Fan problem

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

  1. Beachdreamer

    Beachdreamer Bobtail Member

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    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
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  2. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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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
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  3. Beachdreamer

    Beachdreamer Bobtail Member

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    Thank you I give it a try. Truck has been sitting for a couple of weeks.
     
    Beachdreamer, Jan 16, 2016
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  4. Bean Jr.

    Bean Jr. Road Train Member

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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
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