Kenworth low coolant light

Jul 30, 2023 · The Kenworth T880’s temperature warning light indicates the engine is running too hot. This light typically shows that the cooling system is not functioning correctly and can be caused by various issues, including a low coolant level, a faulty thermostat, or a faulty water pump.

Kenworth low coolant light. 4. Inspect the low coolant sensor and the wiring harness area near the clipping points and within two feet of the sensor connector for broken or chafed wires. See Fig. 1 and Fig. 2. 12/15/2020 f547422 1 2 1. Clipping Points 2. Low Coolant Sensor Connector Fig. 1, Inspection Areas for Detroit Engines Coolant Level Sensor Wiring Repair 54-337 ...

Hi, I have kenworth t680 2018, when the coolant level goes down and coolant light comes on after few seconds engine light turns on requiring to stop the truck in less than a min. After, I stop the truck coolant level comes back to normal.

If low coolant light is on and sensor/wiring has been checked, your problem is the surge tank itself. There is a "floating" metal slug that the sensor reads. That gets stuck. Only fix is to replace tank. Bad Paccar design. I have done many.the ECM will activate the fan at 103C coolant temp, 73C inlet air temp, with engine brakes if optioned in the config and will use the A/C pressure switch as input to the ECM that will also activate it. several sensors and switches feed the ECM data that will influence when it earths a single pin that completes the electrical circuit to the pneumatic …May 15, 2023 · If you notice that your coolant light remains on even after you fill up the tank, there are several reasons why this could be happening. For one, the sensor itself might be bad, or the connection to the sensor may be corroded, damaged, or loose. Low coolant levels can also indicate that there is a leak in a hose, a water pump, or some other ... inches for K370 (279.4 mm). It is recommended that the leading edge of the body be mounted a minimum of 4 inches (102 mm) behind the cab. The result is a minimum back–of–cab clearance of 17.3 for K270 and 15 inches for K370 (381 mm) from the front axle to the leading edge of the body (A).Summary. The engine coolant over-temperature light warns about an overheating engine. Common reasons for an engine coolant over-temperature alert include coolant leaks, faulty cooling parts like fans or water pumps, and internal issues with the engine. It’s unsafe to keep driving with an illuminated temperature light.

Speak to a service advisor. (419) 684-9388. Prevent overheating in your Kenworth T800 with our comprehensive guide to coolant system maintenance. Learn about key components, signs of overheating, common causes, regular maintenance checks, and tips for both fleet managers and truck drivers.TRP® ELC is a top-tier coolant that delivers these cooling system protection benefits: Total cost of ownership savings; Ease of maintenance – no SCA’s; Improved heat transfer – …Kenworth T800 low coolant Discussion in 'Trucks [ Eighteen Wheelers ] ... I removed a gallon and never saw that yellow light. Kenworth T600 2005 with cummins cm870.4. Inspect the low coolant sensor and the wiring harness area near the clipping points and within two feet of the sensor connector for broken or chafed wires. See Fig. 1 and Fig. 2. 12/15/2020 f547422 1 2 1. Clipping Points 2. Low Coolant Sensor Connector Fig. 1, Inspection Areas for Detroit Engines Coolant Level Sensor Wiring Repair 54-337 ... Introduction. Kenworth, a renowned name in the commercial trucking industry, has consistently delivered top-notch heavy-duty trucks, and the T880 is no exception. Whether you're a truck owner, a fleet manager, or someone deeply involved in the commercial trucking sector, understanding the common repairs for the Kenworth T880 is essential for maintaining optimal performance and minimizing downtime. As you have probably already guessed, the most likely reason for your Low Coolant Light to be on is…because your car is low on coolant. Occam’s Razor strikes again. Your European car has a coolant level sensor with a floating-level which rises and falls with the coolant level in your radiator. If the level falls below a critical amount of ...Nov 14, 2023 · Yeah so I don't get these codes . No codes active only code that would be active is when I unplug the sensor then code 195 becomes active but low coolant light goes away. But if I plug the sensor then code 195 inactive and low coolant on . I cleared the codes and 0 codes but low coolant comes on No matter the situation, Advance Auto Parts has the Engine Coolant and Antifreeze product you desperately need. We currently carry 15 Engine Coolant and Antifreeze products to choose from for your 1997 Kenworth T800, and our inventory prices range from as little as $11.99 up to $25.99. On top of low prices, Advance Auto Parts offers 4 different ...

