Hey man i am having the slow acceleration from a stop issue and at like 20mph or less its like a vibrating or bucking. When I take it to the dealer it isnt always doing it because its sporadic. Was yours constant? Did the dealer feel it when they drove it? How did you get them to realize it was the valve body. Please help?

Thanks

I have not found a solution so far. I keep getting the same "Normal engine sound" explanation. If you do get the problem corrected, please post.