Question What's Wrong with my Blower Motor

Discussion in 'Mobile Audio/Video & Electronics' started by diesel4camping, Dec 19, 2010.

  1. diesel4camping

    diesel4camping SDD Junior Member

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    Hey guys, this may sound kinda stupid, but my blower motor seems to be acting up. About a week ago my blower motor started to loose power, slowed down in rpms no matter the speed set, whenever I would turn the steering wheel to the right. That same evening I pulled into a store parking lot, shut it all down and when I came out it wouldn't come on, then as I exited the parking lot, I hit a small bump and it kicked on.

    I haven't lost complete power since then, but it still slows down anytime I turn the steering wheel to the right.

    By the way, it doesn't matter whether it is on cool or heat.

    I also plugged in my code reader and got nothing back.

    Any help would be appreciated. I'm stumped.
     
  2. bigrigr

    bigrigr Real trks hv 3 pdls

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    That is a good one, My first thought would be a burned out blower moter resistor. I've seen some w/the resistor windings burned through but still touching occasionally. Might fit with the changing over bumps. But the turning of the steering wheel is a mystery....... Maybe some wiring rubbing under the dash? Rubbing the steering shaft?
     
  3. JLDickmon

    JLDickmon ursus combibo

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    I'd go burnt wiring connection..
    pull the resistor & start there, both the connections are right in the same area..
     
  4. WD40

    WD40 Full Access Member

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    I would also check for a weak or lose ground.
    Doug
     
  5. Zmann ARGH

    Zmann ARGH Full Access Member

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    what year etc
     
  6. diesel4camping

    diesel4camping SDD Junior Member

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    Thanks for the replies guys.

    It is a 1999 F350 Crew Cab SRW.
     
  7. BIG JOE

    BIG JOE Full Access Member

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    And along with that.. Check all the multi-pin connectors, under the hood and under the dash.. that have to do with your Heat & AC controls. The ones under the hood are known to get corroded over time..with the blower on high, a good wiggle test, will sometimes indicate the one(s) that need cleaning ?

    Also.. The Blower Motors just git tired.. they're not the pricey.. and easy to R&R. :dunno

    Joe
     
  8. WD40

    WD40 Full Access Member

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    This is the price I found on Ford Parts, good luck
    Blower motor
    99-07 $130.38 $69.11
     
  9. diesel4camping

    diesel4camping SDD Junior Member

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    I went out earlier this evening and was getting ready to replace the resistor, wiggled some wires and got in the truck to see if I had removed the correct plug and guess what? The blower was working just fine with the plug I had undone disconnected.

    So, I guess I didn't have the correct plug unplugged from what I thought was the resistor.

    Put all back together and will try and trouble shoot during daylight hours.

    Anyone have a pic of the resistor and its location. I used a pic and description from another thread, but that wasn't the correct plug. Didn't even resemble the one I bought.

    Would having the blower resistor disconnected still allow the blower to function. I wouldn't think so, but it is me, and anything that shouldn't does and vise versa.

    Thanks again for all the input so far.
     
    Last edited: Dec 21, 2010
  10. JLDickmon

    JLDickmon ursus combibo

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    it's going to have high only
     

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