inches for K370 (279.4 mm). It is recommended that the leading edge of the body be mounted a minimum of 4 inches (102 mm) behind the cab. The result is a minimum back–of–cab clearance of 17.3 for K270 and 15 inches for K370 (381 mm) from the front axle to the leading edge of the body (A).Mar 29, 2023 · Red Brake Light: This light comes on when there is an issue with the brakes. It could be something as simple as low brake fluid or a more serious problem such as a brake pads that need to be replaced. Yellow Coolant Light: This light comes on when the coolant level is low. This could be due to a leak in the system or simply because the coolant ... Advance Auto Parts has 2 different Coolant Level Sensor for your vehicle, ready for shipping or in-store pick up. The best part is, our Kenworth W900 Coolant Level Sensor products start from as little as $71.99. When it comes to your Kenworth W900, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with ...Kenworth T680 Cooling System Switches, Sensors & Relays. Sorting. Sort by. 1 - 2 of 2 results. Dorman HD Solutions® Engine Coolant Level Sensor. 0 # sp218869. Engine Coolant Level Sensor by Dorman HD Solutions®. ... Replacement turns off the low coolant indicator light Direct replacement for a proper fit. $20.20 - $67.25.As you have probably already guessed, the most likely reason for your Low Coolant Light to be on is…because your car is low on coolant. Occam’s Razor strikes again. Your European car has a coolant level sensor with a floating-level which rises and falls with the coolant level in your radiator. If the level falls below a critical amount of ...This reliable sensor replaces the OE number KZ359001, ensuring a perfect match and seamless performance. With its precise measurements, you can accurately monitor your coolant levels and prevent any potential issues. * High Quality Coolant Level Sensor. * 3.062 Inch. * 4.437 Inch Length. * Sold Individually. * Warranty On Coolant Level Sensor ...

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I hacked a solution to the problem with a magnet and 2022 version of baling wire. All alarm lights and sounds are off and truck runs fine. Just do your precheck and eyeball the antifreeze reservoir, keep an eye on your engine temperature gauge and use your nose to sniff out any antifreeze odor. You don't need no stinking low coolant sensor.Just make sure you check the coolant level daily. Most common problems are either the level sensor is bad, pins on wiring connector to sensor bad/spread, or the float is stuck at the bottom in the coolant tank. I am a Kenworth dealer tech and this is a very common issue. My 2022 t680 will throw a coolant code too.Upfront, Transparent Price. ( 191,118) Low water sensors are more commonly known, or referred to, as coolant level sensors. The purpose of these sensors is to alert the driver of low coolant level in the engine cooling system. When coolant level in the engine is low, the cooling system cannot adequately remove excess heat from the engine.MotoRad® Engine Coolant Temperature Sensor (1TS1462) 0. $11.64. Walker Products® Engine Coolant Level Sensor (1009-1013) 0. $31.56. Clear All. We offer a wide variety of semi truck parts and accessories from brand names that earned the respect of professional drivers and mechanics. Get great deals on Kenworth T800 cooling system switches ...International. Mack. Volvo. Other Rides. All Products. Get your engine running cool and clean again with this reliable aftermarket Kenworth coolant level sensor from Automann at Raney's Truck Parts! Matches OEMs: N9267001, S5950.

