Which warning light or gauge tells you when the engine coolant is too hot or too low?
Temperature Warning Light/Gauge: this light goes on when the engine temperature or the radiator’s coolant is too hot. In some vehicles, a gauge is used that would show the needle in the warning zone of HOT. If this warning light comes on while driving, STOP as soon as you can at a safe place and shut the engine off.
What does it mean when your coolant is bubbling?
rising air pressure
Bubbling indicates rising air pressure in the cooling system, which is a sign that the flow of liquid is blocked by a pocket of air. One of the most common causes is a blown head gasket, in which the air pressure inside the cylinder heads is transferred to the cooling system.
When does the coolant warning light come on?
1. Coolant Light Comes On. The engine temperature warning light on the dashboard generally appears as a thermometer with wavy lines next to it or a box with wavy lines inside of it. If this light activates while you are driving, it is telling you that your engine is hot; possibly due to a low coolant condition.
Why does the temperature warning light stay on while driving?
temperature warning light stays on while driving but coolant levels and engine temperature are fine Check that you have sufficient engine coolant in the reservoir. Check the V-belt / serpentine belt is present, not lose or damaged. Check the water pump is working. Check that the coolant system is clean and doesn’t require flushing.
What does a blue engine temperature warning light mean?
Having a blue engine temperature warning light appear on your dashboard shouldn’t concern you anywhere near as much as a red one. This simply means that your engine oil is not up to optimal efficiency due to the low temperature.
Where do I find the temp warning light on my car?
Depending on the make of your vehicle, other symbols can include the letters ‘TEMP’, or ‘ENGINE OVERHEATING’. The symbol should briefly illuminate on your dashboard when you start the car and go out shortly after the engine has started.