Hey I have a 95 Mercury Mystique that I finally got running decent. Well....sort of. I get it running and it will run fine but then after it warms up I hear a knock from the motor after reving it. I replace EGR components as suggested by some on here and its still there. The car is guttless when I take it around the block, it seems to sputter and pop while driving it. What should I look into?
