/99 f-250 7.2 or 7.3 not sure just purchased 2 years ago have to get smogged no cat also running wierd engine flls of when running constant speed idle up and down and very sluggish takeoff until turbo kicks in dont get me wrong i bought this with a 28 foot springdale and its a 4x4 4 door lifted for 10,000 for both and it pulls trailer like a dream just think losing power somehow heeeelp i dont kno much about eisel but im learning the hard way.

 

Not much info to go on there... How many miles? Any mods? Gauges?


Smoking at all?

 

125,000 not sure about mods bought it from a lady who's husband had died she wasnt sure what mods .had a programer in door panel but she kept that. i have guages on piller for pyrometer and boost. used to put out alot of black smoke when u stomp on it when i first got it.now not to much does if you drop to 2nd and punch it. also when first got truck took wheeling in mud deep holes left pressure relive valve on fuel filter open sucked in water and sand!!!! ya i know dropped tank replaced fuel pump removed and cleaned fuel filter housing out runs good just hesitates when takeoff and at speed idles up and down but still puls trailer great just came back from minden nevada last week only used over 1/2 tank to get there 1/4 to get back oh yah also has k&n filter in aluminum box on fender with plexi cover sealing up box. exaust is 6 inch dump over rear end no cat thats about it i appreciate the advise very much... thanks