I have a 2001dodge 3500 extended cab 2wd standard. I bought the truck last year from my father in law and it’s always had a jerking problem. It doesn’t do it all the time though it might skip a week and one day do it might decide to do it every five minutes. What I mean by jerking is while you’re driving( it does it while just setting idling as well), pulling a load or empty, it’s like the engine looses all power for just a fraction of a second and catches itself and keeps going. It’s like a ground or something is loose but I can’t find the problem do y’all know of anything?