These leaks can be a serious problem, as they’re not easily diagnosed and easily fixed. 2 - the coolant light is blue to let you know that the car is cold... it will stay on for a few minutes (as you've noticed) and turn off when the car has reached normal operating temps. I think it then turns red if you're going into overheat territory. Coolant (Antifreeze) can be found in more than 1 color. This BLUE illuminated light turns off when the engine is warmed up sufficiently. Technical Not sure if I've just never noticed it before but mine seems to take about a minute to go off, hot weather here at the minute so that might be affecting it, just wondering what it normally takes for everyone else, thanks Going tomorrow to have it checked again. If the Versa's low-temperature light (the blue one) comes on and *stays* on, it indicates that the thermostat has probably failed. Start reading. Page 7-51: (Red) High Engine Coolant Temperature Warning Light The light flashes when the engine coolant temperature is extremely high, and illuminates when the engine coolant temperature increases further. Whether that's the computer or the AT I can't say, but it does remind me that it's not only the engine that needs warming up. to save money and make it more user friendly. Almost all Japanese manufactured Honda cars I have imported, they seem to still share this on the dashboard. over heating and you should turn it off before you cause more These explosions move the pistons up and down which, in very simple terms, starts to power your engine. Since oil takes about twice as long to reach operating temperature than the coolant, you can't haul ass immediately after the the light is off. If you’ve checked the coolant level and for leaks and you can see no issue with either, it may be a simple case of sensor malfunction. I haven't seen the red temp light come on, even when I was leaking coolant and the scangauge read 220 degrees, before I got it fixed. The engine coolant temp. You may need to book a coolant change. Low Coolant Light Comes On and Off – 4 Common Reasons. Once the pressure has subsided, you can remove the cap fully, check the level of the coolant and top up as required. Blue coolant light stays on or comes back on We have an 01 NB and the last few trips the blue coolant ligt takes quite a while to go off and will come back on after a few more miles down the road. The Blue Coolant light will come on until the car warms up then it will go out, if it comes on red then it means trouble. The engine coolant temp. On engine startup, the warning light will illuminate for a second or two to check the bulb and should then go out. sensor detects the engine coolant temp. First and foremost, you should stop your car as soon as it’s safe to do so. Note: if the coolant light turns red, it means your engine is VAT Number - GB616996004 » Coolant Warning Light (What You Should Do), Car Seat Guide – Everything You Need to Know, Battery Warning Light (Are You Losing Charge? What does contingent mean in real estate? The first step towards addressing the issue starts with inspecting the coolant … The coolant light on the dash will stay blue untill the temp reaches a set temp by ECM, then goes out. Source(s): vw tech Why don't libraries smell like bookstores? The last trip of 15 miles the light never did go off. I have a 2007 Accent and the blue coolant light comes on at start up. example) It will turn off once the coolant temperature reaches T V O R. Top Rank Poster! thus the engine coolant temp. This BLUE illuminated light turns off when the engine is warmed up sufficiently. When this process fails, the engine temperature increases and triggers the coolant warning light. I have a 2013 Outback and when cold staring the blue coolant temperature light comes on for 2 to 3 minutes indicating insufficient warming of the engine. I tracked the other day to see how long it would actually take for the coolant to reach it's normal operating temperature of the mid-high 190sF. Illumination in BLUE indicates insufficient warming up of the engine. Thanks for the rapid answer, mate. thus the engine coolant temp. It does not show the most important thing for engine wear, the oil temperature. Haha. How many candles are on a Hanukkah menorah? The most common reasons for the warning light to displayed are the temperature or fluid level of the coolant. normal operating temperature. I replace thermostats on these all the time for this problem on these cars. It takes another few minutes of driving for that. If the engine coolant temperature in- creases over the specified range, the indicator light/warning light blinks in RED. There may be a floating sensor in your coolant tank that triggers the warning light when the level drops. is input in the form of a control signal into TERMINAL THW of the engine control module. When cold, it takes up less space and could therefore be below the coolant level sensor (if equipped). Nothing to … There’s a fault with the cooling system. Mart. You then get a red warning if it gets too hot. Blue light in dash gets it's signal directly from the ECM. Prestone is yellow, but many other coolant manufacturers use different colours. Off: Engine coolant is warm and warm air is available for heater/defroster. The most common reason for the coolant light to become illuminated is simply that the coolant level is too low. i just bought a brand new honda civic. This is either a faulty reading from the engine coolant temperature sensor or the thermostat is sticking open causing the coolant to continuously flow and never get to proper temperature. The most common reason for the coolant light to become illuminated is simply that the coolant level is too low. In your service history This long service life product is based on a proprietary extended life corrosion inhibitor technology that is free of silicates, borates, nitrites and amines. T V O R 1 Posted January 19, 2008. For a while now the coolant temperature/coolant level light comes on and flashes blue constantly then it will go off for 10-15min and then come on again and flash (it always flashes blue). The idea is that you shouldn't over-stress or rev the engine very hard when the blue light is on. Hi, Does anyone else with T-Sport get this light staying on for a few minutes when starting the Car in the morning ? 