Something is making my Cascadia move at night when i'm in sleeper

Discussion in 'Freightliner Forum' started by Wickedchicken, Apr 6, 2021.

  1. Wickedchicken

    Wickedchicken Light Load Member

    Joined:
    Nov 6, 2020
    Messages:
    50
    Thanks Received:
    64
    0
    Ok Guys,

    Back again. This time, I haven't the slightest clue what is going on with my truck when it comes to this issue. Just to recap, i just bought the truck last December so I'm just figuring out how she runs and operates. But one thing is surely bizzare. At night when i'm in the sleeper it happens. Something moves the trucks forward as if someone has bumped the whole truck while parking. It happens at random times, after I turn my truck off and set the air brakes, it happens with the trailer and without. The entire truck jolts, not by much but just enough so you can feel the shift. It happens for a split second, all the while making my heart skip a beat. When it first happened to me i ran outside my truck to see who hit my truck, but to my amazement no one was there. Any thought on what this might be?
     
  2. xsetra

    xsetra Road Train Member

    Joined:
    Aug 21, 2011
    Messages:
    5,109
    Thanks Received:
    6,972
    0
    Air bags are losing air. It gets to a certain point and the wheels have to move to release the pressure.

    Watch your axles when you air up a completely flat air spring.
     
  3. God prefers Diesels

    God prefers Diesels Road Train Member

    Joined:
    Jun 26, 2020
    Messages:
    4,198
    Thanks Received:
    22,261
    Location:
    South Texas
    0
    Probably air bags deflating, and it gets to the point where the "roll" overcomes the brakes enough to pop forward a little bit at a time.
     
  4. God prefers Diesels

    God prefers Diesels Road Train Member

    Joined:
    Jun 26, 2020
    Messages:
    4,198
    Thanks Received:
    22,261
    Location:
    South Texas
    0
    Lol, beat me to it.
     
    Rideandrepair and Wickedchicken Thank this.
  5. drivinhome

    drivinhome Light Load Member

    Joined:
    Sep 16, 2009
    Messages:
    91
    Thanks Received:
    102
    Location:
    Southeastern Mass
    0
    X4 on the trailer air bags.
     
    Rideandrepair and Wickedchicken Thank this.
  6. Powder Joints

    Powder Joints Subjective Prognosticator

    Joined:
    Sep 25, 2007
    Messages:
    7,658
    Thanks Received:
    7,739
    Location:
    Rosamond, SoCal
    0
    The ghost of a previous driver.....
     
  7. Wickedchicken

    Wickedchicken Light Load Member

    Joined:
    Nov 6, 2020
    Messages:
    50
    Thanks Received:
    64
    0
    thank you guys so much!! i will address this to the mechanic tomorrow.
     
    Rideandrepair and Trucker61016 Thank this.
  8. Magoo1968

    Magoo1968 Road Train Member

    Joined:
    Mar 18, 2021
    Messages:
    2,032
    Thanks Received:
    5,426
    Location:
    St Malo mb
    0
    Try dumping air tonight and see if you still have low air in the morning.
     
    Rideandrepair and brian991219 Thank this.
  9. Wickedchicken

    Wickedchicken Light Load Member

    Joined:
    Nov 6, 2020
    Messages:
    50
    Thanks Received:
    64
    0
    its at the dealer, so i'll let them know about it. hopefully they can get the diag and repair in before friday, ive been down since early last week.
     
    Rideandrepair Thanks this.
  10. Wickedchicken

    Wickedchicken Light Load Member

    Joined:
    Nov 6, 2020
    Messages:
    50
    Thanks Received:
    64
    0
    ok so the dealer checked it out. they used a spray bottle to check for leaks (i could have done that lol) and they said they found no leaks. so they kept it overnight to see if the airbags lost any air, and in the morning they said everything checked out fine. so, i'm thinking they prolly didn't check it properly or could it be something else.
     
    Rideandrepair Thanks this.