I've had thermostat replaced twice within 2 months. Initally it over heated and I replaced thermostat, then this thermostat and the second one, (service center replaced for no charge)most of the time the temperture guage needle barely moves and doesn't get hot at all.
Every once in a while the temperture guage moves close to the middle which is normal for our car. The engine is a four cylinder.
Is there a sensor that controls the thermostat, I thought it was like the old ones that just opened or closed with a spring?
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Is the fan working and blowing air but there is now heat?
If there is no heat and air is blowing out check your radiator level. If the engine coolant is too low water will not get to your heater core. Remeber check the radiator level and not just the coolant reservoir. Becareful when working around a hot car. wait til the car cools down to check the level of the coolant in the radiator.
Procedure as follows:
REMOVAL 1.Drain the coolant so its level is below the thermostat.2.Remove the inlet fitting and gasket.3.Remove the thermostat
1.Check that the flange of the thermostat is correctly seated in the socket of the thermostat housing.2.Install the inlet fitting.Tightening torqueEngine coolant inlet fitting bolt :10 ~ 15Nm (100 ~ 150kg.cm, 7 ~ 11lb.ft)3.Refill the coolant.
1.Heat the thermostat as shown in the illustration.2.Check that the valve operates properly.3.Verify the temperature at which the valve begins to open.Valve opening temperature : 80-84°C(176-183.2°F)Full opening temperature : 95°C(203°F)