door 2 — Temperature blend door 3 — Headliner airflow 4 — Auxiliary mode door 5 — Floor airflow 6 18476 Heater core 7 19860 Evaporator core 8 19805 Blower motor
The auxiliary A/C and heating system has the following features:
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I would say the auxiliary mode door (#4) electric motor is not wokring.

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Auxiliary Blend Door Actuator —Air Distribution Removal and Installation
  1. Remove the RH quarter trim panel cup holder and access panel.
  1. Remove the screws.
  1. Disconnect the blend door actuator electrical connector.
  1. To install, reverse the removal procedure.

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