I have a 1994 Plymouth Acclaim with 198,139 miles on it. it is a 4 Cylinder. when the car is idiling it will spray antifreeze out threw the tail pipe, also the only why the heater in side the car will blow hot are is when im driving and have to put a full gallon of antifreeze in the radiator every day there is no sign of a leak at the radiator or any hose, plus i replaced the thermistate 4 times but no change, still no heat. pluss it stalls alot when idiling or coming to a stop sign or going up a hill or pul;ling out of an intersection.