Re: Takin' It On The Road.
Remember a turbo under load may run at tens of thousands of RPMs. Could be a little turbo run on. I would think that your truck had a HD fan clutch, the kind you can hear or even feel kick in or out depending on engine temperture, speed, and road speed. When this type of fan clutch engages it sounds like a banshee moaning.
Originally Posted by Spark
I don't see a Super Duty having an electric cooling fan. I could be wrong, stuff happens and things change.
The engine or heater/AC fan may be running on after shut down, and you're noticing it now, or you could have a fan belt idler or tension pulley not quite snug enough.
The engine smoke is worrisome. If the turbo seals are leaking, you will pump engine oil past the bearings and directly into the intake or exaust manifolds, creating smoke. Watch the engine oil level closely for a while. If you kept your old turbo look into rebuilding it and keeping it as a back up or re-installing it on your truck. I can guarantee you (almost) that the price the Ford dealer quoted your wrench is for a rebuilt unit.
There is a cooling system additive used to prevent water pump cavitations in selected Henry Diesels, find out if this additive is recomemded for your model.
Scrapfe---Never believe anything in politics until it has been officially denied.--Otto von Bismarck.