I have hesitation off the start. I add Sea Foam every other gas fillup to keep the injectors clean. At 20mph the throttle response is great if I step on it, I wish I could get that on the take off. any thoughts besides a vacuum leak?
I had the same problem when I bought my truck. You want to replace your fuel filter which is like $15, which should help you with the problem! It won't respond fast, but give it about 3 days to fully stop!