van is hesitating when you drive it on the road?

Check engine light on? Has the van been maintained? Changed fuel filter, using good quality gas? Need more info.

my venture did the same thing on open highway it would buck. I ended up doing a complete tuneup spark plugs wires, and most importantly I replaced the coil packs (three of them) , and it made a world of difference. went from 19 mpg highway to up to 30 mpg. realistically 26 mpg