I have an update and a question. So this evening my check engine light finally came on. I hooked up a generic scan tool and got the code: P0115. According to Google, it points to Coolant Temp Sensor. Reading up on the code, it seems like it can explain my start issue and sometimes high idle issue. Does the consensus here agree?

Also, is this a dealer only part or can I get it from the local auto parts place? Finally, where is the sensor? I think I found it in the FSM at 14-16, part #2. Is it right under the engine cover or do I have to remove the manifold?

Thanks again for all the help folks!

Mike