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AC blower

Discussion in '2nd Gen Tundras (2007-2013)' started by Grunt71, Jul 5, 2021.

  1. Jul 5, 2021 at 3:13 PM
    #1
    Grunt71

    Grunt71 [OP] New Member

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    I have a 2010 Tundra 5.7 and for a while the blower will fluctuate while on hi. I've not noticed changes in volts during operation. I'm r thinking the blower motor maybe going out? Any other advice on what it could be?
     
  2. Jul 26, 2021 at 12:20 PM
    #2
    markcarlson

    markcarlson New Member

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    I’m having the same issue, but it fluctuates on any speed. Replacing the blower motor worked in another vehicle that was doing the same, so I think that’s the way to go.
    I’m looking for a good aftermarket replacement motor. It seems the OEM ones don’t last and are weak.
     
  3. Jul 26, 2021 at 2:37 PM
    #3
    Grunt71

    Grunt71 [OP] New Member

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    Thanks markcalrson. I'm gonna attempt that this weekend and see what happens
     
  4. Jul 26, 2021 at 7:33 PM
    #4
    Danny3737

    Danny3737 New Member

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    The blower motor resistor is what sends the voltage to blower motor which adjusts the speeds. As you turn your fan speed switch, the resistor changes either reduces or increases the voltage to the blower motor. They are easy to replace and cost around $25
     
  5. Jul 27, 2021 at 6:41 AM
    #5
    markcarlson

    markcarlson New Member

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    Last edited: Jul 27, 2021
  6. Jul 27, 2021 at 7:06 AM
    #6
    TXTundra2722

    TXTundra2722 Pipe Hitters Union

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    This is a super easy swap on our trucks. I think i spent 30 minutes on this swap.... it took longer to get all my tools out and then put them away than the actual job itself. My blower was fluctuating too and now that I've put in a new blower.... it's actually blowing more air, (I think mine was on its way out for awhile). I suggest changing the in cabin filter as well during this.
     
  7. Jul 28, 2021 at 4:17 PM
    #7
    markcarlson

    markcarlson New Member

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    Replaced the blower a few mis ago. So far, so good! I think that must have been the issue, but it normally takes 30 mins or so of constantly running the AC before it would crap out. I’ll assume it fixed it for now.
     

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