pt_mazda
+1y
i had the same problem, and it got to the point where my truck would only speed up to about 40mph. i tried everything you could think of fuel filter, spark plugs, dist. cap+new wires, cleaned carb, and tried that stuff u put in ur gas in cas water got in. but it turned out that my cat. was plugged up, i ripped it off and my truck runs great...hope it helps