AC condensation drainage

Discussion in 'Peterbilt Forum' started by Russjac, Aug 20, 2012.

  1. Russjac

    Russjac Light Load Member

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    Apr 3, 2012
    Las Vegas
    0
    I drive a 587 company truck and I am getting water seepage from the edges of the rubber flooring and the padding is soaking wet. The only thing I can think of that is causing this is condensation from the AC not draining properly. I can feel the padding is soaked under a large portion of the rubber flooring. I am also getting water in the fuel messages intermittently on the dash. Are these related? Where is the AC drain at so I can check if it is clogged? What else could be causing this amount of liquid to form, as I have not been in any rainstorms for over a week?
     
    KB3MMX Thanks this.
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  3. spydertrucker

    spydertrucker Bobtail Member

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    Aug 8, 2012
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    alot of the times there is a drain tube that exits through the floor, look underneath for hoses and holes where there may have been a hose going through. sometimes the drain tube and be plugged up and needs a cleaning.
     
    KB3MMX Thanks this.
  4. olphart

    olphart Medium Load Member

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    Feb 15, 2009
    Minden,LA
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    The drain tube is under the hood above the motor all the way at the back. There's two of them, little copper pipes with rubber tips. It really helps if the motor is cool before you try to reach back there.
     
    The4kingsway Thanks this.
  5. DaVaR

    DaVaR Bobtail Member

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    1
    Jul 24, 2013
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    Thanks for info. Found the drain tube and thumped it till all trash was out. Water poured out and my floors are now dry. Well still have to air out padding.

    Sad thing is that I just had the dealer "fix" the clog a couple days before.

    All is well and thanks again.
     
    KB3MMX Thanks this.
  6. Trucker 1996

    Trucker 1996 Bobtail Member

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    Sep 8, 2018
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    I have a 1996 Peterbilt how do you clean those
     
  7. adayrider

    adayrider Road Train Member

    1,289
    1,731
    May 7, 2018
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    On your pete its on passengers side fir wall. Rubber hose around where A/C and heater hoses go through. It will be a rubber hose going down around frame rail with nothing on the end. You might have to pull glove box and panel and clean the inside of heater box out. If you pull the panel, take a drill bit/drill and open the hole in plastic 1 size so it drain easier/better.
    If you need a pic of hose I can try to post one or email it for sure
     
    KB3MMX and Klleetrucking Thank this.
  8. Stepdeckenny

    Stepdeckenny Bobtail Member

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    Jun 9, 2019
    0
     
  9. Stepdeckenny

    Stepdeckenny Bobtail Member

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    Jun 9, 2019
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    I have a t660 2012 Cummins isx
    Just changed o rings on the lines and fan clutch. For some reason it blows cold then starts blowing maybe 4 degrees lower and smells humid. Then it gets colder again and just keeps doing it over and over. Took it back to get vacuumed and recovered again. Still Same thing. What could’ve gone wrong.
     
  10. Sarge88496

    Sarge88496 Bobtail Member

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    Aug 15, 2022
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    - 2012 389 glider w/ 60 Series -

    for some reason mine won’t drain unless the truck is shut off. Passenger floor is soaked. No drip while running. I shut it off and it pours out. Any ideas?
     
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