My car is making a noise that sounds like a.

When the Check Engine light turns on there is at least one diagnostic fault code stored in the Engine Computer. Chrysler makes reading them very easy. Cycle the ignition switch from "off" to "run" three times within five seconds without cranking the engine, then leave it in "run". After a few seconds the code(s) will be shown in the odometer display. Holler back with those numbers.

That's a misfire in cylinder # 4.