About 2 weeks ago, dealer replaced engine long block because apparently someone dropped a screw into my intake and it ended up in the 6th cylinder. . It took them a week to fix it. When I got the car back I plugged in an obd reader and saw 4 permanent codes, came back to the dealer and he assured me I won't have any more issue and it was software related. Well they did get rid of the 4 codes but there were new codes...came back again because I started to notice that the car was acting up. He said he does not see anything wrong and that I am basically a luantic for thinking that something is wrong. I just want to make sure I am not crazy, so please watch the video and let me know. Sounds that you should listen to are: buzzing on take off, whine, hum, and knock. BTW I did have the whine before but it went away. Any input would be greatly appreciated https://vimeo.com/114212196https://vimeo.com/114212010