Unplug the sensor plug, and reattach the reservoir bottle. The Low Coolant light will not come on anymore, but you will now need to keep tabs on the antifreeze fluid level in the reservoir by occasionally checking the fluid level. One thing to consider when looking for an adhesive to fix this problem is the temp range the epoxy is rated for.Jan 13, 2023 · In this video I am explaining how to bypass coolant level sensor in case when you do have correct level of coolant, but your truck shows RED CHECK ENGINE LIG... Prestone HOAT or hybrid-OAT antifreeze is a low silicate-based automobile coolant infused with neutralized organic acids that protect engine parts from corrosion. This extended-lif...0. $11.64. Walker Products® Engine Coolant Level Sensor (1009-1013) 0. $31.56. Clear All. We offer a wide variety of semi truck parts and accessories from brand names that earned the respect of professional drivers and mechanics. Get great deals on Kenworth W900 cooling system switches, sensors & relays at TRUCKiD.Trucks CommercialSep 8, 2016 · What the coolant temperature warning light means. On engine startup, the warning light will illuminate for a second or two to check the bulb and should then go out. If the warning light is illuminated even after startup, it indicates that the car’s computer has detected an issue within the system. The most common reasons for the warning light ... MotoRad® Engine Coolant Temperature Sensor (1TS1462) 0. $11.64. Walker Products® Engine Coolant Level Sensor (1009-1013) 0. $31.56. Clear All. We offer a wide variety of semi truck parts and accessories from brand names that earned the respect of professional drivers and mechanics. Get great deals on Kenworth T800 cooling system switches ...Jul 9, 2014 · Coolant level sensor - my head 'splode. 2007 C5500, LMM, 657,000 miles. Our twins have always had troubles with the coolant level sensor and this little gem will shut down the engine. Yesterday #1 was out in BFE and the low coolant light came on then the engine shut down. Usually, they would just wrap the two wires to the sensor together and be ... It’s easy to turn a string of non-blinking Christmas lights into a string of festive twinkling lights. To reduce the risk of shock, Lowes emphasizes always unplugging any string of...The price of repairing or replacing the coolant reservoir varies based on the mechanic fee and the kind of car you drive. But averagely, it will cost you around $130 to $230 to replace the reservoir. Fix manifold gasket. The repair cost of a faulty intake manifold gasket can range from $200 to around $600.Mar 4, 2013 · The coolant sensor is around $150.00 @ kenworth. And I got a new coolant tank for $300. I replaced myself and it worked and stopped the issue. The coolant tank comes with a new sensor already installed. These new tanks have some kind of float built inside and they break after a few years. bigstank, Dec 6, 2017. #8. 2018 Kenworth T680. It has low coolant or Open in coolant sensor fault 111 FMI 3.it keeps weeping we replaced coolant tank with aftermarket tank and used original sensor as well but it doesn't. ... Isuzu NPR vin#***** We have an issue with an intermittent low coolant light (no fault code), and the red warning light with x thru it for shutdown. ...

8 posts · Joined 2014. #1 · Dec 26, 2014. On my wife's 2012 ML-350 Blutec the "low coolant level' message light has started coming on. I've checked the coolant level and it's right up to the proper level. I quickly checked with our repair guy (who recently serviced the vehicle, checked everything and topped up all the fluids) and he thinks he ...

Advance Auto Parts has 2 different Coolant Level Sensor for your vehicle, ready for shipping or in-store pick up. The best part is, our Kenworth T800 Coolant Level Sensor products start from as little as $71.99. When it comes to your Kenworth T800, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with ... Mar 1, 2020 ... Freightliner STOP engine light on? Antifreeze leak? (Easy Fix Owner operators). DESI TRUCKERS IN U.S.A•53K views · 16:24. Go to channel ...0. $11.64. Walker Products® Engine Coolant Level Sensor (1009-1013) 0. $31.56. Clear All. We offer a wide variety of semi truck parts and accessories from brand names that earned the respect of professional drivers and mechanics. Get great deals on Kenworth W900 cooling system switches, sensors & relays at TRUCKiD.Oct 20, 2014 ... When the coolant level drops, the sensor shorts and completes the lamp circuit to ground. So if water got into that connector, it could very ...Advance Auto Parts has 1 different Coolant Level Sensor for your vehicle, ready for shipping or in-store pick up. The best part is, our Kenworth T680 Coolant Level Sensor products start from as little as $71.99. When it comes to your Kenworth T680, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with ...TRP® ELC is a top-tier coolant that delivers these cooling system protection benefits: Total cost of ownership savings; Ease of maintenance – no SCA’s; Improved heat transfer – …Low coolant level warning light stays on have replaced the sensor already, 2009 kenworth t660 isx cummings, yes I am..i - Answered by a verified Technician We use cookies to give you the best possible experience on our website.

