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2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 10-07-2011
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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!
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Old 10-07-2011
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well the black smoke means your engine is running super rich...try cleaning the MAF next
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Old 10-07-2011
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already cleaned that to.
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Old 10-08-2011
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Try unplugging the MAF.
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Old 10-08-2011
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did that to, no change. I have reset the computer and it comes back after a couple of minutes. cylinder six misfire? maybe the computer has gone bad.
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Old 10-10-2011
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bad injector? mine ran fine some days, but might decide to lug and misfire/run rough periodically. check resistance at injectors.
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