First off...I searched the forums and wasnt able to find anything.

So...

Whenver I get on it it seems like the truck has trouble shifting. Its usually the 2-3 shift. What causes this? It has progressively gotten worse but it only occurs at wide open throttle. The level of the Juice doesnt matter. It does it at level 0 and it does it level 3.

Thanks,
Rico

Sounds strange, but I was having the same problem and after changing the fuel filter, the problem was gone.

I found some posts suggesting changing the fuel and transmission filters. So I changed the fuel filter and then drove to the store to get some oil for a oil change and the truck was shifting fine.

I normal change the fuel filter every 10000-12000 miles. I had let it go 20000. Lesson learned.

I have never been able to go by the computer for fuel filter changers, I always change them at 10,000 miles, some times more often depending on how the truck is acting.

Fuel filter. I know on my truck I have to change it more often with the double pleate filter.

I had the exact same problem with the hypertech on the highest setting. After reading this I changed the fuel filter and it drives like new.