It looks like my door latch needs to be replaced. My driver side door doesn't always close all the way. Even if I close it enough to get my dome light to go off, I can hear air coming in when driving at higher speeds. One of my coworkers even tried adjusting the striker but that didn't work. The hinges on the door itself are fine.
My car has rough idling. It's barely noticeable if I don't have my heat or air conditioner on. However, when either of them are on, the rough idling is very noticeable. I know rough idling in general can be cause by either a bad spark plug wire or misfiring cylinder. But what could it be in this case an what's an estimate on fixing the issue?