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Fan problem

Discussion in 'Peterbilt Forum' started by Beachdreamer, Jan 14, 2016.

  1. Jan 14, 2016 #1
    Beachdreamer

    Beachdreamer Bobtail Member

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    Nov 20, 2015
    0
    Fan started staying on all the time on 2012 isx 15 engine this morning after setting up for a couple weeks. Anyone ever had this happen?
     
    Beachdreamer, Jan 14, 2016
    Beachdreamer, Jan 14, 2016
    #1
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  3. Jan 14, 2016 #2
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    Jun 14, 2009
    romulus,mi
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    Start truck. build air to 125 p.s.I. Turn engine off. Turn key to "on" position. With piece of pipe/metal rod or such, put end of it on fan clutch and with hammer give a couple of hits. You will see it disengage and spin freely. Good luck.
     
    QUALITYTRUCK, Jan 14, 2016
    QUALITYTRUCK, Jan 14, 2016
    #2
    Beachdreamer Thanks this.
  4. Jan 16, 2016 #3
    Beachdreamer

    Beachdreamer Bobtail Member

    3
    0
    Nov 20, 2015
    0
    Thank you I give it a try. Truck has been sitting for a couple of weeks.
     
    Beachdreamer, Jan 16, 2016
    Beachdreamer, Jan 16, 2016
    #3
  5. Jan 18, 2016 #4
    Bean Jr.

    Bean Jr. Road Train Member

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    Mar 30, 2014
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    It also could be a sensor. If the fan clutch sensor reads hot, it will keep the fan on.
     
    Bean Jr., Jan 18, 2016
    Bean Jr., Jan 18, 2016
    #4
    Beachdreamer Thanks this.
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