My daughter bought a 2003 Mazda 6. She thought she was getting a deal but it's the exact opposite. Problem after problem after problem. It's overheating. I have replaced the thermostat, the leaking radiator, and hoses going to them. It seemed at first to do it, but after running a while temp started jumping up again. I don't know what to do next. Water pump going out or malfunctioning? I took it to AutoZone and they checked it out, tons of problems but nothing to do with water pump. Please tell me someone else has had this problem and can't help. ANY ADVICE is greatly appreciated.