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Old 12-07-2012, 10:37 AM   #1
twlott
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Join Date: Dec 2012
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Location: Midlothian, VA
What I Drive: 2010 red Ford Focus SE

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Engine starts to idle rough when brake pedal is pressed

noticed the other day that when you are at a stop light or in drive thru that the engine starts to idle rough but once you let go of the brake it runs like it should.

I was either thinking it could be a vacuum leak from the master cylinder or it maybe a IAC. Anyone have any ideas?


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