How do you test a low coolant level sensor?
Connect a ground wire (1) to the battery negative terminal. Using a sharp probe (3) attached to the ground wire, ground the coolant sensor probe (2) as shown in the illustration. Make sure a good contact is made. With the key on and the engine off, observe the low coolant light for at least 15 seconds.
What can cause the coolant light to come 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.
Is the low coolant warning bell going off?
We’ve got a 2011 KW T700 ISX. Low coolant light and bell going off, but coolant is fine. I replaced the sensor and checked the wiring and it looks good. What else should I be looking at and how do I turn off that infernal bell in the mean time? Every month 400 people find a job with the help of TruckersReport. Please Select…
What does it mean when your coolant light comes on?
Your coolant light might be signs of a more major engine problem. When you get a crack in the block or the intake gasket you will leak coolant and oil, usually slowly at first. You may not notice the difference at first, thinking that your tank is full.
What to do if low coolant indicator turns off?
Engine running, verify the low coolant indicator turns OFF. If the indicator does not turn OFF, test the signal circuit for an open/high resistance. If the indicator turns OFF, test the ground circuit for an open/high resistance. If all circuits test normal, replace the coolant level switch . Overall a great company to work for.
When to replace a car coolant light sensor?
If your car is older, the sensor has deteriorated with time and may be failing but not entirely failed. It is not a bad idea to keep an eye on your sensor’s readings. Replacing a sensor that is starting to show extreme signs of age and wear can prevent future problems.