I have been having an increasing problem when running through the gears of my 02 6-speed 3.0, please help. In first and second when I slightly get on it, I feel hesitation in gears 1,2, and 3. I can slowliy raise the rpm's and its not too smooth. I can feel the whole car studdering and a knocking noise when it happens. It feels like the clutch might be giving out, or the transmission is skipping. My car seems like its not as powerful because of the studder. I think this might be one of four things... Fuel Filter, Fuel Pump, Clutch plate, or transmission... Overall something is slipping, and any help would be great.