Best way to make sure you have no air, is to open the radiator when it is cold, make sure it is full. Then with the cap off and the defroster on high heat let in idle in the drive way. It will warm up and as the coolant moves through the block all the air will naturally burp up through to the filler neck. Give it sometime. That should be the first step just a bit of air can cause you problems. If you have the 195 thermostat you should be okay, that is what it is designed to run.
Make sure your probe is installed close to the inlet hose. Another thing that can't hurt is to reset the temperature control. Turn it all the way down when the engine is cold and let the Jeep idle to warm up then when you temp is near normal, turn that knob so the fan kicks on. May be that you have a couple of things combined that aren't quite where they are supposed to be. Good Luck