The 2001 Chrysler 2.4L 4-Cyl. (DOHC) has a timing belt and it must be replaced at 120,000 miles. This is an interference engine and if the belt breaks serious engine damage will occur. BTW, the water pump is driven by the cam belt. Replace the pump at the same time you replace the belt. They have approximately the same life expectancy and this will save you labor cost later when the pump fails, which it will.
No, it has a chain.
The Chrysler 3.3L has a timing chain.
Chain
Chain
It has a timing belt.
No, chain.
2.4L has a belt. 3.0L has a belt 3.3/3.8L has a chain
2.4L has a belt, all other engines are a chain.
The 3.5L has a timing belt.
Timing belt
every 100,000 miles
chain