I really think my engine is not getting up to its needed temperature but I need to know what your trucks are running at before I know. Here's what mine sits at after almost 45 minutes of city driving.
Yeah, operating temp should be a tick or so under 210. That said, it's likely not a cooling system issue, but rather the temp sending unit that's shot. Relatively cheap fix.
Well, the sending unit is cheap, so it's not an expensive part to toss at it.
If not - find someone with a non-contact thermometer, and see how hot the thermostat cover / water outlet is, and how hot the top of the radiator and the upper radiator hoses are.
If they're consonate with a 210F temp, you're good, it's just the sending unit. If they're consonant with a 140-150F temp, you've got a problem.
If they're consonant with the lower temps, I'd check the thermostat first.
See, I thought about that but wanted to be sure. I know I have a stock thermostat and a 3.9.
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