Truck stalling, fuel problem?

NSperduto · 04-13-2009, 04:35 PM

I'm having an issue with my truck stalling.
For reference.
2004 HO Engine, 94k on engine and lift pump, 3k on injection pump (changed
by dealer because it was leaking), 17k on fuel filter.

I was driving last night, truck made a slight stumble and when I let off
the gas for a curve, it stopped running. I tried cranking it and it would
just turn over and not start. Once I stopped, had it turning over and put
the accelerator to the floor, it started up. I went about 3 miles to the
fuel station, got fuel, I had 8 to 10 gallons left in the tank.
went about another 5 miles and slowed to turn a corner and it shut off
again. I got it started by pumping the pedal. A couple miles later, it
stumbled/hesitated going up a hill (did not stall) and then cleared and ran
fine. I drove about another mile or so home.

The fuel that was in the tank is about 3 weeks old or so (I don't drive the
truck every day) The day before this incident I towed a 8000 lb trailer for
a couple hundred miles with no issues.

I don't have a fuel pressure guage, but I could probably borrow one to do
some testing if needed. I would have to find out where to test at and what
the fuel pressure specs should be.

I'm thinking that the lift pump is going bad or possibly a clogged filter.
I have a replacement pump that I bought from Geno's last year (the one that
goes under the hood in the stock location), so I was just going to change
that and the filter and see how it goes.

Anybody have any other suggestions.

Thanks,
Nick