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'06 PSD engine suddenly starts clacking, billowing black smoke
So I'm driving home tonight and get about 180 miles into a 230 mile trip when I come to a stop light and notice the engine idling a bit rough. Thought it was strange as the truck has been running fine at highway speed, nothing unusual. Been monitoring my FICM voltage for couple weeks after throwing a P0611 code. Code was cancelled (Edge Insight monitor) and has not returned.
Anyway, I accelerate from the traffic stop and everything seems to return to normal until I start to slow down as I'm approaching another town about 20 miles down the road. I start hearing a clacking noise getting louder and louder and louder. I stop, pop the hood and the noise seems to be coming from the turbo/alternator area and quite loud. Black smoke is now billowing out of the exhaust and the exhaust tip is pretty heavily sooted. I kill the engine and sit for a short time. When I restart the engine, clacking is still there, but a bit less intense, engine idle is rough as though it is missing and black smoke is pouring out the tail pipe. I kill the engine again and call the wife for a ride home. About an 1-1/2 hours later, just before leaving the rig at the grocery store parking lot, I try the engine again. Starts, but rough idle. Clacking noise is gone, but still have black smoke billowing from the exhaust.
I get no codes whatsoever. Insight readouts appear normal - FICM voltage at 48+ volts, Battery voltage at 13.8 volts, EOC is 6 degrees below EOT (where it usually stays after I did the coolant flush & ELC procedure).
Are there other parameters I should be looking at that the Insight will display? The truck is 60 miles from home, but only a couple from a mechanic. I prefer to do the work myself, but would have to drive 60 miles with a couple steep climbs on the way.
Can anyone point me in the right direction? Truck is all stock, 93k miles, just changed air, oil, fuel filters & had the EGR valve cleaned at about 91k.