How do you remove a coolant sensor from a radiator?
2. Place a clean drain pan under the radiator, open the radiator valve and drain about two to three quarts of coolant (or just enough to drop the level below the sensor). Then close the drain valve. This will minimize coolant waste when you remove the CT sensor. 3. Locate the CT sensor.
When to replace a coolant temperature sensor on a car?
A corroded coolant temperature sensor will give an incorrect reading. It is, therefore, important to replace the coolant temperature sensor as soon as it shows signs of corrosion. Allow the engine to cool down so that you do not get burned. Place a catch pan under the radiator once you can touch the engine.
Can a low coolant sensor cause an engine to overheat?
On the opposite side of the coin, if your radiator is actually low on coolant and the light does not come on, this can cause the engine to overheat. The coolant level sensor is supposed to be a warning indicator that reduces the potential of this occurring.
Can you change the coolant in a radiator?
Although you may have collected the radiator coolant when you drained it from the radiator, it is highly recommended that you add new coolant. This will ensure that the coolant temperature sensor will work correctly. Add new coolant, mixed with distilled water as recommended by your specific vehicle manufacturer.
Why does my radiator coolant sensor need to be replaced?
However, if the light stays on for an extended period of time, the coolant level sensor or the electrical connection to the sensor may be damaged, dirty, or need to be replaced. On the opposite side of the coin, if your radiator is actually low on coolant and the light does not come on, this can cause the engine to overheat.
How do you remove a sensor from a radiator?
To remove the sensor, slowly wiggle the sensor up and down and then from left to right to loosen the connection. The sensor will be very tight on most vehicles, so it may require the use of a pair of pliers for added support. Be careful not to break the sensor end inside the radiator.
Where is the radiator coolant level sensor located?
Step 1: Prepare the vehicle. In most cases, the radiator coolant level sensor is going to be accessible from the top of the engine compartment and with simply reaching down with your hands.
How can I tell if my coolant temperature sensor is bad?
To diagnose the coolant temperature sensor, you need a repair manual for your car model to find what measurement values you should expect from the coolant temperature sensor. Connect an OBD2 Scanner and look for related trouble codes. Check the live data to see the temperature from the sensor.