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electric fan always on volvo d12 07

Discussion in 'Trucks [ Eighteen Wheelers ]' started by tomek, May 7, 2015.

Page 1 of 2
  1. May 7, 2015 #1
    tomek

    tomek Bobtail Member

    10
    0
    May 7, 2015
    Chicago, IL
    0
    my electric fan on my volvo d12 2007 is always on since I bought it 2 weeks ago. I've been told by mechanics that I have to replace it for new one it because it's broken and otherwise it'll overheat and I'll stop on the road. However I read that those electric fans are always on and wondering if to change it (1200$ plus labor) or it's okay. I've been running truck for over 2 weeks so far and always have temp 180 F so looks good. lemme know, please
     
    tomek, May 7, 2015
    tomek, May 7, 2015
    #1
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  3. May 8, 2015 #2
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,642
    Oct 11, 2010
    Borispol, Ukraine
    0
    It is not electric fan

    It is viscoclutch with control solenoid and fan speed sensor (hall effect sensor).

    This fan was introduced in 2002 on D12D engine on EU market and I'd say the same lifetime and durability like horton air controlled fan.

    The same fan was used on Paccar engines from 2001, Mack/Renault from 2000. They have different connectors, but the same wire colors and I used to swap connectors to fit fan from JY to any engine I want.

    To change fan type u have to reflash engine ECM.
     
    Pablo-UA, May 8, 2015
    Pablo-UA, May 8, 2015
    #2
  4. May 8, 2015 #3
    tomek

    tomek Bobtail Member

    10
    0
    May 7, 2015
    Chicago, IL
    0
    my mechanic is going to change it for regular air fan today. he said it's gonna cost 200$ extra for installation but I have no way out but do this. He said it's gonna take around 6 hours of labor
     
    tomek, May 8, 2015
    tomek, May 8, 2015
    #3
  5. Dec 16, 2015 #4
    val2029

    val2029 Bobtail Member

    6
    0
    Dec 16, 2015
    0
     
    val2029, Dec 16, 2015
    val2029, Dec 16, 2015
    #4
  7. Dec 16, 2015 #5
    val2029

    val2029 Bobtail Member

    6
    0
    Dec 16, 2015
    0
    Have 2006 D12 engine with same problem.Replaced electric fan cluch with new one but fan is still on.Seen mechanic everything seems fine ECM fine all wiring, but fan still on .?
     
    val2029, Dec 16, 2015
    val2029, Dec 16, 2015
    #5
  8. Feb 16, 2021 #6
    Jurias22

    Jurias22 Bobtail Member

    3
    0
    Oct 19, 2020
    0
    Anybody ever find what cuz the electric fan clutch to stay running all the time? Please let me know!
     
    Jurias22, Feb 16, 2021
    Jurias22, Feb 16, 2021
    #6
  9. Apr 17, 2021 #8
    fontes73

    fontes73 Bobtail Member

    7
    0
    Jan 5, 2012
    miami,fl
    0
     
    fontes73, Apr 17, 2021
    fontes73, Apr 17, 2021
    #8
  10. Apr 17, 2021 #9
    fontes73

    fontes73 Bobtail Member

    7
    0
    Jan 5, 2012
    miami,fl
    0
    Hi did you fix the problem,? I replaced the fan ,the temperature sensor, and fan still on ,only shut off if turn off engine but once engine gets hot fun kicks on ,temp goes down but never disengage .
     
    fontes73, Apr 17, 2021
    fontes73, Apr 17, 2021
    #9
  11. Jan 15, 2024 #9
    1693 small window

    1693 small window Bobtail Member

    5
    0
    Jul 16, 2020
    0
     
    1693 small window, Jan 15, 2024
    1693 small window, Jan 15, 2024
    #9
  12. Jan 15, 2024 #10
    1693 small window

    1693 small window Bobtail Member

    5
    0
    Jul 16, 2020
    0
    That's nice, Pablum . . . but how do you fix it . . . ??
     
    1693 small window, Jan 15, 2024
    1693 small window, Jan 15, 2024
    #10
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