Maxxforce fuel issue, at 30-45 seconds running it dies.

Discussion in 'International Forum' started by WMGUY, Jul 31, 2021.

  1. WMGUY

    WMGUY Road Train Member

    1,658
    781
    Jan 1, 2011
    Nine Mile Falls, WA
    0
    Hey guys. Got a weird problem here

    Truck will start as normal hot or cold run about 30-45 seconds and die. After it dies it take 10-15 pumps on the primer and it will start back up.

    If I start it and bring the rpms up to 800-900 for a minute it stays running

    I'm thinking low pressure fuel pump but not sure.

    Truck runs normal and makes full power. No codes.

    TIA
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. ChuckMartel

    ChuckMartel Light Load Member

    119
    72
    Jan 22, 2021
    0
    Seems like fuel is leaking back/sucking air. Main culprit I’ve found is the line from the Davco to primer pump. Probably need a clear line installed to diagnose.
     
    skallagrime and WMGUY Thank this.
  4. WMGUY

    WMGUY Road Train Member

    1,658
    781
    Jan 1, 2011
    Nine Mile Falls, WA
    0
    Approaching 800k I might as well just replace all the fuel lines.

    I appreciate your reply
     
  5. Team818

    Team818 Medium Load Member

    398
    621
    May 5, 2019
    0
    I guess so. Then something else will happen. Its all over the TTR. If you buy a Truck without warranty, over the milage/years, it really just one problem after another. Take it easy. Handle them as they occur, thats why they have mechanics and shops.
     
  6. Trucker61016

    Trucker61016 Medium Load Member

    689
    2,098
    Sep 18, 2017
    Linville, Va
    0
    Key word here is Maxxforce, thats the problem they are junk after 500,000 miles apparently the tranny is no better....is it an ultrashift ??
     
  7. ChuckMartel

    ChuckMartel Light Load Member

    119
    72
    Jan 22, 2021
    0
    They make 500,000 miles?!?
     
  8. Trucker61016

    Trucker61016 Medium Load Member

    689
    2,098
    Sep 18, 2017
    Linville, Va
    0
    Well i was being generous, maybe 300,000 before the EGR starts self-destructing itself and destroying the gaskets ...
     
    ChuckMartel Thanks this.
  9. Trucker61016

    Trucker61016 Medium Load Member

    689
    2,098
    Sep 18, 2017
    Linville, Va
    0
    Oh i forgot too the maxxforce is famous for regening all the time, which also eventually fries the head gasket, i remember hearing they even get stuck in regen mode and can't clear the soot....
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  • Draft saved Draft deleted