My antifreeze is leaking, my truck almost overheated and its freezing cold?? I have a 1993 Jeep Grand cherokee. Well i try warming up my truck this morning, and when i went to actually leave i notice it was leaking antifreeze. I opened the hood and noticed that a little bit of the antifreeze was frozen on the hood right above the cap and it look like it was dripping from the cap but what look like smoke was coming from the fan area, the thermostat also reached above a hundred close to the rez zone. The thermostat was replaced this summer becuz one of the hose broke cuz it overheated. And now i'm having similar issues.