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The heater core is just like having another radiator, only smaller. Once you turn your heat on, and force air through the heater core with the blower motor, the engine's coolant's temperature is lowered, and circulated back to the engine, probably right where the temperature sensor is located.
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Why would a 1999 Nissan altima temperature gauge fluctuate and car is not overheating?
My Altima had that problem and it was the water pump going out. It started with temperature gauge was moving, but then it started leaking and finally the heater stopped being warm at idle.
Your temperature gauge indicates overheating but water and oil levels are fine and heater works what is wrong?
If you are absolutely sure you do not have air trapped in your cooling system then you may have a defective gauge if you are getting heat through your heater. Usually I would say you have a coolant flow problem with either a stuck thermostat or a bad water pump but if you have heat from your heater, then you must have circulating coolant in your system. I would check the gauge or the sensor.
Could someone help. I have a 1992 Buick Rivera and the temperature gauge in car is going toward the red I turn off the heater and it drops away. is it some kind of sensor heater core thermostat?
The heater core may be plugged or not flowing properly. This would not allow the water to flow properly to cool the motor. Also you may have a bad or loose ground wire to your heater switch, this will give you a false reading on the temperature gauge.
Why does heater blow cold at idle only blows hot air when accelerating temperature gauge shows normal Chevrolet Impala 2008?
If the coolant level is okay, I would suspect a restricted heater core. Try flushing the heater core.
1998 transport over heating. when the temp gauge is normal heater is blowing hot when temp gauge gets hot heater blows cool replaced thermostate Why would it be over heating?
This would indicate that the system is low on coolant when the gauge is hot. Not enough coolant to service the heater core.
Why doesnt your temperature gauge on your 1995 ford mustang work?
What are you talking about? My temperature gauge works fine. Though, if it wasn't I would check the temperature sending unit.
Your heat is not hot in your 2001 expediton but it is warm would it be the heater coil?
Have you noticed your engine temperature gauge running cooler than usual ? The thermostat for your engine cooling system could be sticking open
What would cause the temperature gauge not to work on your 1998 Pontiac Sunfire?
temperature gauge not working can be caused by a bad temp sensor in engine, a bad gauge in dash, or a bad fuse
Why would a heater turn on and off on its own?
You set a heater to a certain temperature and when it reaches that it turns off.
Why would your 96 accord be overheating when its full of fluid and you replaced the thermostat and the temperature gauge doesnt go past a quarter and you smell antifreeze under the hood?
It could be that your heater core is blocked or damaged somehow.
Your temperature gauge would go sraight to hot when you would start your car so you was told to change the thermostat Now when you turn on your heater it just stays cold How do you get your heater to?
First make sure you have the correct temp thermostat for your car. If you went with a cooler one, your heater won't work correctly. If you have the right thermostat, you probably have a bad heater control valve or your adjusting cable isn't connected. Check those things out. Your heater core could also be bad.............if the car is not overheating any more I would check that.
Would antifreeze coming out of the overflow cause the temperature gauge not to work?
no you need to replace temperature sinding unit
