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VED 12 05 electric visco fan first gear wont kick in

Discussion in 'Trucks [ Eighteen Wheelers ]' started by chiljig, May 23, 2015.

Page 1 of 3
  1. May 23, 2015 #1
    chiljig

    chiljig Bobtail Member

    40
    2
    May 5, 2013
    0
    On my 05 volvo ved 12 ive got electric fan clutch. Ive change fan clutch, entire harness and still problem not solved. fan clutch first gear wont engage. in the beginning first gear worked and after changing the ecu second gear workes but first one doesnt. so now my my truck overheat. i read this vltage on my fan connectors

    1 -------------2-----------3
    0.2 v------ 5.9 v------ 5.9v

    ------ 5 ------------6
    ------- 0.2v-------12v
    anyone knows how to manually override fan clutch or any other solution in mind? thanks
     
    chiljig, May 23, 2015
    chiljig, May 23, 2015
    #1
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  3. May 23, 2015 #2
    benrab

    benrab Medium Load Member

    326
    238
    Apr 5, 2015
    Quebec ,Canada
    0
    Do you have picture of your fan clutch only to figure out which model of fan clutch exactly you have ?
    Ben
     
    benrab, May 23, 2015
    benrab, May 23, 2015
    #2
    chiljig Thanks this.
  4. May 24, 2015 #3
    chiljig

    chiljig Bobtail Member

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    May 5, 2013
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    will be posted on Tuesday.
     
    chiljig, May 24, 2015
    chiljig, May 24, 2015
    #3
  5. May 24, 2015 #4
    chiljig

    chiljig Bobtail Member

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    May 5, 2013
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    well its very strange when truck is not moving fan works fine both speeds are working properly. soonest truck start moving first fan speed disangage. i have no clue what going on.
     
    chiljig, May 24, 2015
    chiljig, May 24, 2015
    #4
  7. May 24, 2015 #5
    benrab

    benrab Medium Load Member

    326
    238
    Apr 5, 2015
    Quebec ,Canada
    0
    What is the exact model of your truck ?
    Ben
     
    benrab, May 24, 2015
    benrab, May 24, 2015
    #5
  8. May 24, 2015 #6
    chiljig

    chiljig Bobtail Member

    40
    2
    May 5, 2013
    0
    Volvo ved12 2005
     
    chiljig, May 24, 2015
    chiljig, May 24, 2015
    #6
  9. May 24, 2015 #7
    benrab

    benrab Medium Load Member

    326
    238
    Apr 5, 2015
    Quebec ,Canada
    0
    I means VNL, VNM, VHD all of them can have a Volvo VED12 engine in North America market ?
    Which one do you have ? Or do you have the last 8 numbers and letter of your Vin ?
    Ben
     
    benrab, May 24, 2015
    benrab, May 24, 2015
    #7
  10. May 24, 2015 #8
    chiljig

    chiljig Bobtail Member

    40
    2
    May 5, 2013
    0
    i believe its VNL last 8 of the vin 4n365717. thanks for staying interesting
     
    chiljig, May 24, 2015
    chiljig, May 24, 2015
    #8
  11. May 24, 2015 #9
    benrab

    benrab Medium Load Member

    326
    238
    Apr 5, 2015
    Quebec ,Canada
    0
    Base on Volvo Main Frame your truck has been built on 10/10/2003 and it's a 2004 (look at the 10th position (4) of the 17( Full Vin)
    I will do some research tomorrow and i will come back to you as soon as i can about the fan clutch.
    Ben
     
    benrab, May 24, 2015
    benrab, May 24, 2015
    #9
    chiljig Thanks this.
  12. May 25, 2015 #10
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,640
    Oct 11, 2010
    Borispol, Ukraine
    0
    Stop guys!

    This clutch is PWM controlled

    so it may engage smoothly and u cant feel how does it icrease fan speed, till u hear full speed of fan,

    This clutch got buit in hall effect speed sensor and if fan speed is out of range and cant be ajusted by ECM it throws fault code.

    If no fan related fault code - keep driving truck
     
    Pablo-UA, May 25, 2015
    Pablo-UA, May 25, 2015
    #10
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