Now I know this topic might come up alot and that I should just search. Oh well. Lol AnywAys, i got my chains done (Upper and lowers) and got the car back today. I went to pick it up, turned it on and it sounded like a subie. No CEL and it idles fine. Couple of buddies looked at it and its not plugs or coilpack. I havent check the spark plugs but they said it could be the timing. Im thinking that also. A puff of black smoke came out when i was shifting gears on the highway (all of them) I had my brother behind me and he told me. The car drives fine it just doesnt sound right or feel right you