Why does the coolant warning light came on?
The most common reason for the coolant light to become illuminated is simply that the coolant level is too low. There may be a floating sensor in your coolant tank that triggers the warning light when the level drops. Low coolant levels are usually caused by leaks, either in the reservoir or somewhere in the lines.
What should coolant look like in Reservoir?
The reservoir should be clear plastic, so you can easily see the level of coolant and the maximum fill line. Before you top off your coolant, inspect your current coolant for any unusual coloring or contaminants. Coolant comes in a range of colors, so it’s normal for it to be red, blue, yellow or green.
Where is the coolant level warning light on?
Depending on the vehicle, this message can appear on the driver information center in the middle of your instrument panel. If the light comes on, it’s cause for serious concern. The consequences of a low coolant level can include overheating and the destruction of your engine.
What should I do if my coolant level is too low?
If you’re familiar and comfortable with cooling system care and maintenance, check that there is coolant in your reservoir, and that your engine shows no signs of overheating. If this is the case, you should be able to drive directly to a repair shop to have any necessary repairs done.
What do the coolant levels on my car mean?
It will have levels marked “Min” and “Max,” or “Low” and “Full,” that indicate the actual coolant level when the vehicle’s engine is cold. Your owner’s manual has the correct information for your vehicle.
How does a coolant level sensor work in an expansion tank?
The coolant level sensor can be a float-type device, which activates the warning light when a low coolant level sends it to a low position in the expansion tank. Or it can involve electric sensors with two electrodes that are placed at the bottom of the expansion tank.