when car is cold it does it and when i hit 60 it loses power and the harder i step on gas , no power
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1995 Ford Mustang Question: my Mustang sputters down the road
Answer #1DaveJHM November 04, 2010, 18:36Master
Look for a vacuum leak, an air intake issue with umetered air getting into the intake manifold (broken air box, damaged air tube). Could have an exhaust restriction. Could have a fuel supply issue.
Start with the vacuum leak check - visually make sure all hoses are connected as they should be and the air box is intact. Then do a base fuel pressure check, followed by a bleed down test. Last, have the exhaust tested for restrictions.