JIMNLIN wrote:
GM did have overheating issues with the Dmax LLY (??) engine . Check out some of the GM diesel websites for input on these trucks and what the fix was.....or any issue you might think of.
That's what I've learned recently. I've never seen high gauge temps, even pulling my fully loaded 40' enclosed gooseneck race trailer on a hot day, and I'd assume if EGTs were surging that high I would have seen some evidence of it. Have had the truck since new and all it does is tow duty.
Either way, I just ordered an aftermarket turbo inlet hose replacement which apparently solves this and adds some power, too. $200 is cheap insurance.
