7.3 idi possible fueling issue?

[ford_7.3]

I recently (about a month ago) replaced my injector pump on my truck. at first it ran fine, but now if i run the truck over 50-60 mph it dies as if i ran out of fuel, and is a pain to start. i replaced the mechanical pump yesterday, hoping that it would fix the problem but during my test drive, my truck died at 65 mph. do yall think that this has to do with my new ip? any help is much appreciated. thanks.

[powerstrokemonster]

i think you got a line somewhere that is getting air. the first i would check is the rubber lines running from each injector and to pump and from filter housing. but i dont think it has to do with new ip. u can try to advance or retard the ip to see if that makes a difference but i thinking you are just catching air somewhere good luck

[ford_7.3]

ill give it a look, thanks!

[barritt1134]

i just bought a 1993 7.3 idi turbo and it ran great the day i bought it, i drove at least 100 miles and then it just stalled out on me. so i thought i ran out of diesel and the fuel gauge was messed up just so happens i stalled out at a gas station, so i put diesel in there and fired up after a minute of cranking. thinking that was the problem till about three miles down the road it stalled out again! after putting 6 gallons in. so i waited and after a minute of cranking it fired back up,now knowing the gauge isnt messed up something is wrong, so i went up to oreillys and got a new fuel filter and that diesel treatment everyone talks about and it ran good enough to get home after stalling out on me two more times on the way home. What else ive done since parked is a throttle position sensor, the other thing every one is talking about the crank positioning sensor which sounds like the same symptoms i am having but the 1993 7.3idi doesnt have one, umm i also notice today that my oil pressure is about a quater high on the dash gauge does anyone have any suggestions! I really need to get this thing going but i dont wanna spend a bunch of money shooting around the problem

[av8or1]

Originally Posted by barritt1134

i just bought a 1993 7.3 idi turbo and it ran great the day i bought it, i drove at least 100 miles and then it just stalled out on me. so i thought i ran out of diesel and the fuel gauge was messed up just so happens i stalled out at a gas station, so i put diesel in there and fired up after a minute of cranking. thinking that was the problem till about three miles down the road it stalled out again! after putting 6 gallons in. so i waited and after a minute of cranking it fired back up,now knowing the gauge isnt messed up something is wrong, so i went up to oreillys and got a new fuel filter and that diesel treatment everyone talks about and it ran good enough to get home after stalling out on me two more times on the way home. What else ive done since parked is a throttle position sensor, the other thing every one is talking about the crank positioning sensor which sounds like the same symptoms i am having but the 1993 7.3idi doesnt have one, umm i also notice today that my oil pressure is about a quater high on the dash gauge does anyone have any suggestions! I really need to get this thing going but i dont wanna spend a bunch of money shooting around the problem

Did you ever get this figured out? What was the problem and solution?

[barritt1134]

never got it figured out any suggestions

[fordmike]

My 87 with a 88 7.3 swap was doing the same thing every time i went to crank it after a stall it would have air in the fuel filter then it just died couldnt get her to start again still trying to figure it out replaced everything between the tanks to the ip have a feeling it is the injector caps