sick powerstroke :(

[rankroddin250]

hi I have a 96 powerstroke with the edge evolution set on race...
so put any of thease variable aside I just changed my oil and fuel filter and while i was in there i cleaned the fuel return screen and shimmed my fuel preasure regulator... the ruck has been running great except... friday morning I fueled the truck and imediately afterwards the fuel filter light came on along with the check engine light and it tried dieing on me and ran like cr@p! when i pulled off the side of the road it had a real eratic idle jumping around between 4-800 rpms I turned the truck off and popped the hood to check for any obvious problems like fuel leakes or loose conetctions etc. and i couldnt find any when i turned the truck back on it ran perfect like nothing had happened... I asumed maybe i sucked a big air bubble into my fuel filter housing because i put over 500 highway miles on it with out incedent since then untill today when i was on my way home from camping and the truck started surging/bucking almost running like a gas motor does when you run it out of gas and when i pulled over it had the eratic idle again... once again i turned it off checked for the obvious didnt find any and when i restarted the truck it ran great and went over 100 miles with out any problems... this has me compleatly stumped any ideas?

[rankroddin250]

oh and by the way both times it hasnt pulled any codes surprising because the first time the check engine light came on. well the back preasure sensor low input code does come up and my back preasure valve is disconected but ive heard the only thing the EBPS controls is the EBPV and not the way the motor runs hope this helps with the ideas

[rankroddin250]

just kickin it to the top

[fordnut85]

Hmm, just on a hunch I would pull the fuel filter and look for anything obvious like crud or water in the housing, also sounds like a possible CPS.

[rankroddin250]

done all that every thing looks good theres a guy on here whos truck is doing the same thing and he changed the cps and it didnt help

heres the thread and his sounds very similar to what im experianceing http://www.powerstroke.org/forum/7-3...ing-codes.html

[westcoaststrokin]

I'll bump it for a Lewiston guy. Graduated from LHS in '93 and spend alot of time in the valley due to both my parents and the wife's sister living there.

[pipelayerjdh]

You may want to put a fuel press, gauge on it so if it does it again you can check the pressure quickly. It may just be the fuel pump.

[Stroked95]

Good advice pipe, I would second the fuel pump. You can get a cps pretty cheap now like 25$ so I would get on just to have a spare and to see if it helps. Good luck with it.

[rankroddin250]

ive heard of the fuel pump relay going to frits on them is that a posibility? im just a lil confused as to why i can shut the truck off and imediatly it goes back to normal if it where the fuel pump i would think it would need to cool for 30 mins to an hour to work properly and it would start acting up again as soon as it got hot?
theirs a port on my fuel presure regulator that looks like the fill valve on a tire is that a good place to hook up a fuel preasure gauge? and if so what do i need to do it?

[rankroddin250]

Originally Posted by westcoaststrokin

I'll bump it for a Lewiston guy. Graduated from LHS in '93 and spend alot of time in the valley due to both my parents and the wife's sister living there.

yeah its definately the arm pit of Idaho! the hottest and the smelliest place in all of idaho!!! between the wastewater treatment facility the compost plant and the paper mill mixed with 115 degree summers makes for a misreble place... but hey all my familys here and it isnt any worse than eastern montana