Temp gauge reading low. Replace thermostat?
Just recently noticed that the engine temperature gauge in the dash cluster is reading low. It usually reads just under the 3 o'clock position. Now it is at about the 4:30 position. Moves up or down slightly depending on driving situation. Also, not much heat from the heater.
Should I just presume it is the thermostat and replace it?
Anything else it could be that should be ruled out?
Thanks.
Bill Z
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