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The low coolant comes on and the truck derates to slow the speed. Jump the sensor wires and see if that low coolant issue goes away. If it does, replace the reservoir. Paccar gets weird on the reservoir and that low coolant sensor doesn't read the coolant. It is a pretty common issue with them.Sep 22, 2010. #1. Over recent months I've been getting the coolant level low warning light coming on intermittently. I have checked the radiator on a number of occasions and the level looks fine (i.e. full). At first I thought it was when the engine was increasing in temperature (getting up towards 95C), however over the last couple of weeks it ...T680/T880/W990 Intermittent Low Coolant Indicator Illumination Release Date 8/23/2019 Condition The low coolant indicator may illuminate intermittently even though the coolant level is at or slightly above the MIN line on the surge tank. In some cases, the low coolant indicator may remain illuminated. This condition may be accompanied by a ...The low coolant comes on and the truck derates to slow the speed. Jump the sensor wires and see if that low coolant issue goes away. If it does, replace the reservoir. Paccar gets weird on the reservoir and that low coolant sensor doesn't read the coolant. It is a pretty common issue with them.KenworthRHollingsworth26. Suspect the engine coolant is leaking. purchased Taos 2022 high line on 31dec2021 (Canada) and I had this 'Engine coolant level low warning light is on dashboard. VW service tech filled up the coolant on July2022. But again on 7sep2022, coolant level low light showed up. next day, drove into service centre and …Oct 20, 2014 ... When the coolant level drops, the sensor shorts and completes the lamp circuit to ground. So if water got into that connector, it could very ...KenworthAllmost Compatible with Peterbilt & Kenworth Low Coolant Level Sensor Wire Repair End/Pigtail Connector N9267001,Q21-6007S. dummy. AUGREX Low Coolant Level Sensor Wire Repair End Pigtail Connector Fit for Peterbilt and Kenworth Replace N9267001 Q21-6007S, 18AWG 15in Long. Try again! Details . Added to Cart. Add to Cart .Solution: This is potentially an easy fix. Simply top up your coolant to the “Max” or “Full” level when the engine is cold. Use a 50/50 coolant-and-water mix, as specified in your owner’s manual. For the next week, check your coolant level frequently (with a cold engine), to be sure that there is no ongoing leak that requires regular ... ….

