[herefordman]

My guess would be change the fuel filter first, its along the inside of the frame rail on the drivers side, just to the rear of the front door, and its an easier thing to swap than the pump first out, and cheaper. The pump is more difficult to change and requires dropping out the whole tank, as the pump is inside and only accessible from the top through the float level access hole. Change the filter it really is more likely the problem, especially if you haven't changed it at all.