2001 Chrysler Sebring won't start

u have to check on your fuel if it is old ir his viscosity to winter or summer

now that is a puzzle. did it run before you parked it? would suggest that a timing chain or belt jumped a tooth, but may have to pull the front cover off to take a look a the timing marks~ so that can be something...has compression, put the timing of the spark ain't there~ it's the only thing that comes to mind...YES spark/valve timing~