I signed the papers to buy it as is but the car started running hot 2 weeks after buying it. 5 different mechanics have looked at it changed thermostat, radiator cap, flushed the entire system, and change the water pump. They can't figure out why it is running hot. I called the car lot to tell them about the problem they picked it up and said they fixed it 10 miles on the way home it was hot again. Come to find out a lady had it b4 me and let iT get repoed because she had the same problem. They have told me I could just change out the car for another but then keep pushing that car back in my face saying its fixed. Is there anything I can do.