Because pinpointing it without a visual inspection is difficult, I strongly recommend:
* Consulting a repair manual specific to your 1999 Chrysler Sebring 3.0L: This will have diagrams and precise locations. A Haynes or Chilton manual would be a good resource.
* Using a visual guide online: Search on YouTube or a reputable automotive website for "1999 Chrysler Sebring 3.0L EGR valve location." Videos often show the valve's position clearly.
Trying to find it without these aids can be frustrating and time-consuming. The repair manual is the best option for accuracy.