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Canyon pick up AC/Heater fan switch problem

Discussion in 'Off Topic Threads' started by gnprts, Aug 25, 2010.

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  1. gnprts

    gnprts Member

    Joined:
    Jan 29, 1998
    Messages:
    133
    Most of the time but not always the fan will only run at the fastest speed. Today it ran at the slower speeds on one trip although this was short lived. What should I check first.. AC cools OK.

    Thanks
     
  2. halfmile

    halfmile Well-Known Member

    Joined:
    Jan 29, 1998
    Messages:
    15,642
    Location:
    Green Bay Wisconsin
    I have a similar problem on my LeSabre, fan is intermittent. Sometimes it start up after a few blocks.

    I found that a thump on the plastic housing just ahead of the middle passenger's feet cures it.

    So I assume I have a crappy plug connection, and will get after it when i get too disgusted. At least I knw what to go after now.

    HM
     
  3. KY_TRAP_DAD

    KY_TRAP_DAD Member

    Joined:
    Jan 29, 1998
    Messages:
    72
    I had exactly the same problem on a Chevy Colorado (same truck). As it turns out, each speed setting for the fan is controlled by a little resistor individually. They go bad and/or intermittent. The service guy said that he had seen a lot of those burn out. I forget how much it was, but the fix was quick and inexpensive (if it were a lot, i would remember). If you have a GM dealer with a good service dept, they can fix you up.
    Shelby
     
  4. gnprts

    gnprts Member

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    Jan 29, 1998
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    Hey .. Thanks guys ... I think it is time to call on my (auto body man) brother.
     
  5. mrskeet410

    mrskeet410 TS Member

    Joined:
    Jan 29, 1998
    Messages:
    3,064
    I had the same problem. A resister had to be replaced. They're not expensive, and they're not hard to replace; it just a takes a half hour to get to it, and a half hour to put everything back.

    PITA.
     
  6. over the hill

    over the hill Active Member

    Joined:
    Aug 30, 2007
    Messages:
    1,377
    Ive had problems with heater speeds on several GM cars.

    Mine were due to fried quick disconnect plugs around the engine compartment.

    Dont know where yours are located but you might give it look.



    Regards....Gerald
     
  7. letts

    letts TS Member

    Joined:
    Oct 31, 2006
    Messages:
    308
    My jeep needed a new resisitor to fix that problem,,$15.00 for the part if I remember correctly and about 1/2Hr. of my time.


    Letts
     
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