Hey guys i was hoping someone could help me out with an issue im having. My truck is running beautifully except for this kink that popped out of no where. if i accelerate nice and easy and get up to my speed nothing happens but if i accelerate a little hard my truck begins to surge. this is present through all gears. if anyone can help that would be wonderful!

 

Hows your plugs? When was the last time they were changed? Oh and also add a bit more info(year,engine)

 

just bought the truck 4 months ago have yet to check them but that was my thought as well. 2002-4.7 v8