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AC doesn't work while idling Peterbilt 579

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Edjahman, Aug 3, 2018.

Page 3 of 5
  1. Aug 3, 2018 #21
    Hammer166

    Hammer166 Crusty Information Officer

    7,458
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    Aug 18, 2007
    ~8600+' and loving it!
    0
    Yes, sir. I hope that'll help.
     
    Hammer166, Aug 3, 2018
    Hammer166, Aug 3, 2018
    #21
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  3. Aug 3, 2018 #22
    Edjahman

    Edjahman Medium Load Member

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    Apr 2, 2013
    0
    I'd swear that they don't exist on this tractor. I traced the lines right from the block and I don't see a shutoff. Bizzare. I'll try tomorrow again when the sun is up.

    Thank you for your reply.
     
    Edjahman, Aug 3, 2018
    Edjahman, Aug 3, 2018
    #22
    Hammer166 Thanks this.
  4. Aug 4, 2018 #23
    pushbroom

    pushbroom Road Train Member

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    Sep 1, 2012
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    There wont be shutoffs on them. None installed from factory
     
    pushbroom, Aug 4, 2018
    pushbroom, Aug 4, 2018
    #23
    SAR and Oxbow Thank this.
  5. Aug 4, 2018 #24
    Edjahman

    Edjahman Medium Load Member

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    Apr 2, 2013
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    Thank you! I didn't think I was crazy or stupid. Maybe I can gently pinch off the hoses just while I'm parked to see if it helps?

    Otherwise I'm just taking the #### thing to Peterbilt next week because the TA shop is basically useless.
     
    Edjahman, Aug 4, 2018
    Edjahman, Aug 4, 2018
    #24
  7. Aug 4, 2018 #25
    pushbroom

    pushbroom Road Train Member

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    Sep 1, 2012
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    You can try it. Either it works or it doesnt. Peterbilt would be good to take it to due to the HVAC module that controls all the actuators/ ac compressor
     
    pushbroom, Aug 4, 2018
    pushbroom, Aug 4, 2018
    #25
  8. Aug 4, 2018 #26
    Edjahman

    Edjahman Medium Load Member

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    Apr 2, 2013
    0

    Yeah I figured that Peterbilt is the best place as usual!

    At least the weather isn't too bad right now!

    Take care!

    Ty everyone for your feedback!
     
    Edjahman, Aug 4, 2018
    Edjahman, Aug 4, 2018
    #26
  9. Aug 4, 2018 #27
    Edjahman

    Edjahman Medium Load Member

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    Apr 2, 2013
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    I see that these systems are much more complex then I realized.

    My bad, as they say!
     
    Edjahman, Aug 4, 2018
    Edjahman, Aug 4, 2018
    #27
  10. Aug 4, 2018 #28
    Edjahman

    Edjahman Medium Load Member

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    Apr 2, 2013
    0
    Blend door actuator....interesting stuff!
     
    Edjahman, Aug 4, 2018
    Edjahman, Aug 4, 2018
    #28
  11. Aug 4, 2018 #29
    Edjahman

    Edjahman Medium Load Member

    648
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    Apr 2, 2013
    0
    Does anyone know how to reset the blend doors? A mechanic said you can do that on a Freightliner but I can't find anything on Google for doing that on a Peterbilt.
     
    Edjahman, Aug 4, 2018
    Edjahman, Aug 4, 2018
    #29
  12. Aug 4, 2018 #30
    buddyd157

    buddyd157 Road Train Member

    13,564
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    May 25, 2017
    under a shade tree
    0
    do you have the owner's manual in the truck?

    maybe it might say something about that in there?
     
    buddyd157, Aug 4, 2018
    buddyd157, Aug 4, 2018
    #30
    Edjahman Thanks this.
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