97C5ENVY

...but only about 20% of the time. Everything else is in great condition and runs well otherwise. There are no codes set, no leaks, and all fluids look normal (even transmission fluid). It's 2009 Chevy Aveo with 36,000 miles. I'm looking at purchasing the car so i do not know it's history.

Anybody have an idea what may be causing the car to occasionally stumble...but otherwise run well?

Thanks!

Dave68

http://gm.ws123.net/EN/documents_200...2_1f22.en.html