I have a 99 camaro v6. Recently, since it has gotten more cold outside, my camaro doesnt want to stay running when the motor is cold. It starts just fine and then about 30 seconds after starting it starts to misfire and dies. It only does it when it is under 30ish degrees. I have also notices that my tension pully is not tracking normally. It is slanting downward and when my engine is dying the belt is comming off. I dont see how this could be causeing my engine to misfire, but i wont rule anything out. Any ideas about why my car runs like crap when its cold?

 

my pully did that when it went bad. chevy is the only place you can by it. pretty easy fix though, since antifreeze runs through it it will be kinda messy [:@].....

as far as the miss fire, any check motor lights? when were the wires/plugs changed last?

 

THere are no check engine lights. I recently replaces plugs with irridum ones and also did wires. I dont think its my coil packs because it doesnt do it for long. It kinda makes me think that it might be a fuel problem but i dont know. With your pully, it was your tension pully that has coolent running through it. I have also noticed that my car has a small coolent leak that started about the same time. maybe these two could be connected?