2013 freightliner cascadia dd13

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Playinghooky13, Apr 10, 2021.

  1. Playinghooky13

    Playinghooky13 Bobtail Member

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    Apr 10, 2021
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    I've got a problem I'm working on here
    I've got this truck that will idle fine etc start out on the road and it acts like you took your foot off the pedal. Rpms drop down to idle then it will come back here last couple of days you cant even drive it. Before it was real intermittent. I replaced the pndb module today didn't help I've got a code that comes back to the qaunity control valve I'm trying to remember what it was but I'll post it in a minute. I know the qaunity valve will mess the idle up but not sure if it will do this. Any help would be greatly appreciated
     
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  3. Playinghooky13

    Playinghooky13 Bobtail Member

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    Apr 10, 2021
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  4. Playinghooky13

    Playinghooky13 Bobtail Member

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    Apr 10, 2021
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    The instrument cluster dosen't lose power it's just the accelerator
     
  5. baha

    baha Road Train Member

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    You may need to replace the fuel petal sensor under the GO pedal? T P Sensor, When it goes bad the eng. can't tell if you are pushing the fuel pedal.
     
    Last edited: Apr 11, 2021
    Magoo1968 Thanks this.
  6. Playinghooky13

    Playinghooky13 Bobtail Member

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    Apr 10, 2021
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    Yes I've thought about that. Do they go bad and not show a code. I'm almost leaning towards the mcm after doing some troubleshooting but not positive yet.
     
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