]. I also have the low coolant light come on more often, once again coolant is topped off. It comes on and goes off randomly, plenty of good clean antifreeze in the radiator and in the reservoir and no signs of it getting hot... A few guys told me to replace the sensor, and I did. When starting, it comes on then goes off after several minutes of driving. I got this message with an orange warning icon the other day. Messages 338 Reactions 4 City socal. What is engine coolant? The light only comes on for very short periods (A few seconds.) Its happened a few times. But if the coolant light comes on and you have already checked that the coolant is full, I would suggest to keep checking the tank the next day or the following day and to wait long after the car is turned off. If the "Low Coolant" light in your Chevrolet Monte Carlo goes on, you need to fill your radiator before it will turn off. If the coolant level indicator, turns on and off for no real reason this means that your car’s sensors have failed. Staff Team. it did happen much earlier when i owned the car. Checked wiring plug for sensor, looks good. If that is not the case, then the following reasons could help you know better. The reason was simply because I parked on a snowbank so the truck was tilted and it tripped the low sensor. I had a low coolant light come on at start up and go off for a few weeks now. the first time it happened the dealership said its because the whole coolant system needs to be burped … Nevertheless, the float stick was still floating and there was still some fluid left inside the reservoir. >> You are interested in a used car from Japan, buy now <<. Carli sway bar. 96 Chevrolet Camaro Z28 M6 Medium Quasar Blue Graphite C4 Corvette Zr1 wheels, Nitto NT 555's Performance: Moroso CAI, Hooker Super Comp Shorties, 4.10's, BBK Underdrive, 3" No Name Exhaust that sounds amazing Suspension/Chassis: BMR: Front Upper … Low coolant light on, coolant level fine The level sensor may be at fault giving off a false reading and having the car turn on the warning light. My coolant expander tank had a cracked plastic pipe on top and coolant was coming out. There may be a floating sensor in your coolant tank that triggers the warning light when the level drops. If that sounded tremendously expensive to you, that’s because it definitely is. Blockages in the system that are affecting the proper flow of coolant, Air in the system [This is especially prevalent following a coolant service, during which air pockets can form in the system, causing the coolant level to read artificially higher than it is, and these air bubbles must be “burped.” It can take a fair amount of time and driving the vehicle to work those air pockets through the system and once they are burped out, the coolant level reading will drop and the coolant will have to be topped up to the correct level. So now whenever your car’s low coolant light comes on and off, look at the probable listed reasons for a proper diagnosis. (No Trucks) - Low coolant light - Mercury Sable - We have a 2002 Sable with 85,000 miles that the low coolant light … If you are driving with low engine coolant, your engine lights may come up and when you open the hood to check, you may discover it smoking with accompanying smell indicating the coolant has sprayed everywhere. The low coolant sensor in the overflow bottle isn't a float type, but just hangs down near the bottom and has two contacts on it. I checked the level in the coolant reservoir and it seems a tad bit low. Thread starter G981dan; Start date Sep 24, 2018; G. G981dan New member. it did happen much earlier when i owned the car. However, the third reason for a leaky coolant could be a physical puncture in the radiator, which is easiest to diagnose. Talk to the Mechanic. I've had this problem before, and it was annoying. When coolant was filled initially, or after a drain/fill exchange, if you didn't burp the air out at the t-stats, it would give you false "low coolant" warnings. Why Choose an Independent Auto Shop Over the Dealer? The sensor is in the radiator reservoir at the fill line. I was just curious about "I/C". Is there some way of testing the sensor and/or the rest of the circuit? IF its actually full, then I would like to think the sensor has gone bad, especially if the level is fine! Low Coolant Warning Light in Spring and Houston, TX. BMW has a built-in mechanism to alert its owners if there is anything wrong with the coolant. The light will come on while driving, then go off. Someone might say the oil light has nothing to do with the low coolant light, but after the oil light was reset, the low coolant light was fixed too. Its happened a few times. The bulb check is simply to short across the two terminals on the plug...if the low coolant light illuminates at key on bulb check and after starting stays on, the plug/harness is working correctly. I had a low coolant light come on at start up and go off for a few weeks now. External leaks are cracks/holes/splits/etc. Below, we’ll dive further in the types coolant leaks that could be present, how you might be able to detect some leaks and list a few of the other, less likely causes of a low coolant light that don’t have to do with a coolant leak. You may need to book a coolant change. Additionally, it is always good sense to have your car’s cooling system checked regularly as a preventative measure, and have the coolant changed and/or flushed as per your vehicle manufacturer’s or service provider’s recommended schedule. Change coolant level sensor? It is at the full line. My low coolant light comes on repeatedly; I have to add coolant (2 qts) every 30 - 45 days. 167 Posts . What causes the coolant warning light to come on? While the coolant level sensor doesn’t play a big role in engine performance or drivability, it does serve a very specific purpose in protecting the engine from dropping low in coolant and potentially overheating. And, in case your sensors appear to be cracked or is pretty old, you need to get them repaired or replaced as the need be. Truck has 110,800 miles. This