Where is the cam shaft located in my engine on 2005 Dodge Stratus

my car wont start sometimes, The repair shop said that it is the cam shaft. Depending on where it is located in my engine will determine how much it will cost me. Where is the cam shaft located?

Asked by for the 2005 Dodge Stratus
The cam shaft is usually located at the top of the engine. The cam shaft is responsible for pushing the intake valves down, so it would be above the upper cylinder.