If it becomes dried out, cracked, worn, or very shiny.
A town and country should have a chain.
100,000 miles.
Yes.
If it is a 2.7l engine it is a good four hours, and that is on a good day
It has a timing belt.
Timing belt
Chain
The 3.5L has a timing belt.
every week
A 2001 Chrysler Sebring does not have a cabin filter.
every 100k miles
Not like timing belt, timing chain does not require replacement.