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Diesel smell...

Discussion in 'Ford Trucks' started by vmj, Nov 11, 2013.

  1. vmj

    vmj Senior Member
    from conn
    Messages: 752

    I have a 02 f350 7.3 that I am getting a fuel smell from under the hood. No spots on ground under truck.. Smell was faint a week ago< now its pretty strong... Thanks
     
  2. plowguy43

    plowguy43 PlowSite Fanatic
    Messages: 5,269

    I'd check the fuel bowl and all lines under there.
     
  3. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,967

    See anything wet under the hood?
     
  4. vmj

    vmj Senior Member
    from conn
    Messages: 752

    I don't see any leaks... But I do see wetness on top of motor..
     
  5. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,967

    Like in the valley?
     
  6. vmj

    vmj Senior Member
    from conn
    Messages: 752

    oops yes in the valley.. just not seeing any drip. looked when it was running and right after it was shut off..
     
  7. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,967

    Well. Filter o-rings are semi common. Hpop lines.
     
  8. vmj

    vmj Senior Member
    from conn
    Messages: 752

    have to look again to see if it was wet around top half of housing.
     
  9. Evil Diesel

    Evil Diesel Senior Member
    from Sharon
    Messages: 201

    My bet is improperly tightened fuel bowl cover or bad o-ring. Run down to Walmart and grab a motorcraft filter and change it out. Make sure to lube up the new o-ring with some diesel
     
  10. vmj

    vmj Senior Member
    from conn
    Messages: 752

    Thanks!! I will take a look at it first thing in the morning... Hopefully that's what it'll be!
     
  11. FISHERBOY

    FISHERBOY Senior Member
    Messages: 542

    fyi check your rear fuel line the runs along the passenger side cylinder head, there prone to leaking, I just did mine a few weeks ago, damn fitting from ford was 65.00 S.O.B
     
  12. vmj

    vmj Senior Member
    from conn
    Messages: 752

    lol greeeat !!!
     
  13. tjctransport

    tjctransport PlowSite.com Addict
    Messages: 1,390

    check all the fuel lines. the ones coming out of the fuel bowl to the injector rails, and the line going into the fuel bowl from the tank. there are clips that hold the lines secure. over time the lines rub through causing a leak.
    i had the pressure line going into the fuel bowl burst on me 3 months ago, and the lines going to the rails were ready to go too.

    same symptoms before the line went, fuel smell and a very minor leak causing the top of the engine to look wet. .
     
  14. vmj

    vmj Senior Member
    from conn
    Messages: 752

    tried to tale a better look today, but still didn't notice anything....
     
  15. 1olddogtwo

    1olddogtwo PlowSite Fanatic
    Messages: 11,525

    Put some red dye in your fuel look for the staining


    On second thought...don't
     
  16. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,652

    Fuel filter housing drain assembly. Thats where started leaking.
     
  17. vmj

    vmj Senior Member
    from conn
    Messages: 752

    im smelling it in the cab now..... guess i'll have to spend some time tomarrow to find it and see if I can fix it myself....
     
  18. plowguy43

    plowguy43 PlowSite Fanatic
    Messages: 5,269

    hahahaha Literally laughed out loud on that one.
     
  19. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,652

    Take that silly little cover of top of engine, start the truck, feel back lower side of fuel filter housing. If it is wet it is the drain valve. Not too bad to replace.
     
  20. Vermontster

    Vermontster Member
    Messages: 64

    Injector O rings. I replace mine as well as the return lines and tees every five years. Usually can be found the cheapest on Ebay.