5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
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I have an 89 mustang 5.0 manual. Here recently it's been losing power. When I crank it, it idles fine, even if I rev it. Once I actually get moving it is sputtering. If I accele slowly it will move a little better. If I hold it wide open it backfires sometimes but will not go any faster. I changed fuel pump, filter , cleaned out mad and tps. Any help please
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Welcome to the forum, if you don't know what dawson is talking about, use the search feature and do a little reading. There's a ton of info on this site to dig thru and it's all been covered before. Good luck
306 with all bolt ons, letter cam, ported E7's, T5 swap, full exhaust, 3:55's, 2" drop, and the worst paint you'll ever see or feel.
Dyno'd 300/316, 2745lbs-track scale
Best ET………12.4@108, 1.66 60ft on 8" ET Drags.
24 mpg (combined)
Like daswon said. Sounds like your dizzy might be the issue. I had this problem before. Bad pip more likely. Word of advice, if you do buy a new dizzy make sure its new NOT a rebuilt/remand. They are garbage.
94 Cobra Virgin Ms Virgin
89 gt (coca) SOLD
86 5.0 vert (work in progress)
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