Running great all week. Parked for 30 mins ate a bite then left to a friends...on the way it was popping and skipping and bogging down and not wanting to go. I know it has a cracked exhaust man but will that cause that? Thats been cracked for a while now and gave no problem. cleaned EGRlast week. new plugs as well. idles fine and can rev up too in N and sounds ok, dont start till i put in gear and go. Any ideas what i might be dealing with. Any help is appreciated i gotta have my transportation fixed