2003 Ford Taurus Blower Only on High

FORD TAURUS
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MRDCSE
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I have a 03 ford taurus with 40k, last week the blower (fan) for heat/ac etc only works on the highest setting-nothing at all on the others. How can I fix this, thanks to all replies
Mar 20, 2007 at 9:56 AM
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SIRGIBBY
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  • 32 POSTS
Sounds like a bad switch to me.. Change that and see what happens
Mar 20, 2007 at 6:07 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
[quote:b4023dfb07="MRDCSE"]I have a 03 ford taurus with 40k, last week the blower (fan) for heat/ac etc only works on the highest setting-nothing at all on the others. How can I fix this, thanks to all replies[/quote:b4023dfb07]


Find the resistor and change it -the resistor's job is to control the speed setting by increasing/decreasing resistances to the blower motor.
Mar 20, 2007 at 6:31 PM
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BROO118
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This happened on my 90 wagon. There is a resistor pack that is attached to fan housing behind the glove box. One screw holds this plastic housing in place. You will find three coils of bare wire, and one small resistor. Test the small encased resistor with a meter, and if it measures mega ohms it is open. Buy a replacement resistor pack.
Apr 2, 2007 at 11:36 AM

Suggested Repair

Replace the blower motor resistor (resistor pack). It controls the lower fan speeds by changing resistance to the blower motor; high speed often bypasses it, so a failed resistor leaves only high working.

Conversation Summary

The owner of a 2003 Ford Taurus reported the heat/AC blower works only on the highest setting and not on the other speeds. One reply suggested a bad switch. The expert advised locating and replacing the blower motor resistor, which controls speed by varying resistance to the motor. Another owner described a similar failure on a 1990 wagon, where the resistor pack is behind the glove box on the fan housing and can be tested and replaced.

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