Van hesitation when step on accelerator

Ninja: Why would you demean someone for taking a logical approach at trying to solve a problem?! They're here for help not to be put down so next time why dont you keep your negative comments to yourself! GuruT6ZS9 : a vacuum leak could cause your issue as could a dirty EGR gasket not functioning properly along with other things such as worn spark plugs or a weak ignition system. Can you better describe the hesitation? Does it stutter from a stop and smooth out as you pick up speed and ease off the accelerator? Does it feel like there's no power then it just springs to life? The more info the better, even if weather is a factor can help