i have a 2002 gmc serria 2500hd and just got 35 FT COUGAR FIFTH WHEEL AND NOTICED ON SOME HUGE HILLS THE TEMP GOT TO 221 IS THIS OK IT CAME RIGHT BACK DOWN AFTER HILL??
Seems odd, granted there are many variables that need to be accounted for...but I've never hit 200...191 was the max this weekend, 23500 pounds total weight.
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