I had a leak in antifreeze, overheating and overflow was full. I changed fan clutch and Water pump in November. Had a faulty fan clutch so exchanged it. Then leak again in March. Found a crack in radiaotr. Changed it and both hoses and 2 weeks later overheating again. Found fan clutch was out again. I changed it and drove 180 miles. Found antifreeze on ground under truck. Drove 10 miles and again, more antifreeze. Overflow is still full. Checked radiator and was a gallon low. What could it be?? Also have been having code p0014 lately but think thats another story. (Changed vvt solenoid, thinking timing chain with that one) Please - on the verge of shopping for new car due to stress and worry.