As I mentioned, 200 isn't too much to worry about considering that is the average temp an engine will run. However, are you certain the cooling fans are turning on when you are going slow or stop and go traffic? To be honest, at highway speeds, there is enough air flow through the radiator to maintain the engine temp. It is at slow speeds or stopped when the air flow is lost and the cooling fans need to take over. Confirm they are working. If they are, check for the following:
Is there white smoke from the exhaust
Is there any evidence that coolant is mixing with the engine oil or oil with the coolant
Are there any leaks you can find?
Let me know. None of the above items I listed are an issue, the fans are working, the thermostat is new, and the coolant is clean and full, I think we will need to flush the radiator and engine block.
Let me know.
Friday, October 3rd, 2014 AT 5:26 PM