How do you test a 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.
How do you test a 2 wire coolant level sensor?
The first two wire system you can measure if the circuit is open or closed using the resistance setting. When there is no fault (i.e. the coolant level is OK) it should be open. It closes on fault. You can take out the level switch and move the arm up and down to check its working.
What is a coolant level module?
The Muirhead® Coolant Level Kits are designed to monitor engine coolant levels on motor powered equipment to prevent premature engine failure. This is due to the fact that gauges and temperature switches rely on sensing the coolant temperature and when there is no coolant, the gauges cannot sense the temperature.
How can you tell if your coolant is low?
One tell-tale sign of low coolant is the high-temperature gauge on the dashboard. This gauge is designed to tell you when the engine is getting too hot. Most often, the gauge should stay near the center of the H and C symbols.
How to lower the low coolant level sensor?
1. Park the vehicle on a level surface, shut down the engine and set the parking brakes. Chock the tires. 2. Drain the coolant from the cooling system enough to get it below the level of the low coolant level sensor. 3. Disconnect the batteries. 4. Disconnect the wire harness from the sensor. 5. Remove the sensor from the surge tank. See Fig. 1. 6.
How to check the coolant level on a diesel?
(Unfortunately we do not have a 1993 manual in the FAQs): The coolant level indicator circuit is shown in figure 7. 1. Turn the ignition switch to the “ON” position. connector is properly installed on the module. Go to step 2. module. Replace or repair as required. 2. Turn the ignition switch to the “ON” position and sensor on the radiator.
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.
How does the coolant sensor on a radiator work?
The coolant sensor is an electronic piece that measures the level of coolant in the radiator. This sensor measures the level of coolant inside the radiator when it is cool; as warm or hot radiator fluid will expand as it heats. When the sensor works properly, it will illuminate on the dashboard or trigger a check engine code to be displayed.