car hesitates when stop engine runs fine when accelerating
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1995 Chevrolet Blazer Question: tune up
Answer #1patrick mannion from Greg Solow's Engine Room, January 08, 2011, 21:35Master
A vacuum leak, vacuum leak at the intake manifold, or ignition problem can cause an engine to idle rough. Hard to guess at what is wrong without being able to experience the problem fist hand and do some basic diagnostic tests.