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Major problem!! Need help!!

Discussion in 'Ask An Owner Operator' started by Batman13, Sep 22, 2020.

  1. Sep 22, 2020 #1
    Batman13

    Batman13 Light Load Member

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    May 20, 2020
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    Alright so when driving..whenever I hit a bump wether small or big...all the dash lights come on with that eerie sound...just like when the truck is off and your turning it on...and my gauges go from 0 all the way to the other side..and it's like the truck slows down..almost like it wants to shut off..I have yo take it out of gear and wait til it let's me put it back in gear...now it seems like even the super tiny bumps it does this!! I have a freightliner cascadia 2014...anyone have any ideas??!
     
    Last edited: Sep 22, 2020
    Batman13, Sep 22, 2020
    Batman13, Sep 22, 2020
    #1
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  3. Sep 22, 2020 #2
    Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Loose connection.

    Pop the 4 screws out of the instrument panel and see if the connector is loose at the wiring harness where it plugs into the instruments.

    It's just one harness. Your instrument panel is just a circuit board.
     
    Dave_in_AZ, Sep 22, 2020
    Dave_in_AZ, Sep 22, 2020
    #2
    Sirscrapntruckalot and Batman13 Thank this.
  4. Sep 22, 2020 #3
    Milr72

    Milr72 Medium Load Member

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    S W Missouri
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    Sounds like a bad ground connection at the battery or frame.
     
    Milr72, Sep 22, 2020
    Milr72, Sep 22, 2020
    #3
    DUNE-T and Batman13 Thank this.
  5. Sep 22, 2020 #4
    Ridgeline

    Ridgeline Road Train Member

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    Michigan
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    I second this, take it to the dealer and have them go through all the connections.
     
    Ridgeline, Sep 22, 2020
    Ridgeline, Sep 22, 2020
    #4
    Batman13 Thanks this.
  7. Sep 22, 2020 #5
    Powder Joints

    Powder Joints Subjective Prognosticator

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    Rosamond, SoCal
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    Check your grounds, start at the Battery then to the frame and engine connections, look for possible shorting while your there.
     
    Powder Joints, Sep 22, 2020
    Powder Joints, Sep 22, 2020
    #5
    Sirscrapntruckalot, Accidental Trucker and Batman13 Thank this.
  8. Sep 22, 2020 #6
    abyliks

    abyliks Road Train Member

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    ludlow MA
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    Dealer will rape you, time to get dirty, there are other grounds on the cab as well
     
    abyliks, Sep 22, 2020
    abyliks, Sep 22, 2020
    #6
    Batman13 Thanks this.
  9. Sep 22, 2020 #7
    Batman13

    Batman13 Light Load Member

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    Thanks for all the info..it turns out it was a loose ground...I guess all these ###### up roads just loosened em up...it took an hour or so taking things apart but luckily we got it going..and so far smooth sailing..thanks!!
     
    Batman13, Sep 22, 2020
    Batman13, Sep 22, 2020
    #7
    PoleCrusher, Sirscrapntruckalot, okiedokie and 4 others Thank this.
  10. Sep 22, 2020 #8
    Powder Joints

    Powder Joints Subjective Prognosticator

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    6,734
    Sep 25, 2007
    Rosamond, SoCal
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    No, they were not tightened up properly to start with. Driving does not loosen the connection if it was properly secured to start with. S.... happens stay safe.
     
    Powder Joints, Sep 22, 2020
    Powder Joints, Sep 22, 2020
    #8
    Sirscrapntruckalot, 650cat425 and Accidental Trucker Thank this.
  11. Sep 22, 2020 #9
    SteveScott

    SteveScott Road Train Member

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    Since the lights were blinking, I was going to suggest checking the blinker fluid level.
     
    SteveScott, Sep 22, 2020
    SteveScott, Sep 22, 2020
    #9
    Milr72 Thanks this.
  12. Sep 23, 2020 #10
    Milr72

    Milr72 Medium Load Member

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    A driver is not allowed to do that. It has to be done by a certified tech!
     
    Milr72, Sep 23, 2020
    Milr72, Sep 23, 2020
    #10
    SteveScott and rachi Thank this.
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