Quote:
Originally Posted by 307diesel
Who's to say that your guage is correct,
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This.
My 12v gauge always says its running cold. The previous owner installed a separate water temp gauge under the dash. When I first bought the truck, it would run from 170-190 for hours on end, always up and down. A big rad will do that. That t-stat died on me about 2 years ago, got another one from Cummins, this one hold temp real steady, usually cools down when I'm coming off the highway slowing down in the winter.
I wouldn't worry about it. Your truck isn't the first to do it, and it won't be the last.
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'98 3500 2wd, 24v, 5 spd, p-pumped
'98 2500 4wd, 12v, 6 spd, VP'd
'02 VW Jetta, 5 spd.
My p-pump conversion pics