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Hello! I just picked up our first buick. a 2011 regal. I'm super happy with the car thus far, however the more I drive it the more I notice an idle issue.
Its the 2.4 with 64,xxx on it.
It does not happen all the time, nothing else seems to happen at the same time, but it will just while at a stop sign or on the driveway start to seemingly hesitate /rough idle. It doesn't seem to get worse and goes away immediately when you give gas to accelerate.
Wondering if anyone had experienced such a condition and what the fix was.


Thank you so much for the input!
 

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I also have a 2011 regaly car was made in Canada so idk if the us models are the same but got a letter in the mail from gm that there is a idle air sensor that is causing the issue call your nearest dealer they may have some insight on this issue
 

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I have the same issue on my 2011 Regal turbo. It doesn't happen all the time but when I'm at a light or stopped on occasion it will do it. Mine was built in Germany.

On a side note mine is in the dealer for a leaking (oil) turbo.
 
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