i dunno if anyone can help me with this or least help with what the problem might be but everytime i start my truck and i sit there it accelerates by itself same with going down the road in cruise control i'll have it set at 60 going on the most flat roads there is (illinois) and all sudden it accelerates to 63 then back down? i dunno what the deal is hopefully someone does.

 

get it on a scan tool and see if the throttle position sensor values are fluctuating.

 

Check the map sensor values while you're at it!