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Is this noise normal?
2005 F-350 6.0 - New to diesels and trying to learn where I can. I have a question about a noise I heard while towing my trailer uphill. I was towing my 4 place snowmobile trailer up a grade, not pushing the truck whatsoever, just taking it nice and easy. All of a sudden the engine noise changed to like someone turned a huge fan on. There was no change in the truck's performance and the noise went away after I crested the hill. Engine temperature jumped up about 10-15 degrss from where it normally sits ( around 180 degress). EGTS went up, but not to much, maybe around 850 -900.
Is that the turbo making that noise? Engine fan? Seemed awful loud for the engine fan.
Another question: What is considered normal vs. high vs. dangerous EGT's. Me EDGE programmer warns me at about 1200.