Brought my car to the dealer(maroone chevrolet as kelly chevrolet is to far for me) for 3 problems a p0300 misfire code, driver door not opening(happened once 2 weeks ago and a maroone rep witnessed it and told me to bring it back), a what sounds like an exhaust leak.
Dealer called me back and said they had to wait for a gm rep to look at the car as it is modded. Only has an intake and a cobalt ss guage. They ended up say either it couldnt be duplicated or nothing was found wrong. Should I just bring it to kelly chev and is there someone local(I live in pembroke pines/hollywood area) that I can meet up with tomorrow sunday for a quick ride to give me an opinion of what the sound is?

edit: i have had the misfire code once before that I know of and I once got the limp mode code but it has since cleared itself from the system.