is only the case if the coolant is low and not empty . I did some searching and it appears it's a common thing with the EGR/Regen process on the 6.7L Cummins motors. Some examples of potential internal coolant leak locations are: Depending on where your coolant is leaking from, it could get mixed in with your engine oil or get burned with the air and fuel. The light came on and it was low, so I topped her off. got my low coolant level light again. part of a system that includes a sensor inside your cooling system’s expansion tank. When I got home I checked the level in the resevoir, and it was just a little low, so I topped it off with DexCool to the fill line. 1. During PDI, coolant should be added to fill the upper chamber of the radiator surge tank. Nevertheless, the float stick was still floating and there was still some fluid left inside the reservoir. So I changed the tank but the warning light will not go out even when the … Tsukasa Azuma is an awesome car blogger of Car From Japan. Our low coolant light remains on regardless of coolant level. Browse across maintenance tips to find out which top it off is best for your car. Posted on Mar 06, 2011. Newbie Group: Members Posts: 3 Joined: 25-June 05 Member No. If you have a European car in need of a coolant service or cooling system repair, call the European auto service and repair experts at Autoscope today, or set up an appointment online to bring your car into any one of our three convenient DFW Metroplex locations. Should You DIY The Maintenance On Your BMW? Low coolant is a problem for your car’s cooling system, especially in a performance vehicle like a BMW that requires higher quality conditions to run optimally. Dash Cluster Warning Lights[ *left side*, there are 4 rows]. Low Coolant Light. Talk to the Mechanic. You may need to book a coolant change. 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. He owns a car repair shop at downtown Osaka, and he put all that experience to good use in his sharing posts. If the "Low Coolant" light in your Chevrolet Monte Carlo goes on, you need to fill your radiator before it will turn off. The light went off for about 15 seconds when I cranked the car back up, but then came back on and has stayed on for the past couple of days. Without his running properly, your car will overheat and your engine won’t run. Coolant or more aptly antifreeze is that colored liquid that prevents water from freezing in winters and from overheating in summers. that occur in the parts of the cooling system that are situated on the outside of the engine, such as: Note: Not every puddle under your car is indicative of a coolant leak. These leaks are tougher to detect/diagnose and often the first sign that something is wrong is when the low coolant light comes on to warn you. Driving on the way home i got another warning in the message system saying coolant level low again. Occam’s Razor strikes again. When you park your cars in cold or freezing temperatures, the coolant fluid tends to contract. When you get a crack in the block or the intake gasket you will leak coolant and oil, usually slowly at first. The last thing you want to happen is the check engine light low coolant temperature light to double up on your dashboard before having it fixed. This is the easiest type of leak to catch before it becomes bad enough to drain your coolant down to dangerously low levels that will trigger your low coolant light to come on. Staff member. My '95 C280's light came on aswell, and it looks like it will come on when the coolant level reaches just under the "HALF" way mark on the overflow tank. Also, the level in the coolant reservoir never changed. So for your convenience, we have listed out a few reasons that could be the reason behind such signal variations. I did some searching and it appears it's a … 2015 2500 6.7L 4th Gen I bought new has 141,000 miles on it now low coolant light came on coolant tank is full light stays on had the system flushed and sensor replaced any ideas why it … Like everything else, coolant doesn’t last forever and will have to be changed. Especially if a car is a newer model, most people just assume everything’s OK, or that a light will show up on the dashb So I removed the radiator cap & started up the car, and let it warm up, and the coolant level went waaaay down below the level of the sensor, hence the low coolant light came on. When starting cold, the low coolant light comes on almost every time. 000569, Member of Tokyo Chamber of Commerce Boueki - 201650. Did not add any coolant. These are the following reasons for the low coolant light illuminating in your BMW. Most people don’t check the fluid levels in their cars as often as they should. There's much usefull info in … Occam’s Razor strikes again. Curios to know what you find out. i have a 95 oldsmobile surpreme and my low coolant light keeps coming off and on. When coolant … Aug 13, 2016 at 3:42 PM #1. But when the low coolant sensor turns on and off no matter what the season is, you may have several questions in mind. By the time I got home it turned off again. But when the low coolant sensor turns on and off no matter what the season is, you may have several questions in mind. It's a small black box taped to the GP/WIF/Low coolant lamp harness under the dash and functions as a NOT gate. Low coolant is dangerous to the engine as the coolant is what keeps the engine from overheating during normal operation, so it is imperative to replace the coolant level sensor if it is failing. I had a similiar problem on another car I had..The low coolant light would on occasion come on and stay on (even if the level was correct)..The problem was a faulty coolant level switch..Replaced under warranty..was told it is a common problem at the time..Good luck I checked the coolant reservoir and float stick was slightly below the "low line". The plastic bottle is full. I am so puzzled that Toyota does not have a low coolant warning light or flashing check engine light in the event of a severe loss of coolant. 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