After waiting on traffic light press down on gas and van moves slowly on 2003 Ford E-250

My work van works fine but after a traffic light sometimes when I press on the gas it moves slowly and then it picks up speed. In addition sometimes when I am on a traffic light the car seem to jump foward (like a kick). I changed the fuel filter but no help.

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
2 answers
Could be a number of issues related to the computer engine controls-a computer scan is needed to look for faults in the system or a sensor like the MAF out of range
scan test it for codes