The most common cause is low coolant.
that is because your A/A bulb isn´t working fine, just change it.
The oil sending unit on a 2003 Dodge Stratus is located on the side of the oil pan. It is under the heat shield.
The oil switch on a 2001 Dodge Stratus 2.7L engine is towards the rear of the block on the right side of engine. The switch is covered by a triangular shaped heat shield that is secured by three bolts.
Most are at the passenger's side firewall behind glove box area Some are accessed from in the vehicle cabin and other under the hood
Check your coolant level, If low you need to find the leak.
heating coil or fan
Back side fo engine, below the exhaust manifold. It is protected by a silver heat shield.Back side fo engine, below the exhaust manifold. It is protected by a silver heat shield.
if no hot air is coming out in park or stopped but little is when goin but faster you go harder it comes out its the blower motor
Heater coil could have went out.
under the fount header heat sheld the car needs to be cool it gets very very hot and its very tight area to get to
It is almost dead center, just a little to the drivers side about half way down on the firewall. Remove your air intake and pull the heat shield up and you will see it. Its about 1/2" round and sticks out about 1/2" from the firewall.
It's on the frame on the right side of the motor near the radiator.