Zl1 running bad

[Droptopscott]

I have a 2013 zl1 that's running pretty rough. It had a misfire on cyl 1. Removed plug and its oil fouled and some of the center electrode was broken. Replaced plug,now it idles a little better but smokes from exhaust and when you test drive it spark knocks really bad and has an oil leak that runs down both sides of transmission. I've looked with a mirror but can't see a leak. I'm thinking supercharger. Any thoughts

[christianchevell]

It says you have a 14 v-6? oil foul could be from a bad plug not firing right, it should not spark knock ever, you sound like it needs warranty work ASAP and a tow to get there, otherwise you could grenade your engine..... could be from.....jumped timing which could have smashed a valve a little .... or god any number of things for leak down the trans also can be any number of things but most likely your oil is coming form the top end and would be worried about the heads..... Predetonation is when you hear spark knock its also caused from a lean condition that can melt pistons.... it can also be form the car not being timed correctly any more and we have a computer that is supposed to keep you from ever knocking so bud you got problems as you know. You could have blown a gasket between cylinders on the head gasket or could have blown the head gasket in a place not between the cylinders causing that knock... you can imagine a knock from hell well that's the sound of a head gasket blown out the side or between some cylinders.... Or you could have blown intake gasket etc etc etc . I would have it towed in for a warranty job, or if over the miles.... wait and watch time go by until you can get it to a competent mechanic and save up money. You should have got a code, CEL or something from your ECU detecting the knocking etc...and should get it on a software that tells the mechanic WTF is up faster than ASAP... Good luck.