mystery 3.0 problems
I have a 2002 Ranger 3.0. I have replace the coil plugs and wires. I have replaced the fuel filter. I have cleaned the idle air control valve and check for manifold leaks. cleaned the air filter. Still getting the same code cylinder 6 misfire. The engine will barely idle and shakes the whole truck continously but drives great and same gas mileage. however new problems began today. now trying to come to a stop is almost impossible because the engine wants to idle at 2000 rpm. after a minute or to it finally slows back done. I also have black smoke coming out the tail pipe and sucks to accelerate now. I dont know what else to do. PLEASE HELP ME!