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  1. #1

    Default Fan Clutch running at 100%????

    I have a 2002 Trailblazer EXT 4wd. The fan clutch was running on high all the time. I thought the fan clutch was out. So i bought a new one. Didn't fix it. Fan is still running on high and service engine light is on but it comes on stays on and some days it goes off for a little while. It's still giving the same code. Low fan on with High fan running (1482 I think). I checked voltage to the plug, and it's getting voltage, relays are fine, fuses are fine? Anyone have this problem?????? Please Help!

  2. #2

    Default RE: Fan Clutch running at 100%????

    Usually it is the electronic clutch that fails that causes your problem, this time it appears that something elses has failed causing the computer to tell the fan to run, maybe a temperature sensor

  3. #3

    Default Fan Clutch Problem

    Try this link for ideas about the issue you are having:

    I just replaced the fan clutch in my 02 TB LTZ, 42,875miles, due to the loud fan noise. Seems to be running fine now.

  4. #4
    Legend unplugged's Avatar
    Join Date
    Sep 2006
    High Deserts of SoCal


    Gee, makes you fond of the old thermal fan clutches.
    I'm sure the electronic version saves a gallon or two of gas, but more expensive to service.
    There is no way to happiness....happiness is the way.:yipi:  _vXMYypuKMJFw671uF2ZPhjez_j-atRmcjM2zQKpQi1JSsB75/burb1.JPG
    High Desert SoCal
    93 K1500 burb (personal) 350 AT 3" Lift 250K+
    02 Honda Civic LX
    Looking for a 1990's Miata for an engine swap

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