CHEVROLET MALIBU ENGINE MISFIRE

I Have A Misfire In Cylinder 2, I've Changed Spark Plugs, Cylinder 2 Coil And O2 Sensor But Didn't Help At All. What's The...

My Vehicle Will Jerk When I'm Driving With The A/c On, And It Will Also Jerk When I Am Stopped At An Intersection With The Car In Drive...