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Air pressure won’t go above 70

Discussion in 'Questions From New Drivers' started by Drama304, Dec 14, 2020.

  1. Dec 14, 2020 #1
    Drama304

    Drama304 Bobtail Member

    11
    14
    Oct 26, 2020
    0
    What’s going on drivers.
    Woke up this morning and my air pressure won’t go above 70. Also I’m driving a 10 speed freightliner cascadia and when I flip from Lo to Hi, the truck won’t switch so I can get into 6th gear. Need some help. Are my lines frozen?
     
    Drama304, Dec 14, 2020
    Drama304, Dec 14, 2020
    #1
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  3. Dec 14, 2020 #2
    AKDoug

    AKDoug Medium Load Member

    323
    802
    Mar 21, 2018
    0
    Sounding like you're froze up. The Lo to Hi issue also points at frozen lines. What's the outside temp where you're at right now? Is there air pouring out of the bottom of the air dryer or anywhere else?
     
    AKDoug, Dec 14, 2020
    AKDoug, Dec 14, 2020
    #2
  4. Dec 15, 2020 #3
    Ridgeline

    Ridgeline Road Train Member

    22,440
    117,055
    Dec 18, 2011
    Michigan
    0
    You are driving with low air pressure?

    seriously?
     
    Ridgeline, Dec 15, 2020
    Ridgeline, Dec 15, 2020
    #3
    ZVar Thanks this.
  5. Dec 15, 2020 #4
    spindrift

    spindrift Road Train Member

    3,233
    12,905
    Dec 2, 2014
    Texas
    0
    C'mon Ridge. I'm sure he's just letting us know what kind of ride he has.

    At least I hope so. ;)
     
    spindrift, Dec 15, 2020
    spindrift, Dec 15, 2020
    #4
  7. Dec 15, 2020 #5
    AModelCat

    AModelCat Road Train Member

    29,250
    159,855
    Jul 7, 2015
    Canuckistan
    0
    Considering the vast majority of trucks don't allow air to flow to accessories until approximately 90 PSI, your only issue is an air buildup problem. 99.9999999% chance there is no issue with the transmission.
     
    AModelCat, Dec 15, 2020
    AModelCat, Dec 15, 2020
    #5
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