01 GT hesitation - Muscular Mustangs
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post #1 of 4 Old 07-21-2010, 11:48 PM Thread Starter
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01 GT hesitation

Help!!! My 4.6 hesitates with sucking-air sound when I tromp or blip the throttle.
TWO Ford mechanics have run diagnostics - no codes - all data within parameters.
Embarassing at autocross events. CAI had no effect. Possible cracked plenum or throttle body????
Dont want to waste $300!
Thanks for anyone's knowlegable input
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post #2 of 4 Old 07-27-2010, 02:26 PM
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Re: 01 GT hesitation

I believe there was a problem with some of the '99+ Mustangs having cracked intake manifolds but I'm not sure of the specifics.

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post #3 of 4 Old 11-24-2011, 11:07 AM
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Re: 01 GT hesitation

My '02 GTS automatic has been running rough at idle and my O2 sensors have caused my check engine light to turn on. I have not gotten a chance to replace them yet so I don't know if they are the culprit or not yet. But mine is idle not when I'm driving. Wasn't sure if that info might help or not, seemed a little related.

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post #4 of 4 Old 04-16-2014, 02:21 PM
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