Low coolant level
#5
Ok. There is a very common leak on those from the plastic y pipe fitting where the left turbo coolant return line enters it around the top of the engine and between the drivers side of engine and the reservoir. Make sure you don't see some evidence of coolant leaking there.
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#8
Outstanding, I'm at 48k so maybe I'll be able to add that to my list. Absolutely love the truck but have had enough issues that after barking a few times I was handed my $4600 extended warranty on the arm...
#10