L. Ross 4/25/2011

2001 Mercury Mountaineer Base 8Cyl5.0L - Body & Interior

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Automatic climate control fans runs only on high speed.

The automatic C/C system fan speed only operates on high. It initially seemed to short into "on mode" despite being in the "off" position (the fan wouldn't shut off). After sitting for two days in the off position, the fan finally shut off. Now the fan only comes on when turned to high.

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  yboy82 4/25/2011

  Sounds like your blower motor resistor is already faulty.

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  yboy82 4/25/2011

  Also check the answer of the other question that you've posted http://www.automd.com/.../

  

  L. Ross 4/26/2011

  Thanks for the advice. I'll have to have it looked into. Had the sam e problem with a Nissan recently.