You put an oven thermometer in the oven and check the temperature.
Hi,....to test the Thermostat......wait until it is cold....you will find it closed.....drop it into a cup/dish of boiling water.....and if its working correctly,you will see it open.
MY CAR WAS DOING THE SAME THING NO HOT AIR COMING OUT OF THE HEATER I CHANGED THE THERMOSTAT. IT WASNT THE THERMOSTAT. I GOT TO CHECKING AND THE SEAL IN THE WATER PUMP WAS BAD. I REPLACED THE WATER PUMP AND IT WORKS FINE NOW.
The water in the reservoir might boil out in your car if your thermostat is not working correctly. You might also be having an issue with your cooling fan.
Possible leak in the water recirculating system ... or ... the engine thermostat is now working correctly and needs replacement,.
Thermostat can stick open or closed. If sticks open, car will take longer to warm up because coolant is constantly flowing thru engine. If thermostat is stuck closed, engine will eventually overheat. In order for all emission systems to work properly, thermostat needs to be working. For 1995 GEO Prizm, if thermostat is working correctly, car should maintain proper operating temperature after is warmed up. If any doubt about thermostat, changev it every few years as is inexpensive and easy to replace.
if its not working.
NEED to know what you are working on.
your internet is working, your modem is working
most likely the gauge
easiest way to tell if water pump is working is to run engine until at running temp. then carefully remove radiator cap. with someone slightly reving engine, look into radiator. if the pump and thermostat are working correctly, you will see the coolant moving(circulating) in the radiator
Yes it will stop heating up...........
i change the thermostat and the temp switch but still not working