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Why does your temperature gauge read hot and your heater go cold at idelle?
Wiki User
∙ 13y ago
You have an air pocket in your cooling system. You either need to bleed out the system or, if it keeps reoccurring, replace either the intake or head gaskets. Also, try replacing your cap, it normally isn't the problem but hey, you may get lucky. A leaking cap will let air in also. Air in the system gets in the hose by your thermostat or water pump and keeps water from flowing to the heater core. Water gets trapped in the block and overheats.
Wiki User
∙ 13y ago
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Why does the heater blow cold and temperature gauge stays on cold on a 1994 Chrysler LeBaron?
Most likely cause is a failed engine thermostat.
Why does the temperature gauge act erratic goes from cold to hot quickly then drops to cool When in red there is no heat from heater When in cool there is hot air from heater?
Low coolant, check when engine is cold.
Just had intake gasket fixed then turned around and had to get the heater core fixed now it is not blowing out hot air out of the heater why?
Check the temperature gauge. If it is running cold, replace the thermostat.
The temperature gauge of your Mondeo stays cold and there is no heat from the heater so what could be causing this?
A common cause is the thermostat being stuck in an open position.
1982 Chevy C10 temperature sensor reads cold even when the truck is warm. Warm air from the heater. Is it the sensor or the gauge?
It is easier and cheaper to replace the temperature sensor--try that first
Why does a cars temperature gauge go up to the red linewhen driving and the heater starts blowing out cold air and does it periodically?
sounds like the thermostat is sticking
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.
Heater working fine temp gauge showing engine is cold?
Could be a failed engine coolant temperature sensor. Easy enough to replace and not too expensive.
2003 dodge ram heater won't work it's only blowing cold air?
Look at the engine temperature gauge. If it goes over 200 degrees, change the thermostat as it is stuck and therefore not allowing coolant to the heater core.
Why does Temperature gauge goes up and heat blows cold air?
Your low on coolent! system set up to protect engine first so routs coolent away from heater.
Why would an engine run cold temp gauge says cold and the heater blows slightly warm air?
change t.stat
How do you fix the heat in a 94 Chevy S-10?
add water to the radiator. believe that. if there is no water flowing through the engine, your heater will only blow cold air. if there is no water flowing through the engine and your heater is only blowing cold air, and not HEATING, your heater core is probably going out or will be soon. most people believe that if you have no water in the engine then your temperature gauge will run hot and you will know that you are overheating the engine. WRONG! your temp gauge only measures WATER temp. But if there is no water to measure, there is no temperature rise showing on the dashboard gauge. if you have NO WATER in the engine you can seriously overheat your engine and not know it because the gauge is not getting any hotter than usual (sometimes your gauge will even read cooler than usual).
