00 Windstar Rough Idle and Run, both in and out of gear
I have a 2000 Windstar that has a very rough engine at idle, running at all speeds, in gear and in neutral. It acts as if a spark plug wire has been disconnected as far as behavior. There is no trouble code that would explain it and the check engine light is NOT on. I had a Ford dealer look at it and they said everything with the engine is fine. The front wheels jerk or vibrate when it is running, both in and out of gear. The dealer's mechanic said it could be the torque converter, a transmission problem or a camshaft balancer in the engine that they said they have never seen go bad. The transmission fluid looks fine, and does not smell burnt.
bad egr or IAC-idle air control.
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