Question about 2005 Hyundai Sonata

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My 2005 sonata GLS v6 idles rough when fully warmed up w/ac on

It act like its lean but no ckeck engine light.Ive checked for vacume leaks and the only thing i find is where a vacume hose goes to the end of the fuel rail, there is a hissing sound at the sensor. Is this suposed to do this, or could this be my problem.If not what else could i check?

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Dear friend-if you suspect a vacuum leak it is easy to pinpoint the leak.while engine is running poar water at the suspect areas and listen to a change in the engine

Posted on Jul 20, 2009

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Posted on Jan 02, 2017

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