fuel leak

[dom.nall]

i have a 97 f-350 7.3, when the truck is running thier is a steady drip, almost stream of fuel dripping on the downpipe. thier is no fuel in the top of the motor, or visible spray coming from anywhere. the onlything i can see is it may be dripping from the back of the head about 4-6 in. away from the turbo. anyone who may have an idea as to the problem would help emensly.

 

[01PSD]

so no pools in the valley? someone please correct me if im wrong but I assume there are plugs at the end of the heads for the fuel rail, could be leaking from there.

and :welcome:

 

[dom.nall]

no not enought that i can see atleast. but the amount of fuel thats comin out i would deff think their would be a puddle. the only thing is that i can think is im pretty sure the fuel jelled. it was -26 a week ago, i didnt start it when it was that cold, didnt want to push it too much. would that have anything to do with it? i was thinking that maybe if could have expanded and broke something. ?

 

[Magnum PD]

Could be your fuel pump. It has a weep hole.

 

[dom.nall]

Under the hood?

 

[neverkickn]

Under the hood?

in the valley.

 

[jbkingranch]

no not enought that i can see atleast. but the amount of fuel thats comin out i would deff think their would be a puddle. the only thing is that i can think is im pretty sure the fuel jelled. it was -26 a week ago, i didnt start it when it was that cold, didnt want to push it too much. would that have anything to do with it? i was thinking that maybe if could have expanded and broke something. ?

The fuel will not expand when it gets cold and cause anything to break. All that happens is the paraffin in the fuel turns from a liquid to a solid. O-rings fittings and hoses will leak when everything gets really cold. I have had a couple of fuel leaks on my truck when it's gets into the negatives.

I believe there are two flexible hoses that go from the fuel pump to the fuel bowl. The pump itself is aluminum an has a stamped steel top to it. My 96 started leaking from the pump between were they join. Your fuel supply and return are on the left front. Fuel supply is a suction so I wouldn't think it would leak but the return is a possibility. Your fuel feed and returns are steel lines that I think feed from the front and gets returned to the pump from the back of the head. Check those fittings and the whole line. They can gets cracks from vibration or hole rubbed into the line from things getting routed wrong.

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