ok so my jeep was heating up to 210 and almost to red when in city or out on trial or climbing hills the only time it would go down to 200 is when driving on the highway, so i changed my thermostat and it still does the same thing i just did the thermostat yesterday, and but now when im driving on the highway it gos down to in between 200 and 190. so idk why it is still heating up.

 

my 96 was doing the same thing try flushing out ur rad and check ur water pump mine was bad u might want to get it pressure tested to see if its ur head gaskets all mine was the water pump it runs at 200 to 210 all the time now good luck

 

You may also want to try "Burping" (jack up the front of the Jeep, take off the cap and squeeze the upper hose) the system for air...Tj