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no secondary air.

Discussion in 'Peterbilt Forum' started by dubtownmechanic, Nov 19, 2014.

  1. Nov 19, 2014 #1
    dubtownmechanic

    dubtownmechanic Bobtail Member

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    Nov 19, 2014
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    2013 peterbilt is not getting secondary air. primary airs up to 125 as it should secondary gets none. tried idling up and still nothing. thought maybe the lines were froze left tractor in the shop infront of multiple heaters over night primary air tank blew out all the condensation secondary still had no air. I'm now at a loss. I'm new to working on these trucks and just dont know where to go from here. any advice would be appriciated.
     
    dubtownmechanic, Nov 19, 2014
    dubtownmechanic, Nov 19, 2014
    #1
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  3. Nov 19, 2014 #2
    Hammer166

    Hammer166 Crusty Information Officer

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    There's a check valve on the supply to that tank, must be stuck closed.
     
    Hammer166, Nov 19, 2014
    Hammer166, Nov 19, 2014
    #2
  4. Nov 19, 2014 #3
    1boater12

    1boater12 Bobtail Member

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    Nov 19, 2014
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    Also check to make sure its really not getting air. You dont have a a gauge problem do you?
     
    1boater12, Nov 19, 2014
    1boater12, Nov 19, 2014
    #3
  5. Nov 21, 2014 #4
    dubtownmechanic

    dubtownmechanic Bobtail Member

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    Nov 19, 2014
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    no gauge problems, the air tanks arent getting any air at all. i havent had an oppertunity to try the other suggestion yet having 6 other trucks to work on but i will as soon as i get a chance. thank you both.
     
    dubtownmechanic, Nov 21, 2014
    dubtownmechanic, Nov 21, 2014
    #4
  6. Dec 28, 2020 #6
    resistol

    resistol Bobtail Member

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    Dec 28, 2020
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    wheres the check value located
     
    resistol, Dec 28, 2020
    resistol, Dec 28, 2020
    #6
  7. Dec 28, 2020 #6
    resistol

    resistol Bobtail Member

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    Dec 28, 2020
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    I've got the same problem this evening, I got a 2017 587 with #1 tank full of air and #2 dead empty of air, I parked it it was totally functional. please help me, tried tapping on the value on the fire wall, no response at all, still being played here.
     
    resistol, Dec 28, 2020
    resistol, Dec 28, 2020
    #6
  8. Dec 28, 2020 #7
    Hammer166

    Hammer166 Crusty Information Officer

    6,940
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    Aug 18, 2007
    ~8600+' and loving it!
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    I think I saw on another thread a while back that Pete has the check valves in the dryer. Not going to swear it was Pete, but I think it was.
     
    Hammer166, Dec 28, 2020
    Hammer166, Dec 28, 2020
    #7
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