My car shakes after releasing the brake at a light and right before accelerating. why?

2010 DODGE CHARGER
38,000 MILES
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ASMITH0340
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Car shakes violently after releasing brake but before accelerating.
Jan 5, 2012 at 4:01 AM
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RIVERMIKERAT
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Have it scanned for codes and checked for vacuum leaks.
Jan 5, 2012 at 5:00 AM
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FIXITMR
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even sounds vacuum brake booster related? check 1 way valve?
Jan 5, 2012 at 7:08 PM
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RIVERMIKERAT
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Yeah, I thought of that awhile after I made my reply.
Jan 5, 2012 at 8:56 PM
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ASMITH0340
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NO engine light was on but had diagnostics ran on the car and came up with cylinder 3 misfiring. Spark was eliminated so it is either air or fuel at this point.
Jan 6, 2012 at 4:12 AM
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RIVERMIKERAT
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Or compression.
Jan 6, 2012 at 4:59 AM