Are you sure it is limping the engine or tranny? What codes are you getting? When is the last time you changed your fuel filter? Do you have any mods? We will need more info to help you out with a decision.
I have never in all my time of owning my truck heard that. If im wrong disreguard my last posts.THe engine can go into limp mode for low rail psi(p1093) also,
I just changed the spin on filter, and the trans fluid. I've got the Edge Juice and have only run it on level 2. That doesn't seem like it should be too much power when you're just passing with out a trailer on back. Should I consider one of those extra deep sump pans for the trans?