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Old 12-29-2021, 11:23 PM   #15
aleekat
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Re: 2015 Yukon XL temp gauge at 0 and radiator fan running constantly

Quote:
Originally Posted by dorlow View Post
So, lasted a few weeks and broke again. ill have to look at the resistance. So, if the resistance is outside normal, how do i fix it? I looked at the harness a few weeks ago and it looked good to me...

Also, how do I read the chart? I'll be working on the car when it's the temp outside, so the engine will be about the temp is outside. So, it's usually around 40-60 degrees everyday. That would put me in the 40 - 70 degree range which would read 7500 - 3400 ohms. That's a pretty big range.
You're reading the chart wrong. It's not outside temp, it's the temp of the coolant. Just Google how to test a coolant temp sensor. I use a bowl of water cold, then hot measuring the water temp.
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