I have a '95 F-250 XLT, 2wd, 351Winsor EFI w/ ZF 5-speed w/300,000+ miles on her....I call her "Ugly Betty Ford".
She's always run good, but recently started "bucking" during acceleration. The other night I pulled off the freeway, and as soon as I stepped on the clutch, she sputtered & died, then wouldn't start. I installed new fuel pump, she started right up. still bucked but not as bad. 30 miles down the road it died in an intersection...again wouldn't start. New cap & rotor; no good. New coil... Fired right up, still bucked alittle. another 30 miles, again dead in thewater.
Would anyone have a clue where I go from here. I would just love to hear from you. thanks.

 

I'm thinking TFI module.
I know they changed from grey to black around '95.
Which one do you have?

 

When was the fuel filter changed last?

 

Codes? You REALLY have to start there. These engines will often tell you exactly what's wrong if you care to ask it.

 

bucking how? like slowly sputtering like out of fuel or sudden shut off like you turned off the key? Narrow it down a little more from fuel to electrical with these two. Sounds like it could be either... sputtering makes me think fuel, like filter or crap in the tank or even bad gas. Electrical either works or it doesn't and when it doesn't you know it right then.

 

Does anybody have a clue? Yes, as a matter of fact your truck has a few clues, PULL THE CODES....

 

Last week: That was the first thing I did when she started "Bucking/Jerking", then plugs.

 

Last week: That was the first thing I did when she started "Bucking/Jerking", then plugs.

 

I guess I better find out what it is & does and I'll get back to you. THX.