Quote:
Originally Posted by mcbigbuck
Mine did same thing a month ago here in montana and it was a bad thermostat. Sounds funky but it was the fix. Temp gauge indicated warm also which confused me, but Ford fixed it. Good luck
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The only actual oem "gauges" in my truck are the speedometer and the tach. All the others are (nearly worthless) idiot switches that just go to the middle when their sensor senses a specific setting.
You may be able to get an actual coolant temp reading from the odometer display using the methods described in the owner's manual. If your water temps drop significantly when you're at idle, that would be an indication of a stuck open thermostat.
