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Joetech 07-09-2007, 05:12 PM I have an 04' DMax with about 27k miles, this past weekend I was pulling by boat up a pretty steep grade and I noticed that my water temps went up to about 230-240, I had the AC off and it was about 105 outside, is this normal? I know in my old gas truck I used to pull the grade when it was hot and the temp wouldn't go above 195. I also noticed that just normal driving the truck runs just shy of 200degrees is this normal? coronetrt101 07-09-2007, 05:20 PM This seems to be the norm with the Duramax... The temp will shoot up and then the fan clutch kicks in and drops the temp. The fan sounds like a hurricane when it kicks in. Turbobruce 07-09-2007, 05:31 PM I have an 04' DMax with about 27k miles, this past weekend I was pulling by boat up a pretty steep grade and I noticed that my water temps went up to about 230-240, I had the AC off and it was about 105 outside, is this normal? I know in my old gas truck I used to pull the grade when it was hot and the temp wouldn't go above 195. I also noticed that just normal driving the truck runs just shy of 200degrees is this normal? Boy do you have a lot of reading to do.:( Your model year if it is a lly is a known overheater. There is a fix though.:) Start with the overheating threads. It should take you a month or so to read. kneedrager428 07-09-2007, 06:12 PM Here you go man...enjoy. I loved reading about the problems after I recently bought my truck and found this site... http://www.dieselplace.com/forum/showthread.php?t=146651 Unit453 07-09-2007, 06:18 PM Here's the link Joe in case you missed it.... http://www.dieselplace.com/forum/showthread.php?t=146651 We'll continue the discussion there. | ||