Check engine light came on...hooked it up at auto zone it said I needed a thermostat...bought it and replaced the old one...now my car is overheating...and a few days ago it all of the sudden won't start it acts as if it was out of gas but that's not it...it tries to start but it just won't its like it's not getting gas...one friend said I jeed a new fuel pump or filter another friend said it was my starter my boyfriends dad said I have water in the oil...pray I don't have a cracked head gasket...