The dashboard thermometor not working. Gives inaccurate reading. Where is switch and how do I replace.

Didn't know if you meant engine temp, inside heater temp reading or outside temp reading. Also, how do you know it is inaccurate? Talking engine temp, you may just have a bad thermostat or sending unit. Also, it is possible the gauge is reading correctly and you have a radiator, hoses or some other problem

Sorry should have been more specific. It's the outside temp and it's pretty obvious not matching outside temps. Thanks SamR1

how to get the outside temperature reading on the dash. it disappeared.

I recently replaced the blower motor and relay in my 99 Ford Explorer Eddie Bauer edition but it's still blowing cold air

I replace the AC Compressor but on my ford explorer 2005 but now i' m not getting the outside temp on my message center its just like this " ---F "