1991 Fuel pump runs continuous, F250 won't start cold

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novamarz@gmail.com - 04 Oct 2006 07:15 GMT

I have read several posts on this topic, great discussions, no answers
though.

When I turn the key on, if the fuel pumps runs and stops, the truck
will start cold. If the fuel pump runs and runs continuous the truck
will not start. No fuel, will start with gas sprayed in the throttle
body.

F250 dual tanks, in tank fuel pumps with 130,000 miles. OBD I code,
fuel pressure, when running rough. I suspect fuel pressure regulator,
all gas being returned, not enough pressure building.

If I turn the key on and start all in one quick motion the truck will
start cold. Once the truck starts and gets warmed up it will start and
run all day. Has to sit and idle 5 minutes, can't touch the gas pedal.

Like I said before, several other posts had the same problem.

Did anyone get the Ford Fuel problem fixed?

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Mountain Mike^^ - 04 Oct 2006 15:51 GMT

> I have read several posts on this topic, great discussions, no answers
> though.
> Like I said before, several other posts had the same problem.
>
> Did anyone get the Ford Fuel problem fixed?

Man, I'm no fuel expert, but I'll take an educated guess.........

From what you describe, it appears you have a leak-down that seals itself
when the engine warms up. I wouldn't be able to trace it though. sorry

MM^^

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state tech - 05 Oct 2006 01:11 GMT

sounds like the final pump is going bad,if it has one? some did some didnt.
if so its located on the frame rail about under your feet. your fuel pressure
should be around 35lbs. most of the time the pressure reg. will cause to much
pressure, and pump gas into one of the back cylinders past the rings & into
the crankcase.

>I have read several posts on this topic, great discussions, no answers
>though.
[quoted text clipped - 15 lines]
>
>Did anyone get the Ford Fuel problem fixed?

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