Muscular Mustangs

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-   -   01 GT hesitation (

jvgt500 07-21-2010 11:48 PM

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

quick5pnt0 07-27-2010 02:26 PM

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.

lakisha2011 11-24-2011 11:07 AM

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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