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  1. #1
    Gold Member
    Join Date
    Sep 2002
    Posts
    268
    Location
    Eastern Ontario
    Tractor
    JD 855, 322, AMT626 plus whatever my son dragged home this month

    Default Why do I run out of fuel with a quarter tank left?

    Every time my 855 gets to about a quarter tank of diesel , it starves, coughs and dies. First time it happened, I figured it was a blocked fuel filter, so changed it, filled the tank, bled the lines and everything was fine. A week later - same thing happened. Looked in tank - 1/4 full but Filter bowl was half empty. Filter was still fine. [img]/forums/images/graemlins/confused.gif[/img]Filled tank, bled lines (again!) and off we go.

    What could be happening? What can I do about it? Didn't use to happen.

    Thanks

  2. #2

    Join Date
    Jul 2001
    Posts
    735
    Location
    Southern Maryland
    Tractor
    Ford 1220, John Deere 770, Case 580E and Allmand TLB-35

    Default Re: Why do I run out of fuel with a quarter tank left?

    Does it have an in-tank filter (screen)? My Ford has it and has to be cleaned periodically or I get the same problem.

  3. #3

    Join Date
    Jan 2001
    Posts
    2,518
    Location
    Capital District, Upstate New York
    Tractor
    Satoh S650G, MF135, MF165, JD5205

    Default Re: Why do I run out of fuel with a quarter tank left?

    <font color="blue">...What could be happening?...</font>

    Perhaps some debris settled at the bottom of the fuel tank, restricting the fuel outlet port of the tank...?

    Since you already know how to bleed the lines (now an expert...[img]/forums/images/graemlins/wink.gif[/img])... drain the tank dry... look into the tank with a flashlight for junk/debris... (you'll also know something right away, when you are draining it into a container, by noticing the "fuel discharge rate"... slow/sluggish/erratic something blocking/restricting the outlet, etc.)

    The other avenue of attack would be debris in the fuel line up to or even after the fuel filter assembly...

  4. #4

    Default Re: Why do I run out of fuel with a quarter tank l

    Using it on slopes ? once it sucks air it is all over, and the bowl/filter will hold trapped air.

  5. #5
    Elite Member
    Join Date
    Mar 2002
    Posts
    3,512

    Default Re: Why do I run out of fuel with a quarter tank left?

    What does it do if you remove the fuel cap? Perhaps vent is plugged and you are creating a vacuum as fuel runs low.

  6. #6
    Gold Member
    Join Date
    Sep 2002
    Posts
    268
    Location
    Eastern Ontario
    Tractor
    JD 855, 322, AMT626 plus whatever my son dragged home this month

    Default Re: Why do I run out of fuel with a quarter tank left?

    I should have given more info. I looked into the tank, fuel is clean, can see the inlet screen, it's lying on the bottom of the tank, with at least 2" of fuel above it, looks clean too.

    I live on slopes so I'm always using it on slopes, and yes it usually seems to be after a downslope that it quits, BUT we're not talking anything too steep here. Come to think of it, the screen lies at the back of the tank so sloping down makes sense. I'll check how much "slop" there is in the tank on the same slope next couple of days see if that could be it.

    Only other thing I can think of is a crack in the hose about 1/4 tank up.

    Thanks

  7. #7
    Super Member
    Join Date
    Dec 2000
    Posts
    6,737
    Tractor
    JD 8320 MFWD, JD 6415 MFWD, FEL, and cab, John Deere MFWD 4600, John Deere 4020, John Deere 4430, John Deere 455 mower, Deutz, and Gehl 4610 perkins skidsteer

    Default Re: Why do I run out of fuel with a quarter tank left?

    My skidsteer used to do the same thing but with a half a tank left. I went through everything. Never could find anything wrong with it and I spent many a day trying to figure it out. One day we had to pull the tank to get at a hydraulic line. Lo and behold in the bottom of the tank was a nozzle from a gas can. I didn't think there was anyway this was the cause of the problem. But lo and behold for some reason that little 4" nozzle had caused the problem.

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