Since I purchased the truck about 3 months ago, 2017 2500, the coolant temp has always stayed at 192, doesn't matter what the temp is outside.
Last week, the temp went up to 194 driving and over 210 when sitting at a stoplight.
I'm thinking a thermostat.
I never heard the fan kick on, but didn't think they did until around 220 anyway.
Any ideas?
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