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Visco Behr clutch fan 19094

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Steve n, Jun 20, 2020.

  1. Jun 20, 2020 #1
    Steve n

    Steve n Bobtail Member

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    Jun 20, 2020
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    Have 2009 Volvo truck with a visco Behr fan clutch 19094, that doesn't engage when needed.have d13 motor. I have replaced clutch fan, temp, switch, new air conditioning pressure switch, I have been still operating by unplugging clutch fan, then will it fully engage.is this clutch controled by ecm? been wrestling with this problem for a year any suggestions would be appreciated.thanks Steve
     
    Steve n, Jun 20, 2020
    Steve n, Jun 20, 2020
    #1
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  3. Jun 20, 2020 #2
    bad-luck

    bad-luck Road Train Member

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    If you unplug the fan, and it operates then the fan is working ok. The fan is controlled by the ECM. could be an I issue with your with the ECM. You are going to have to get someone with a computer to go into the ECM and manually activate the fan. If that works them your problem is not with the ECM. you could install a manual fan switch
     
    bad-luck, Jun 20, 2020
    bad-luck, Jun 20, 2020
    #2
  4. Jun 20, 2020 #3
    Steve n

    Steve n Bobtail Member

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    Had someone do a diagnostic, and was told ecm, didn't no I had a fan clucth,he said possibly, at some point it was deleted from system. If I could get information on how to install manual fan switch,I am all in.thanks
     
    Steve n, Jun 20, 2020
    Steve n, Jun 20, 2020
    #3
  5. Jun 20, 2020 #4
    bad-luck

    bad-luck Road Train Member

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    Basically, you would need to either cut the plug off that plugged in to the plug to the fan. There should be two wires, a ground and a hot wire. You can ground the ground to the engine/frame. Run the hot wire to the cab, and install a toggle switch. If you google it, you can find step by step instructions and find it on YouTube as well
     
    bad-luck, Jun 20, 2020
    bad-luck, Jun 20, 2020
    #4
  7. Jun 20, 2020 #5
    Steve n

    Steve n Bobtail Member

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    Jun 20, 2020
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    It must have power going to it because when I unplug it there is no power to it and it will engage. But I follow you train of thought, it has a five pin connection if I could find out which wire out of the five turns power off and put a on off switch on it then I think it would be a manual on off switch. Thanks.
     
    Steve n, Jun 20, 2020
    Steve n, Jun 20, 2020
    #5
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