Free_Style,
So your saying that the thermostat is the problem even if I have no problem with heating or cooling?
Also my gas gaugelast weekdid the same thing (gauge pegged to the left (empty) even though I had a full tank of gas). It was very cold outside (below zero) that day. After the car warmed up the gauge worked again and ever since. I've never had problems with gauges on any car I've driven or owned. I'm fifty years old and have owned at least 15 cars. Weird stuff!!

Thanks,
David