Fuel systems most likely
I drove out of my drive the other day and began down the road I slowed down for a car about four blocks down the road and when i pressed on the gas again the truck spuddered over and over and eventually stalled. It will start up just fine but as soon as i put it in gear and start going it spudders and stalls. I have replaced the fuel assembly unit about six months ago and just before winter had a new fuel filter put on. Any suggestions to what it may be?