Hi all,
Bought the truck about a week ago, went to go look at it and it started up great and ran great no hiccups or anything. Two days later, the day I bought it, it had very low fuel, (on Empty), well I drove it approximately 5 miles to the closest fuel station and filled it to 1/4 just to get home. Ran great on the way home. Truck sits for a day in my driveway and when I go to fire it up it idles good for about a minute or two then stalls as if the key was tuned off. Go to crank it back up and it starts fine then stalls again. I continued starting it and letting it idle a couple more times until the idles got choppy and started surging. Still has the same 1/4 of fuel in it.
I tried to get as much data from the truck as I could while it was running, ICP was about 500-800 cranking and 400-700 at idle, duty cycle was around 14-27%.
I replaced Cam Shaft Position sensor with a gray one from the auto store. Made no difference. I unplugged ICP sensor (it has oil in it so probably bad) and the ICP ratings were higher, about 1000 cranking and 800-1000 at idle. But it still stalled after about 1 minute.
When the engine stalls the only lights on the dash are a "service engine soon" light and the "engine oil/coolant temp light" that one is usually always on, not sure why.
My next course of action is going to be replacing the fuel filter and seeing if the pump is filling the bowl, and if there are any bubbles.

I only included the part about the low fuel because I am concerned that I may have picked up air in the system, or perhaps the fuel pickup in the tank got clogged. I know there will be a code stored since the SES light came on, but the code reader I have (the same one that works for my 04 6.0) won't pick up any codes from the system on the truck.

Where should I go next, I would really appreciate some input and guidance. Thanks!
__________________________________________________ __________________________________________________ ________________
Early 1999 F250 7.3 PSD. 150,000 miles. Straight pipe. Air intake.

 

Try throwing five more gallons in it and see what happens. Maybe the fuel pick up foot fell off or is broken and it is running out of fuel. Very common. Could also be the pump and dirty filter. If you take off the fuel filter lid see if it's full.

 

Thanks for the reply, I'll be changing out the filter tomorrow and will update with results. I'll also fill up a 5 gallon and see if that makes it better.

 

X2 on what Chet said. Get more fuel in there. Then google Hutch and Harpoon mods and wish there was not so much fuel in there.

What code reader do you have? An android device with Torque pro or Forscan plus an OBDII adapter is the bees knees these days.

 

I've been looking into that just dreading taking down the tank. And for a scanner I am using torque pro with a Bluetooth elm obd2 plug-in on an Android device. Won't pick up any codes but will monitor some PIDS. Strange since it works great on a 2004 f350.

 

UPDATE!!

I charged both batteries, added 5 gallons of fuel and started the truck up. Started up strong but I had to push the accelerator to keep it going until it eventually died after about 2 minutes. BUT, I was finally able to pull codes from it!
Codes pulled: P0113, P0603, P0705, P0755, P1280
So I know some of those are transmission codes but how could any of these cause the truck to stall.
(The icp is currently unplugged, FYI)
I looked at a lot of wiring trying to find some exposed wires but came up short. I did find some fraying on the wires for the 42 pin connector that rest on the driver side valve cover but it wasn't too bad and I taped them back up.

Any ideas what's going on?

 

It's interesting this time when the truck was running I had to keep my foot on the accelerator to keep it running, when I let off the accelerator RPM dropped to about 500 then to zero and it stalled. Not the abrupt stall as if it was electrical.

 

Any ideas out there of what's going on?