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Alert Air Temp Circuit High

Discussion in 'Freightliner Forum' started by Verdel, Dec 6, 2014.

  1. Dec 6, 2014 #1
    Verdel

    Verdel Medium Load Member

    586
    130
    Oct 26, 2013
    0
    The truck is Freightliner Columbia 2007, DD ser 60 - 14L. I have a ProDriver DC display that is showing this message from time to time. When the message showing up, the yellow check engine light is on and the radiator Fan switches on. After a few minutes everything is back to normal. The water temp. is normal, oil temp. normal. I suspect a bad sensor somewhere.

    Are there any air sensors around the turbo or some other place ?
     
    Verdel, Dec 6, 2014
    Verdel, Dec 6, 2014
    #1
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  3. Dec 6, 2014 #2
    QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,780
    1,726
    Jun 14, 2009
    romulus,mi
    0
    check the black,plastic air inlet temp. sensor on the air filter housing tube.it likes to come unplugged.if o.k.check the wires going to it.check as far as you can.they like to rub on the front of engine by the a/c compressor.sensor is hardly ever the problem.go figure it only costs like $15 and takes 30 seconds to replace.good luck.
     
    QUALITYTRUCK, Dec 6, 2014
    QUALITYTRUCK, Dec 6, 2014
    #2
    Cheese177, Verdel and train777 Thank this.
  4. Dec 6, 2014 #3
    bbigcnote

    bbigcnote Light Load Member

    194
    107
    Dec 29, 2008
    northeast, missouri
    0
    my o6 classic has this problem once in awhile too. i unplug and plug back in the ecm water temp sensor and it fixes it. that sensor is on right hand rear of head there are two side by side on is for temp gauge other is for ecm. the ecm sensor on my head is the furthest back
     
    bbigcnote, Dec 6, 2014
    bbigcnote, Dec 6, 2014
    #3
    Verdel and train777 Thank this.
  5. Dec 7, 2014 #4
    train777

    train777 Bobtail Member

    49
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    Sep 9, 2014
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    I had the same problem last year, but sold out the truck. Good info.
     
    Last edited: Dec 7, 2014
    train777, Dec 7, 2014
    train777, Dec 7, 2014
    #4
  7. Dec 7, 2014 #5
    Verdel

    Verdel Medium Load Member

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    Oct 26, 2013
    0
    Thank's for the suggestions, I will check ASAP.
     
    Verdel, Dec 7, 2014
    Verdel, Dec 7, 2014
    #5
  8. Jan 28, 2015 #6
    Verdel

    Verdel Medium Load Member

    586
    130
    Oct 26, 2013
    0
    This problem is caused by bad Air Temp sensor. Replaced Mine and now is all good. The sensor is screwed in the intake manifold, it is made out of plastic. Cost $17.
     
    Verdel, Jan 28, 2015
    Verdel, Jan 28, 2015
    #6
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