My first guess would be a thermostat stuck open. Replace the thermostat.
Air in the water system.
heater?AC fan does not go on? Temperature gage does not work.
Probably a bad thermostat.
Honda civic runs on cold bad sign?
i asked this question the tempture gage shows it is over heating but the engine is cold to touch
gage of temperature go to hot position but is not hot the engine check gages light come on
More than likely the thermostat is stuck open. Drain the cooling system, replace the thermostat, and install fresh coolant.
the normally position of needle in temperature gage is a half of gage.
a temperature sensor could be faulty...i have a 1994 legacy and i had the same problem...i replaced the temperature gage sensor and i have no more problems.
=A Gage is gun a 12 gage=
In the engine block of a vehicle, the part which is responsible for sending information to the temperature gauge is called the temperature gauge sending unit.
Probably thermostat sticking open , quite common , had mine changed for the same reason - (Helpfull)