Can you tell me where I can find info on how to change the temp sensor? Anyway, on hot days (90+) it has gotten into the red and I have turned the defrost on full blast with the windows down (not fun in traffic on 90+ degree day!) and this cooled it off. Also, when the engine is cold in the morning and I turn on the ac in my driveway the cooling fan does not turn on, is that important?