1997 Ford Expedition Q&A

1997 Ford Expedition Question: I have a temperture gauge that is reading almost HOT almost to the red.

I have a temperture gauge that is reading almost HOT almost to the red. But when I lift the hood It's running OK and doesn't seam to be hot at all. I think its the sending unit or the gauge what would I check first and How -
Answer 1
You could have defective coolant temp sending unit or the computer might be acting up. -
Answer 2
Also, the thermostat may need replaced. It may have froze up in the full open position. -
Answer 3
have you thought about replacing the "thermostate" their are ones that you can purchase for a few dollars that will run cool when its hot -