I have a 2001 F-250, 7.3, auto, going down the interstate the truck act like it is losing fuel pressure, I have a edge additude programmer on it,but the simptoms we there befor the install of programmer, I did take the truck to Ford, no codes so they reprogramed the ecm and it seemed to help for awhile, then it started toing it again @ that time i put the next size biggger tires in it and it seemed to stop, on Friday I was in the "I" again and it happend so I went into the programmer and adjusted the fuel delivery and it stopped. I am thinking that it has a clogged injector or a possible fuel pump failure. anyone experiance this. I have also change fuel filter and still have problem.
I havent ever heard of this happening before but it could be due to a bad injector or pump a pump esspecially if its driven around alot with out much fuel.
You should take it to a good shop and have them run a injector pop off test to see if there is a performance prob or an electric issue. Ford can do this but it depends if you have a good dealer around. Also does your tuner have a fuel pressure reading on it? May be the pump is starting to fade. Nathan; Ford tec for DNMS.waytogo
