2001 Chrysler Sebring

Engine Mechanical problem
2001 Chrysler Sebring 6 cyl Front Wheel Drive Automatic 74222 miles

My engine light has been on for a week now. I had auto zone check it on their computer and it said there was a vacuum leak. I replaced the gas tank cap, but no luck. I think I have checked all of the vacuum hoses I could find, but maybe not. Have any suggestions before I go pay $100 at the Chrystler dealership for them just to tell me what it is without even fixing it?
Thanks for all the help or suggestions you can give me.
July 15, 2009.

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