<prompt> Human: I had a 30 point inspection done before I bought it and there were some issues with the roters and cooler lines, which I was prepared to have fixed, so I bought it. 7500. When my wife dropped it off at the shop she mentioned to them that the heater didnt blow hot air so they checked the coolant; it was low. They filled it and drove it, and noticed the coolant over flow was bubbling. They said that this is a symptom of a blown head gasket. If you dont know what a broken head gasket means, all you need to know is that it can be between 1000-2000 to fix; its also referred too as a blown motor. The 30 day warranty wont cover the engine. Can I return it? What should I be looking into for info?  <response>: There is no way they shouldnt have known this. Call them first. Offer to trade it for another car on their lot. If that doesnt work then contact a lawyer. Its going to vary based on the contract, the state and too many variables to say anything with certainty. 