Q: when do i change the spark plugs in a 02 chrysler sebring??

i have a 02 chrysler sebring and with 52000 miles. when do i need to change the spark plugs?

Mechanic Q: what are the signs of needing a new timing belt and spark?

what are the signs of needing a new timing belt and spark plugs. how often should this be done. it has 51000 miles on it