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Cummins cuts out on me

Discussion in 'Truck & Equipment Repair' started by dirtyscag, Dec 31, 2011.

  1. dirtyscag

    dirtyscag Senior Member
    Messages: 121

    I have an 03 cummins and when im going down the road it just cuts out with no warning at all more so when you let off like going down hill or at a stop sign. It almost seems like it just runs out of fuel but other then that it runs great. What could this be and how would i tell? Thanks
     
  2. Banksy

    Banksy PlowSite Veteran
    Messages: 3,113

    Key on/off 3 times leave on 3rd time. Look for code in odometer. I'm thinking fuel pump going south on you.
     
  3. no lead

    no lead PlowSite.com Addict
    Messages: 1,308

    fuel filter could be clogged as well.
     
  4. NICHOLS LANDSCA

    NICHOLS LANDSCA PlowSite Veteran
    Messages: 4,310

    Fuel solenoid?
     
  5. H&HPropertyMait

    H&HPropertyMait Senior Member
    Messages: 558

    ALWAYS keep a spare fuel filter in the truck, it happens all the time. Not saying thats your problem but check easiest first. you have an 03, do you have a smarty tuner? if so it doubles as a code reader.
     
  6. NICHOLS LANDSCA

    NICHOLS LANDSCA PlowSite Veteran
    Messages: 4,310

    He's cutting out at no load/throttle probably not a fuel filter
     
  7. H&HPropertyMait

    H&HPropertyMait Senior Member
    Messages: 558

    i know, i said it might not be the problem, but every diesel guy should have a spare fuel filter in the truck, as they can go bad at random, has happened to me twice.
     
  8. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,977

    probally you lift pump,,,,common problem on certain year dodges. do a search on this. should fine what years were affected. theres a few different fixes for it as well,,not cheap either
     
  9. Banksy

    Banksy PlowSite Veteran
    Messages: 3,113

    True except for the expensive part. Here's a brand new stock style LP for $159

    http://www.genosgarage.com/prodinfo.asp?number=PUMP_FPD4089602

    This is assuming you still have this style pump and it's actually the problem. If it's in the tank, it will be a tougher fix. Dodge put new pumps in the tanks under warranty.

    I have a FASS 95 titanium series pump on my truck.
     
  10. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,977

    ok,,i thought they were more saltly then that. i had an article in my diesel mag about that. they opted to go the fass/air dog route. thats the salty route lol
     
  11. H&HPropertyMait

    H&HPropertyMait Senior Member
    Messages: 558

    Only way to go
     
  12. wewille

    wewille Senior Member
    Messages: 311

    The raptor is not a bad choice either. Lifetime warranty as well. Much cheaper than a fass system
     
  13. dirtyscag

    dirtyscag Senior Member
    Messages: 121

    I changed the filter and still kept doing it any sure way to test the lp
     
  14. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,977

  15. Banksy

    Banksy PlowSite Veteran
    Messages: 3,113

    Key on/off 3 times leave on 3rd time. Look for code in odometer.

    Have we done this yet???
     
  16. Red_Rattler

    Red_Rattler Senior Member
    Messages: 201

    Lift pump going south... But yes check fuel pressure and the stock replacement part isnt always the best way to go. Got the same one from genos, first was dead outa the box second one lasted a year. Now all my trucks have airdogs