How does a Peterbilt coolant level sensor work? The coolant level sensor works with a float that contains a ring magnet. The ring magnet closes the reed switch inside when there is enough coolant in the radiator
Radiator
Radiators are heat exchangers used for cooling internal combustion engines, mainly in automobiles but also in piston-engined aircraft, railway locomotives, motorcycles, stationary generating plant or any similar use of such an engine.
How does a coolant level sensor work on a car?
The coolant level sensor works with a float that contains a ring magnet. The ring magnet closes the reed switch inside when there is enough coolant in the radiator. Once the coolant drops to a certain level, the float follows the level, the reed switch is removed from the magnet, and contracts the reed switch open.
How long does it take for coolant level sensor to ship?
Order now for your item to ship within 48 hours! Coolant Level Sensor, is engineered from high-quality, corrosion-resistant materials to accurately and reliably alert the onboard computer system to low coolant levels. Replacement helps prevent overheating and possible engine damage.
How do I know if my coolant level sensor is bad?
Another symptom of a problem with the coolant level sensor is low coolant. Engine overheating. The engine overheating is another indicator of a problem with the sensor. One may also ask, can you drive with a bad coolant sensor?
How does a reed switch work on a coolant float?
Once the coolant drops to a certain level, the float follows the level, the reed switch is removed from the magnet, and contracts the reed switch open. Click to see full answer.
How does a 3 wire coolant level sensor work?
0:072:26NTK - Coolant Level Sensor - YouTubeYouTubeStart of suggested clipEnd of suggested clipSituation the sensor will report that send it off and then the low coolant light will illuminate or.MoreSituation the sensor will report that send it off and then the low coolant light will illuminate or. Message will show up in the drivers display.
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.
What happens if you unplug coolant level sensor?
Unplugging the engine coolant sensor while the car is running will likely cause the engine to stumble and run rough. The engine light may not come on imminently, but a DTC (Diagnostic Trouble Code) will be logged in the PCM.
How do you check the coolant level on a Cummins sensor?
0:241:25cummins L9 code 0196 - coolant level sensor circuit. How to diagnose DIY ...YouTubeStart of suggested clipEnd of suggested clipAnd a test for a bad sensor all you have to do is disconnect the sensor. And see how the circuitMoreAnd a test for a bad sensor all you have to do is disconnect the sensor. And see how the circuit reacts to that now we should be getting a different code if the circuit and the ecm are good.
How do you know if your coolant sensor is bad?
If you notice more fluctuation in your engine temperature or it looks higher or lower than usual while you're driving, it could be the engine coolant temperature sensor. In particular, if your engine doesn't seem to be warming up as it typically does, you should have a mechanic take a look at your cooling system.Aug 6, 2020
Does the coolant temp sensor control the fan?
As the control system receives the temperature from the CTS, it may trigger the cooling fan to either shut off or turn on. Additionally, it may signal the need for a richer fuel mixture or open the exhaust gas recirculation.Jan 26, 2017
What can a faulty coolant temp sensor do?
If the coolant temperature sensor malfunctions, it can transmit a false signal to the computer. And the response of the computer may unbalance the timing and fuel calculations. It is also common for a coolant temperature sensor to fail without warning and send permanently cold signals to the computer.Sep 15, 2021
Can a coolant temperature sensor cause no start?
The sensor will not cause a no start. It could cause a hard start and a rich or lean condition only.Jan 10, 2017
How do I turn off my coolant temperature sensor?
With the engine and coolant entirely cooled down, disconnect the battery. ... Remove any plastic engine covers. ... Locate the coolant temp sensor. ... Partially drain the cooling system, or perform a coolant flush, if it is due. ... Disconnect the electrical connector from the sensor by pushing on the tab and pulling the connector.More items...•May 7, 2021
How does a 4 wire coolant level sensor work?
The coolant level sensor works with a float that contains a ring magnet. The ring magnet closes the reed switch inside when there is enough coolant in the radiator. Once the coolant drops to a certain level, the float follows the level, the reed switch is removed from the magnet, and contracts the reed switch open.Jan 14, 2016
How do you test a coolant level sensor with a multimeter?
When the engine reaches operating temperature, insert the positive probe directly into the coolant. Rev the engine to 2,000 rpm and place the negative probe on the negative battery terminal. If the digital meter reads . 4 volts or less, your coolant is in good condition.Aug 27, 2020
What does a coolant level module do?
The purpose of the coolant level module is to minimize galvanic corrosion by reducing the amount of electrical flow through the coolant level sensor. The ECM continuously runs diagnostics on this circuit when the key switch is in the ON position or when the engine is running.Jan 11, 2017
What is the magnet in the coolant level float called?
You will see two metal contacts next to each other. This is called a reed sensor. The magnet within the coolant level float passes near the area that houses the coolant level sensor within the expansion tank. This magnet is oriented such that it is the same polarity as the metal inside.
Does coolant level sensor come in a sheath?
When you buy your coolant level sensor, it may come in a sheath. People have wondered whether this sheath can be taken off or not. The truth? It doesn't matter! It works off of magnets.
Does coolant float touch coolant?
We all know that it doesn't touch the coolant, and that the coolant float contains a magnet that, when it goes past the level sensor, turns on the "low coolant" light. That's great and all, but I wanted to know how?!
Coolant Level Sensor for a Peterbilt 389
Use the fitment form at the top of the page to select your exact year and engine type for your Peterbilt 389.
Dorman - HD Solutions - Engine Coolant Level Sensor (Part No. 904-7632)
Our heavy duty, coolant level sensor, is engineered from high-quality, corrosion-resistant materials to accurately and reliably alert the onboard computer system to low coolant levels. Replacement helps prevent overheating and possible engine damage.
Dorman - HD Solutions - Engine Coolant Level Sensor (Part No. 904-7631)
Our heavy duty, coolant level sensor, is engineered from high-quality, corrosion-resistant materials to accurately and reliably alert the onboard computer system to low coolant levels. Replacement helps prevent overheating and possible engine damage.
What to do if the coolant indicator is not turning 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.
What to do if all circuits test normal?
If all circuits test normal, replace the coolant level switch.
What to do if the indicator turns off?
If the indicator turns OFF, test the ground circuit for an open/high resistance.
Where to install 3A jumper wire?
Install a 3A fused jumper wire between the signal circuit terminal and ground.
