1990 Chevrolet Corsica "heat thermostat reads higher temp" Questions

...heat. Am I correct in installing the thermostat with the spring facing inward towards the engine block? What else could be the problem? You may have a stopped-up heater core. It's a little radiator ...

...heat in cab above 95. Changed leaking radiator over summer. Since than have changed thermostat, flushed heater core and changed hoses. Engine temp won't go above175 unless I put cardboard in front. ...

thermostat..This time of year when heat is required more often thermostats can stick in the open position not allowing the fluid to heat to the higher temp needed for your heating operation....This is

...reads say 140 and just fluctuates slightly from that then I would say yes, replace the thermostat. If your gauge shows it now reaching temperature then it's just that your radiator is doing a helluva ...

thermostat so the coolant should be no lower than 196 and no higher than 206, tho up to 220 is relatively normal if it's hot out and/or you're running it hard. Oil temp is loosely regulated if at all,

...heat on high. Often , after replacing a thermostat , a large pocket of air is traped inside the cylinder head. The engine will overheat due to lack of proper coolant flow. The air must be completely ...

...higher then its over-heating and that could be the water pump or thermostat if its less than 210 then its staying open, The temp senser and the thermostat are located on the right side of the engine ...

heat is higher than ever in the interior. But the gage says cold the hoses are not that hot although the upper rad hose is a little warmer than the bottom hose Check that you are getting fluid flowing

...thermostat. It is either missing, or stuck open (you provide good info). This is why the car is not running at operating temp and why you have little heat. The no blower for settings 1-4 probably ...

...thermostat and put all new coolant in and it's still stuck on cold. I just changed the coolant temperature sensor and still stuck at cold... does anybody know what else could be causing this problem? ...