22,836 Posts #2 • Jan 19, 2017. The manual's section regarding the coolant temp light says "Illumination in BLUE indicates insufficient warming up of the engine." Please note we record all our calls to ensure that we give you the service you deserve. If you would like to find out about other warning lights, make sure you read Dashboard Warning Lights: What They Mean. Things to look at to make the coolant light go out on a 2004 Saturn Ion Red warning lights are the most urgent and some, such as the engine coolant light are even more urgent. If in doubt flush and start with fresh coolant noting brand/type and date. Take it easy for the first few minutes and don't accelerate too hard until the engine warms up. This coolant temperature low indicator light or coolant temperature high warning light has the following three functions. still not at the normal operating temperature (cold). What causes the coolant warning light to come on? Those times I haven't, I noticed that the transmission requires several hundred more RPM to shift than when it's warm. Secondly, what the light actually shows is whether the coolant is cold or hot. I don't recall the exact temperature, but a quick search of THIS forum shows 122F … Hi I have a 1999 new beetle, she is a left hand drive american import (i live in spain so lhd is needed). If you try and open the coolant reservoir or the radiator cap whilst the engine is still hot, you run the risk of allowing hot, pressurised steam to blow out and burn you. Remember, don’t ignore the coolant warning light. This blue light indicates your Nissan Versa’s coolant is at a low temperature. Blue light in dash gets it's signal directly from the ECM. With not enough coolant the engine will get overheated. Many Japanese vehicles (Honda, Subaru, Nissan, Suzuki, Mitsubishi and many more) require the use of blue coolant inside and outside warranty. “In days gone by, the colour of coolant was determined by the type of chemicals used to prevent corrosion — meaning you could tell a lot about the type of coolant used by its colour. So don’t push it too hard when you first get in to drive. 16k miles. is input in the form of a control signal into TERMINAL THW of the engine control module. There may be a floating sensor in your coolant tank that triggers the warning light when the level drops. Coolant or more aptly antifreeze is that colored liquid that prevents water from freezing in winters and from overheating in summers. As coolant travels around your engine, there are various places where it can leak from, such as hoses, the water pump or the radiator. You can then have a look for any obvious leaks in the coolant reservoir or hoses, although these may be extremely hard to see. The coolant light on the dash will stay blue untill the temp reaches a set temp by ECM, then goes out. No, it should go off when the coolant reaches "normal" operating temperature - after a few miles of driving. Blue Engine Coolant Light On Dash ? OEM Extended Life BLUE Antifreeze/Coolant meets or exceeds performance requirements ASTM D3306 and JIS K2234. automotive manufactures are now using lights instead of gauges Personally I'd much prefer a water temperature gauge Low coolant levels are usually caused by leaks, either in the reservoir or somewhere in the lines. After What the coolant temperature warning light means. How long does your blue coolant light on the dashboard generally take to go off? This means your engine isn’t at operating temperature. You can then have the sensor replaced, which should solve the problem. iI called the dealer ship, since i've only had it for two weeks and this light seems to come on everytime i start my car, and i was told that "the engine has to come up to temperature." Here is what the low coolant light means on your car and the (usual) suspects behind why your low coolant light is on. and has a built-in thermistor with a resistance which varies according to the engine coolant temp. damage. Blue Coolant Temp Light On: Engine coolant is cold and no warm air is available for heater/defroster. Low coolant levels are usually caused by leaks, either in the reservoir or somewhere in the lines. (pp 3-13) The section on starting the vehicle states "The fuel injection system automatically lowers the idle speed as the engine warms up. What are the release dates for The Wonder Pets - 2006 Save the Ladybug? I've never had this on any car I've had. Blue Engine Coolant Light On Dash ? After that, this indicator light/warning light changes to BLUE and maintains illumination in BLUE. The side effect of all these explosions is a huge amount of heat. It keeps the water in the radiator from freezing in cold temperatures or boiling over when the weather is warm. If the coolant warning light becomes illuminated on your dashboard as you’re driving along, it’s a certain sign that your engine is overheating. Ok, when the blue coolant light stays on, this means that the coolant temperature is not reaching normal operating temperature according to the computer. We will break it down for you to better understand why this liquid comes in a multitude of colors. I usually let the cars warm up until the blue led is lit no more. Colors include blue, yellow, green, red, pink, turquoise, orange and purple. If you are driving when this warning light goes on, pull over safely as soon as possible and shut off the engine to let everything cool down. How long will the footprints on the moon last? “These days, there’s no real reason for a coolant manufacturer to use a certain colour, so it’s not easy for you to know what chemicals are in the coolant just by seeing whether it’s blue, green, yellow or orange. It is far more sensible to stop your car and let the engine cool down. If the warning light illuminates blue, it indicates that the coolant temperature is low. Engine coolant has a variable volume that changes with temperature. There is a seperate red light indicating the engine is overheating. The sensor may be sending incorrect information to the engine’s computer, which in turn is triggering the coolant warning light. Your local garage can perform a diagnostic check of your car’s computer which should highlight the problem being a faulty sensor. The coolant temperature warning light comes on when i start the car, in blue, and stays on all the time. As we’ve said, the coolant light is telling you that your engine’s temperature is getting too high and this requires your immediate attention. In order to keep your engine from welding itself together, coolant is pumped around the engine. The coolant light glowing blue when you start your car is a warning that the engine isn’t yet up to its optimal running temperature—so don’t push the engine hard. If you notice any leaks, do not continue your journey. 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