1) Its possiable it's your mufflers. It happens to me every once and a while. I hate adjusting them.
2) I believe what you are talking about is the long metal tube that connects from the cats to the emissions stuff. I'm not possitive, but I think that could effect your idle. I took all that crap off my car, so I don't know.
3) It's possiable that some dirt/debri got in your exhaust tubes while it was off your car. It will smoke the first time out while it burns off. If it smokes more then that, there is something else wrong.
4) The only thing I could think it could be is the drive shaft.
|