There have been numerous reports of gas pedal vibration (buzz) when in 4A and 4H. Mine does it too. I'm not saying its normal. I'm waiting to see what the ultimate solution to the issue is before I bring my truck in. Don't let the dealer or Ford tell you "It's a characteristic of the truck", because it isn't.

Follow this thread for updates: https://www.f150forum.com/f118/gas-p...common-314792/

 

The one thing I noticed is the reduced power on take off at wot. Idk if they are cutting power in 4a or I'm losing that much to extra friction, but it's definitely slower off the line. I love it in the rain tho. I'm happily surprised how good the hankooks are in the wet too. Granted they only have 7k on them, but they are really good in the rain.