inches for K370 (279.4 mm). It is recommended that the leading edge of the body be mounted a minimum of 4 inches (102 mm) behind the cab. The result is a minimum back–of–cab clearance of 17.3 for K270 and 15 inches for K370 (381 mm) from the front axle to the leading edge of the body (A).Just make sure you check the coolant level daily. Most common problems are either the level sensor is bad, pins on wiring connector to sensor bad/spread, or the float is stuck at the bottom in the coolant tank. I am a Kenworth dealer tech and this is a very common issue. My 2022 t680 will throw a coolant code too.Several reasons are responsible for the low coolant light turned on and off the problem. In this case, the first thing you will need to do is, check the coolant level. If the level is accurate, the following are the culprits. 1. Malfunctioning Coolant Sensor. The primary responsibility of the coolant sensor is to measure the level and signal to ...Jul 4, 2018 · if your low level alarm sounds when the fan is meant to kick in I would think that your low level alarm wiring is shorted or crossed with the fan solenoid wiring. the change of that short being inside the ECM is very very slim. the coolant temp sensor feeds the J1 plug. the other mentioned switches both signal in and command out of the J2 plug high coolant temp a/c clutch eng coolant temp eng oil temp xmsn oil temp cab ground p46 g8 f7 c5 g5 b7 d4 f4 a4 e5 e6 s3 1 j60 1 j64 e 13 s4 s5 j66 1 p44 ab c y01a j50 a b p50 p23 ab b01 b03 j65 1 b02 j51 1 usage: use on 379 chassis family with cummins isx and signature series engines with cm870 controller. diagram, system, cummins isx, model ...Kenworth T170 T270 T370 Coolant Reservoirs, Pipes, Sensors & Caps | Raney's Truck Parts. Buying Guides. Specials. Why Shop. at Raney's? 888-888-7990.Installing low-voltage landscape lighting in your yard isn’t hard and makes a good DIY project. Expert Advice On Improving Your Home Videos Latest View All Guides Latest View All R...Apr 16, 2016 · If low coolant light is on and sensor/wiring has been checked, your problem is the surge tank itself. There is a "floating" metal slug that the sensor reads. That gets stuck. Only fix is to replace tank. Bad Paccar design. I have done many. Coolant level sensor - my head 'splode. 2007 C5500, LMM, 657,000 miles. Our twins have always had troubles with the coolant level sensor and this little gem will shut down the engine. Yesterday #1 was out in BFE and the low coolant light came on then the engine shut down. Usually, they would just wrap the two wires to the sensor together and be ...The primary thing you should do is check the coolant level in your vehicle. You can do this by opening the hood and locating the coolant reservoir. Ensure the coolant is at the correct level and refill if necessary. If the light goes off after refilling the coolant, the issue may have been as simple as a low coolant level. Check the sensor: Kenworth low coolant light, International. Mack. Volvo. Other Rides. All Products. Get your engine running cool and clean again with this reliable aftermarket Kenworth coolant level sensor from Automann at Raney's Truck Parts! Matches OEMs: N9267001, S5950., Light Vehicle Level 2 Organizational Maintenance Manual for Truck Chassis for Direct Support Section Topographic Support System (TSS), NSN 2320-01-113-3616 Automotive Electrical and Electronics ... Kenworth low coolant sensor wiring diagram (2023) , drupal8.pvcc.edu drupal8.pvcc.edu, The coolant system of the Kenworth W900 is a sophisticated network of components that work together to maintain the engine's temperature at an optimal level. Understanding these key components can give you an idea of all the points of failure in your W900’s cooling system: Radiator: The radiator is the heart of the coolant system., When ur days shows low coolant level or your getting that dreaded 111 cel code. Usual suspect is the coolant level sensor. This particular video is showing ..., Make sure you find the right tank (adding antifreeze to the screen wash, brake fluid or power steering reservoir could cause damage). Check your vehicle handbook to find the location of the coolant filler cap. 3. Check the engine coolant level. The coolant should be between the min and max marks on the side of the expansion tank., KW dealer mechanics said the sensors suck, keep the reservoir full, higher than normal and it won't be an issue. That's a low coolant light, which are generally wrong. But check it. If it keeps up, put a jumper in the sensor plug until you can get a new sensor. Had the same problem in my dump, de-rated with what felt about 5 tons over max sucks., Key OFF, Coolant Probe PLUGGED IN, Coolant Module UNPLUGGED 2 Connector 1378 (D to Gnd) Note: This GND circuit is used by multiple components. Refer to the proper wiring schematic book < 5 Ω Yes: Go to Step 3 No: Repair wiring and retest Key ON, Coolant Probe UNPLUGGED, Coolant Module PLUGGED IN 3Connector 6401 (A to Gnd) < 0.25v Yes: Go to Step 4, Get your engine running cool and clean again with this reliable aftermarket Kenworth coolant level sensor from Automann at Raney's Truck Parts! Matches OEMs: N9267001, S5950 ... KW T170 T270 T370 T440 T470 Air Cleaner Light Bars; Kenworth KW T170 T270 T370 Aluminum Fuel Tanks; Kenworth T170 T270 T370 Bug Deflectors; …, Edited by YouCut:https://youcutapp.page.link/BestEditor, Meet the researchers trying to save you from brain-draining fluorescent lights. Reaching behind a low bookshelf slightly taller than a typical 5-year-old—and one topped with a Seat..., MotoRad® Engine Coolant Temperature Sensor (1TS1462) 0. $11.64. Walker Products® Engine Coolant Level Sensor (1009-1013) 0. $31.56. Clear All. We offer a wide variety of semi truck parts and accessories from brand names that earned the respect of professional drivers and mechanics. Get great deals on Kenworth T800 cooling system switches ..., Product Description. OE-Genuine Replacement by Advance Truck Parts for Paccar: S291203 Peterbilt: