Originally Posted by moregrip

FYI, I have an 03 1500HD 6.0L, I took my truck to the dealer for the same thing, bad throttle response, and poor downshifting points. They told me they checked it out and that everything was operating within design specs, funny thing though, it felt totally different, much less lagtime from throttle mash to acceleration, and downshifts seem better placed, go figure....