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1979-2004 V6 Mustang Tech Discussions

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Unread 07-18-2009   #1 (permalink)
staabo1 is offline Rookie

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Springfield   Illinois
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Any Suggestions? 2001 mustang v6 rough idle

i change my buddy passenger side exhaust manifold gasket on his 2001 mustang with a 3.8L and now it has a rough idle. i had to disconnect the mas and the map sensor and egr tube. Then after i reconnected all the sensors and tube it has a rough idle. the only time it has the rough iis when you hit the brakes. it jumps around from 600- 900 rpm when braking.i was wondering if anyone had any ideas?
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Unread 07-18-2009   #2 (permalink)
stringsplayer is offline Rookie


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check all the vaccuum lines
sounds like the power booster is sucking to much or little
triple check every fitting and connection
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Unread 07-18-2009   #3 (permalink)
shinerstang is offline SHELBY GT 350 Member

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Double check you mas plug again.......
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2002 V6 Turbo 10:25@134.52
2001 V6 Nitrous 12:94@104.88
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