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Blower Motor Resistor!?!?

Discussion in 'Performance and Tuning' started by tacogirl1189, Apr 18, 2011.

  1. Apr 18, 2011 at 6:02 PM
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    tacogirl1189

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    tacogirl1189 [OP] Member

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    I've been having issues with my AC/heat only working on high, and not even operating on low, med, or med-high in my 06 PreRunner. After doing research, I found it was a problem with blower motor resistor. After taking it out, I noticed the wiring connecting to the resistor was burnt. I've read that many other people with Tacomas blow through these resistors quickly. Has anyone else with problems concerning the blower motor noticed this issue with the wiring in their Taco?! :confused:

    wire1.jpg
    wire2.jpg
    wire3.jpg
     
    tacogirl1189, Apr 18, 2011
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  2. Apr 18, 2011 at 6:07 PM
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    98tacoma27

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    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    The terminal that is burnt is the High Speed setting.
     
    98tacoma27, Apr 18, 2011
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  3. Apr 18, 2011 at 6:15 PM
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    tacogirl1189

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    tacogirl1189 [OP] Member

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    Ok, so what makes that happen?
     
    tacogirl1189, Apr 18, 2011
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  4. Apr 18, 2011 at 6:27 PM
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    98tacoma27

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    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    That's a direct line from the 50A heater fuse, through the heater relay, to the motor, through the switch and finally to ground. The only thing I could think of is extended use on the high setting? Maybe the blower motor is going bad?

    I had a Pontiac that would eat them like candy.


    Here is the electrical print
     
    98tacoma27, Apr 18, 2011
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  5. Apr 19, 2011 at 7:21 AM
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    skytower

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    skytower Well-Known Member

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    Hitch and wiring, aux back-up light, rear strobe lights, radio and underseat sub.
    If your filter is clogged, the blower motor will have to work harder. It will draw more amps and cause that. It will also burn out your resistors.
     
    skytower, Apr 19, 2011
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  6. Apr 19, 2011 at 7:22 AM
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    tacogirl1189

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    tacogirl1189 [OP] Member

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    Thanks for all the help, that print cleared things up for me.
     
    tacogirl1189, Apr 19, 2011
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  7. Apr 19, 2011 at 7:28 AM
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    tacogirl1189

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    tacogirl1189 [OP] Member

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    I have the filters changed every time I get it serviced. well at least they say they do....Wheres the location of the cabin filter? ill check myself.
     
    tacogirl1189, Apr 19, 2011
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  8. Apr 19, 2011 at 7:32 AM
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    skytower

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    skytower Well-Known Member

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    Hitch and wiring, aux back-up light, rear strobe lights, radio and underseat sub.
    It's a little cover, behind the glove box, right above where you found the resistor. Look for debris in the blower cage while you have the filter out.
     
    skytower, Apr 19, 2011
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  9. Apr 19, 2011 at 9:43 PM
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    tacogirl1189

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    tacogirl1189 [OP] Member

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    Thanks!
     
    tacogirl1189, Apr 19, 2011
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