Why does my car have a low coolant sensor?
If you blow a hose or get a rock through the radiator, low coolant is the earliest warning you can get. By the time the metal registers as being hot, it might be too late, though an Engine Watchdog will obviously be heaps better than the factory gauge. You can set an alarm to go off at any temp you select.
When does the low coolant level warning light go out?
When you start the engine, the low coolant level light should come on for a second or two and then go out. If it doesn’t go out, either the coolant level is too low or there is a problem with the sensor system.
What should the temp of the coolant sensor be?
Check that the temperature value of the CTS is around 80-90c when the engine is hot. A lot of engine coolant temperature sensors have two wires and the sensor is controlled by Ohm. Get a wiring diagram and find out what ohms you should have at a specific temperature to check the function.
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.
What does a low coolant sensor do?
The sensor is designed specifically to detect low coolant, so if the level in the reservoir drops low, and the light does not come on, that may be an indication of a problem with the sensor or perhaps the wiring.
What does a low coolant sign mean?
The low coolant level warning light is part of a system that includes a sensor inside your cooling system’s expansion tank. 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.
What happens if the coolant is low?
As the coolant gets dangerously low especially for an extended period of time, it can warp the heads and damage other parts of the engine. Another leak can occur at the Heater Core which mostly happens due to a lack of antifreeze in the system.
Is it safe to drive with low engine coolant?
Driving with low engine coolant is never a good thing to do. It can create air bubbles in the system, which in the worst case can damage your engine seriously. Here are a few things that can happen in your engine when you are driving with low coolant.