My 04 3500 started acting up a few days ago. The accelerator pedal feels like it's sticking a bit, doesn't hang up, just feels sticky. It only happens at low speeds.Whenever it does it, the transmission doesn't want to upshift, and sometimes downshifts. I won't be able to look at it until tomorrow. Any advice on where to start? I figure the first is to check the accelerator cable for any kinks.