Have a 1997 GMC half ton. Has the 350 vortec in it. Fuel pump died while driving it. Towed home. Did the old dump bed trick to change the fuel pump. pull 6 bolts and loosen the 2 close to the tailgate and lift the bed up from the front. Easy acces to the pump.
Now, it stutters. And is running rich. Also shifts a little funny. It ran perfect before. All vacume lines are hooked up. No leaks.
Changed fuel filter and pickup screen too. But, nothing got in the lines anyway. Or in the tank.
Help..