Ok, so my 2003 GTS is in my friends shop and he hasn't had much time to look at it being busy. I am worried that I might have a blown head gasket that we havn't found yet (will explain why in just a minute). I was driving Saturday and I was sitting a stop sign when the car belched out a cloud of smoke and stalled. I just did the timing belt ( complete kit with water pump the day after Christmas) and have been driving for the last two weeks with NO problems outside of random stalling (my buddy says my alternator is not charging correctly but the car has 155k with the original alternator so I am not surprised). I had it towed to his shop and he was able to start it right up but he said it runs but runs like ass. We think the timing may have slipped no more than 2 teeth (I am assuming my tension loss tension??). The reason I say it might be a blown head gasket is because he checked the radiator and said it was low in coolant. I did change the water pump and filled everything back up or so I thought but, the car has not ran hot at all. Can our cars run with the timing off two teeth or more? Can this destroy the valves?