Ever get derated to 5 mph because of no DEF when your def tank is full?

Discussion in 'Experienced Truckers' Advice' started by A Bug, Jun 15, 2020.

  1. Dna Mach

    Dna Mach Road Train Member

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    Your DEF level sensor is shot. It will go out again shortly. IF your truck is under warranty you will be done truckin indefinitely. My company has four 2020’s that have been parked for three months. There are NO sensors available and PACCAR will not allow a non OEM aftermarket sensor on the truck. It will VOID the warranty.

    It’s a colossal ‘effin mess and I’m just lucky my company had a somewhat new spare truck available for me to use.
     
    Grumppy Thanks this.
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  3. TokyoJoe

    TokyoJoe Road Train Member

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    I'm sure there's a technician out there somewhere that'll know how to bypass that stuff by applying the 5vdc or whatever signal required to tell the system that there is plenty of def in the truck. No way I'd be waiting that long to get a brand new truck back.
     
  4. Dockbumper

    Dockbumper Road Train Member

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    But....that would be illegal!:rolleyes:
     
  5. Dna Mach

    Dna Mach Road Train Member

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    Rush Truck Center won’t do that. They did come up with some kind of “solution” that lasted about 80 miles. I’d be lawyering up myself. There would be aftermarket sensors going in them until the OEM’s are available with NO negative effect on the warranty.
     
  6. Ffx95

    Ffx95 Road Train Member

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    Probably that def quality sensor. I’m hearing from drivers and mechanics that it goes bad usually because we over fill the def tank. Pump until the first click and stop don’t add until you see liquid coming back up.
     
    Dna Mach Thanks this.
  7. Roberts450

    Roberts450 Road Train Member

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    But what do you do if your tank is empty and you start the pump and it clicks right away and you’ve only pumped 1/4 gallon?? We’ve all been there.
     
  8. Dna Mach

    Dna Mach Road Train Member

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    I can’t stand that. Sometimes you have to find that sweet spot in the nozzle trigger. If it’s quiet you can hear the fluid topping off but usually it isn’t and you have no idea you’re topped until you see it.

    I hate DEF! We rarely broke down back in the pre def days. I’d never been on a tow truck until DEF BS put me on one. I’ve ridden the hook about 10 times in the last decade. This is the first time I’ve ever broke down indefinitely though with no idea when the part will arrive.
     
    Roberts450 Thanks this.
  9. MACK E-6

    MACK E-6 Moderator Staff Member

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    But, but….

    Karen might see a puff of black smoke and get offended. God knows we wouldn’t want that. :rolleyes:
     
    Roberts450 and Dna Mach Thank this.
  10. brysol01

    brysol01 Light Load Member

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    If you unplug the speed sensor, plug a new one into the scoket and let it hang away from the sensor ring , you should be good to go
    Did for my 2014 Coronado 122sd. DD 15
    How ever it will not register, Drive on your ELD
    And your speedometer will not work
    Puts you on duty only does not keep travt of your
    miles
    I always carried a spare only cost about &40
    The 1 box outlet sensor was bad cost about $475




    MYHM could tell ya that if he hadnt hot banned
    He did way more good here than any body and
    Knew that stuff better than most , i just plugged
    In the new outlet sensor and let it hang in the clean
    Air left the old one in
     
    Last edited: Aug 26, 2021
    Reason for edit: Unfinished forgot something
  11. Judge

    Judge Road Train Member

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    So.
    Your company representative thinks you screwed it up?
    I’d want an apology and $2500 for blaming me for something I didn’t do.
    Then I’d be looking for a new company.
     
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