Outside temp gauge peterbilt 379 mounted in the rpm is now reading in Celsius not F why?
Year model2005. Is it a sensor or what?|||Some one hit the button and changed it. check owners manual on how to switch it back. There should be buttons on the dash to scroll thru the computer on the dash.
Hit the trip button 4 times really fast and it will change back over. Its the button on the speedometer
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