Join Date: Oct 2013
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Worth posting for anyone else who might find themselves in the same boat.
My neighbor, a retired diesel mechanic, said it was the EGR valve. Said that the turbo wasn't running because the stuck EGR valve wouldn't let the RPM's get high enough. So we fired the truck up and floored it as sure enough, as soon as the RPM's got up, the turbo started screeming.
Long story short, took out the EGR entire housing and there was an incredible amount of charcoal looking stuff in there. It was dry and chunks all around the part of the valve that moves. Two cans of carb cleaner later, my truck runs like a champ. Fixed her for less than $10. Hope this helps others.