My mechanic put a "sealant " in twice.. and he says it is running "for now" - he is not taking any responsibility for my "cracked head" even after I paid 1234$ for a new water pump, thermastat, radiator and hoses!! my car is junk basically. I am so frustrated. He has not taken the heads off- I did not want to pay any more money!! and he said minimally it is a 2500$ job. In the past year - I have bought new tires , replaced brakes front and rear , drive belt, power steering hose and wheel bearings and various other things ... totaling close to 3800$ I am selling it but for how much?