spits and sputters ????

[thabigbuford]

ok got my 1988 bronco ll running finally and now i have a new prob runs good except around 25-30 mph it starts to spit and sputters its got fresh gas even put in some fuel system cleaner in but i still have the problem? any ideas its been sittn for about two years got it started yesterday

[dgl6y6]

does the sputtering depend only on the speed? does it go away when you slow down or speed up over 30? does it happen only when the engine is cold? does it happen all along the throttle range?

[forman621]

well if it is like what mine was doing. i got it to 4 gear and it was sputtering and didnt what to do. even if you stepped on the gas more. i was able to chang the gear oil in the transmission and it drove a lot better after that.