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Air question

Discussion in 'Questions From New Drivers' started by dogchimp, Jul 21, 2013.

  1. Jul 21, 2013 #1
    dogchimp

    dogchimp Medium Load Member

    673
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    Jan 31, 2013
    0
    My truck has been parked since wensday afternoon, I went over today to check the qualcomm, and noticed that my air has leaked down to about 20 psi, it was at 125 when I parked it, I assume it is normal to lose some air when the truck is parked, but that seems like a large amount for being parked for 4 days, do I need to do a further search to find a possible air leak, or is this normal when the truck sits
     
    dogchimp, Jul 21, 2013
    dogchimp, Jul 21, 2013
    #1
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  3. Jul 21, 2013 #2
    Quickfarms

    Quickfarms Heavy Load Member

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    May 29, 2012
    Los Angeles, Ca
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    Air leaks out. Four days to leak down to 20 psi is not in my book a big issue. That is about 1 psi an hour, and significantly less than the limits for the applied air brake test.

    The real question is how much does it leak down over an hour?
     
    Quickfarms, Jul 21, 2013
    Quickfarms, Jul 21, 2013
    #2
  4. Jul 21, 2013 #3
    Adkhunter

    Adkhunter Light Load Member

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    85
    Jun 11, 2012
    Delmar, NY
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    After 4 days sitting like that I wouldn't be concerned. You will never make everything air tight. There will always be a very small leak somewheres. But I would just keep a eye and ear out for any leaks that could become worse over time. You might have a very tiny leak now that could turn into a big one over X amount of miles from vibrations and such. Just be attentive to your rig and you will be fine
     
    Adkhunter, Jul 21, 2013
    Adkhunter, Jul 21, 2013
    #3
  5. Jul 21, 2013 #4
    Raezzor

    Raezzor Quis custodiet ipsos custodes?

    1,412
    1,186
    Aug 1, 2009
    Columbus, OH
    0
    My general rule of thumb has always been if I can hear it, so can the DOT man. That kind of air loss over that long of a time isn't an issue, but if you can hear where the leak is why not get it fixed? If you can't hear a leak, no worries then. Just keep an eye on it and if it looks like it is getting worse start doing more thorough walkarounds.
     
    Raezzor, Jul 21, 2013
    Raezzor, Jul 21, 2013
    #4
  7. Jul 21, 2013 #5
    dogchimp

    dogchimp Medium Load Member

    673
    190
    Jan 31, 2013
    0
    thanks guys, I figured some leaking was normal, just wasnt sure how much, but sounds like Im just being paranoid
     
    dogchimp, Jul 21, 2013
    dogchimp, Jul 21, 2013
    #5
  8. Jul 21, 2013 #6
    flood

    flood Road Train Member

    4,168
    4,045
    Dec 25, 2010
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    trucking moving from a windy day sleeper and air ride leveling valve's could bleed the air out....
     
    flood, Jul 21, 2013
    flood, Jul 21, 2013
    #6
  9. Jul 21, 2013 #7
    teqntexas

    teqntexas Medium Load Member

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    Jan 25, 2012
    Ft. Worth Tx.
    0
    after 4 days i wouldn't worry @ it. but that's me.
     
    teqntexas, Jul 21, 2013
    teqntexas, Jul 21, 2013
    #7
  10. Jul 21, 2013 #8
    long_run

    long_run Light Load Member

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    Aug 29, 2012
    Paintsville,Kentucky
    0
    Normally my levers pop in 1.5 days so I wouldn't worry at all.
     
    long_run, Jul 21, 2013
    long_run, Jul 21, 2013
    #8
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