S291203 Kenworth: S291-203., Hi, I have kenworth t680 2018, when the coolant level goes down and coolant light comes on after few seconds engine light turns on requiring to stop the truck in less than a min. After, I stop the tru …, The level sensor is in the radiator (as noted by several folks) about 2-3" below the filler neck, so for that sensor to close you have to be (1) quite low on coolant in the radiator and/or (2) the sensor has failed. I'd check the system for leaks first. Since your cooling system is sealed, you should have very little to no air in the radiator ..., Low prices on Engine Coolant and Antifreeze for your Kenworth T680 at Advance Auto Parts. Find aftermarket and OEM parts online or at a local store near you. ... Provides protection for 5 years / 150,000 miles in light duty applications and 3 years / 300,000 miles in heavy duty applications; Formulated for long life performance; Low-silicate ..., Prestone HOAT or hybrid-OAT antifreeze is a low silicate-based automobile coolant infused with neutralized organic acids that protect engine parts from corrosion. This extended-lif..., Sep 28, 2023 · Low Coolant Level. One of the most common causes of the coolant warning light is a low coolant level. When the coolant level drops below the recommended level, the sensor triggers the warning light. It is crucial to check the coolant level regularly and add coolant if needed. **Neglecting low coolant levels can lead to engine overheating and ... , Oil Pressure Warning Light. This symbol light usually is turned on when the ECU of the car detects any problem with the oil pressure. It usually indicates that the engine oil level is too low. Solution: Stop the car immediately, switch off the engine, and wait until the engine is cool down, top up the engine oil if the level is low., 2. Turn the ignition switch to the "ON" position and. disconnect the electrical lead at the coolant level. sensor on the radiator. • If the lamp fails to illuminate, check the wiring. between the coolant level sensor connector and. the module for a short circuit to ground. If the circuit. is OK, replace the module., May 16, 2011. 0. Has anyone else with a w900 or t600/t660 or t800 had the low water warning light coming on for no reason. This has been an ongoing thing with my w900 and a friend of mine has been beating his head against the wall with the same problem on a t800. I have been through 3 water level sensors and finally replaced the plug and short ..., Release Date. 8/23/2019 . Condition. The low coolant indicator may illuminate intermittently even though the coolant level is at or slightly above the MIN line on the surge tank. In …, Jul 2, 2015 · 2. Turn the ignition switch to the "ON" position and. disconnect the electrical lead at the coolant level. sensor on the radiator. • If the lamp fails to illuminate, check the wiring. between the coolant level sensor connector and. the module for a short circuit to ground. If the circuit. is OK, replace the module. , Fleetwood Excursion 40X. Start the engine. Low Coolant light comes on, then goes off. I shut off the engine and go back and check the coolant - it’s between cold min and max. Restart the engine, no issue. Leave the RV park and head for the highway. 89 miles to the ferry. As I approach the highway the ‘Low Coolant ‘ light comes on. I’m ..., Inside the tank, there's a ball that, when the coolant gets low, will touch the sensor and give you that code. Unplug the sensor from the tank. The ball should come down and stop the coolant flow. Take a screwdriver or a pen and push the ball up and down a few times. Clean the area of debris., Kenworth T170 T270 T370 Coolant Reservoirs, Pipes, Sensors & Caps | Raney's Truck Parts. Buying Guides. Specials. Why Shop. at Raney's? 888-888-7990., The Kenworth low coolant light indicates that the coolant level in the vehicle’s engine is low. The low coolant light is a warning sign that requires immediate attention to prevent engine damage. When the low coolant light comes on, it is important to check the coolant level and add more if necessary. Coolant helps in regulating ..., Product Description. OE-Genuine Replacement by Advance Truck Parts for Paccar: S291203 Peterbilt: S291203 Kenworth: S291-203., The coolant sensor is around $150.00 @ kenworth. And I got a new coolant tank for $300. I replaced myself and it worked and stopped the issue. The coolant tank comes with a new sensor already installed. These new tanks have some kind of float built inside and they break after a few years. bigstank, Dec 6, 2017. #8., 2014. Engine. 6.7L CTD. I had a low coolant light come on at start up and go off for a few weeks now. I did some searching and it appears it's a common thing with the EGR/Regen process on the 6.7L Cummins motors. Depending on your load/driving you can have this light come on at 20-30K miles., Jul 25, 2019 · Quick guide Old stuck magnet inside resivor allows coolant alarm to stay on. Replace both #beardedmechanic , 4 Kenworth Low Coolant Sensor Wiring Diagram 2020-12-22 Particulate Filter (DPF) system has hindered its commercial success. Stringent regulations of diesel emissions has lead to advancements in this technology, therefore mainstreaming the use of DPFs in light- and heavy-duty diesel filtration applications. This book covers the latest and, TRP® ELC is a top-tier coolant that delivers these cooling system protection benefits: Total cost of ownership savings. Ease of maintenance – no SCA’s. Improved heat transfer – no insulating blanket. Improved water pump seal life – no abrasive solids. Complete protection of all cooling system metals – no pitting, corrosion, or erosion., Upfront, Transparent Price. ( 191,118) Low water sensors are more commonly known, or referred to, as coolant level sensors. The purpose of these sensors is to alert the driver of low coolant level in the engine cooling system. When coolant level in the engine is low, the cooling system cannot adequately remove excess heat from the engine.