Here is the thermostat:
You will have to look closely at the picture below. If you notice the bottom of the thermostat, close to my thumb, there is a small gap where you can see the desk. It is very small. Let's just say that the gap isn't suppose to be there. The black ring around it is rubber and is suppose to keep the gap tight so no air can get in. Well, it didn't do its job and enough air got in that the thermometer wouldn't work to put my car in overdrive.
Hopefully the new thermostat will work correctly.
Sigh...