Anybody else have this problem? My son has a 2000 chevy Impala which initially needed a valve job, so we thought, as the rods were getting pretty loud and yesterday he heard a loud noise and the engine just quit. I'm thinking the engine is blown...we had to have it towed to my house and won't start at all. I was thinking this car is pretty new to have a blown engine. Has this happened to anyone else with a 2000 chevy impala? How much to buy another engine if I have someone to put it in...?? Anybody have any ideas at all about this?