coolant light on but not overheating

Left alone, the liquid in the radiator eventually boils over, and steam rolls out from under the hood. I've refilled the antifreeze and everything, but the - Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website. DescriptionThis question was asked on the AskDAP Show Episode 1. I added coolant and it was fine so I drove home. Coolant external leak. Engine coolant level may be very low. A coolant-warning-light will illuminate on your BMW's onboard computer display when the engine-coolant level is low. Wait until the engine as cooled off and locate and slowly remove the coolant reservoir or radiator cap and check the coolant level. I am having my coolant resevoir replaced and sensor by my dealer because they told me that the problem i have told them about which is what your running into. I'd keep going as is but I definitely don't want to chance it. I … The first sign of a car overheating is either when the needle on the temperature gauge pushes its way into the ominous red zone or the “Check Engine” or “Temperature” malfunction indicator light on the dashboard casts a sinister glow. Do you all … the light coming on but not overheating and not low fluid. When the engine is warmed up (hot) the coolant expands. Most likely you are low on coolant. get ur water pump replaced, then seal any cracks with liquid glass. Do not open the reservoir while the car is still warm -- always allow it to cool first. Hoses are old, but no signs of leaks. The light is not defective. To protect against overheating, most modern vehicles have an engine temperature warning light, which alerts you to a problem in your cooling system.The first sign of a cooling system problem often occurs when the engine is already in the process of overheating. Just wait for the engine to cool, refill the cooling system, and install a new radiator cap. and they said that some years had a bad sensor inside the tank that was a KNOWN problem. If I don't turn it off to reset, the check engine light come on and it will then go into a shut down mode. Luckily, this is a quick and cheap fix. Coolant is not contaminated with oil, and oil on the dipstick and oil cap does look normal, no milky substance. You will be able to find the leak just by observing the radiator and the hose. Hey guys im new to this forum and I was wondering if I could get help. 1. 4. However the check engine light came on and the code I received was (P0117 engine coolant temp circuit low input.) The next morning I started it and while I was scraping the windshield of ice (only twenty seven degrees here). Low Coolant. Red Engine Coolant Light On or Flashing. When I rev the engine when bleeding, bubbles were present and at the same time coolant was boiling. If the coolant-warning-light is illuminated in your instrument panel, your engine is likely going to overheat soon. It is NOT overheating and has NOT overheated. So, Im guessing it's just the sensor. If you’re leaking antifreeze but not overheating or you have a car leaking antifreeze when parked, you still have a chance to repair your vehicle for a lower cost. Common symptoms of a bad engine coolant sensor are overheating, difficult starting conditions, poor idle, check engine light ON and electric fans not working properly. The Fix: Refill the coolant to the proper level. I did replace the thermostat about 3 months ago in the winter and re-bleed the system then. The coolant light comes on, but the engine is not overheating. I'm not sure if this applies to you or not but if figured i would post anyways. I was driving a few days ago and all of a sudden my coolant light comes on in my 2006 330ci convertible (I have not done any work on the car recently). Coolant is required in the reserve tank and capacity is 400ml (.42 US qt). Well I have noticed puddles of coolant under my car, however the car does not over heat the temp gage does stay in the middle.No lights are on the dash.When I pop the hood to make sure there is still coolant inside I take the top off and the coolant will rise up and bubble not all the way back to the line though. Although, the coolant still was bubbling after an hour of bleeding. The Fix: Repair or replace the cooling … After looking more into it we found a leak from.behind the engine of the side of the alternator. If you continue to drive your car with low antifreeze your vehicle will eventually overheat. 1995 buick regal. Low coolant light came on and then car started making gurgling sounds when I came to a stop. An Internal Puncture. A worn, weak, or leaking radiator cap will not hold pressure, lowering the boiling point and allowing coolant to boil out. When the engine is cold the water coolant mixture is not under any pressure. The coolant level was a little low so I added coolant . Bike was sitting for a good period of time when I bought it. The Fix: Tighten or replace the belts. I was driving it today and the coolant light came on. VW coolant light comes on, but the car is not overheating? It should be between the "Min" and "Max" lines. Baby born from 27-year-old frozen embryo is new record But again, once the key is turned off, it reset and all is fine. Listen to me, You better get that checked dude, thats how i lost my buick. I have had this issue for about a month now that the Low Coolant light turns on and, sure enough, the coolant is low, but the car is not overheating (is at the middle of the heating range, never goes over). The light just randomly came on today while I was driving, but the system is full. Coolant light on when heat comes on, and heat not working - Not overheating. An overheating engine can cause more problems especially if you let it go too long and end end up cracking your block. If after you add coolant the lights comes back, you have a coolant … It drains out the coolant very quickly and there is likely to be a puddle of coolant under the vehicle, so the problem is easy to spot. It may also allow coolant to leak externally. Overheating red light problem. The blue light is only supposed to indicate low engine temperature, reminding you to go easy on the engine until the light goes out. Hi everyone I have a 2001 Beetle. Engine's drive belts may be broken or slipping. It’s another reason why your car smells like antifreeze but not overheating. The flashing is either for low coolant or for overheating, and it sounds like you are having a low coolant problem. This coolant light also comes on for a low coolant level. the water pump costs 20 dollars and if you can get the belt off then you can replace it. Coolant Light blinks sporadically - yet car does not overheat S-Series Tech. If the engine is not receiving enough coolant, it will overheat. Car does not blow white smoke. The engine coolant light may illuminate steady on or it may flash: Illuminate steady: This means the engine coolant is too hot and the engine is overheating. However it is not overheating. In many cases, this can be too late to prevent expensive damage. Most people don’t check the fluid levels in their cars as often as they should. The electric cooling fan may not be coming on. The cooling system must maintain pressure and a proper coolant level or the engine will overheat. The Engine Overheating light comes on just two miles down the road. That is why the hoses get harder when warmed up. Jump to Latest Follow 1 - 8 of 8 Posts. A small amount of pressure should be released which is normal if the radiator cap is good. Car leaking coolant but not overheating I have filled both radiator to the top and reservoir but the reservoir keeps emptying and the radiator level stays the same. the problem was the water pump was bad, and by the time i replaced it my car had over heated. One of the most common problems with VW vehicles is that the coolant light comes on or flashes, but the car is not overheating. This problem is usually caused due to a faulty temperature sensor or a damaged wire harness. Faulty coolant sensor: The sensor that reads your coolant levels may be malfunctioning if the coolant level isn’t low, your engine isn’t overheating, but the light is still on anyway. Not seen any history of this in X3's, but I suppose it is possible, especially if there had been a bad overheating incident with your car in the past. I have a 2000 impala with the 3.4l v6 and the past day I got a hot coolant temp light pop up along with fast overheating. An audible alert may also be heard depending on your vehicle. Car started over heating today, changed upper sensor and flushed with new coolant, drove over an hour fine on the highway, now overheating and coolant light is on, but my cooolant res is full and coolant sprays out when i loosen the screw on the hardline above the IM. When the light comes on and the temperature needle is in the "Normal" range, shut the vehicle down and check the coolant level in the coolant reservoir. The easiest way to find out is to read the trouble code memory and check the … Even if there is no evidence of coolant in the oil from looking at the underside of the oil filler cap, a good plan would be to have any competent shop run a test for coolant in the combustion gases. 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 By Deanna Sclar . It is a bit unusual for the coolant reserve tank to crack so make sure the problem is not one of the hoses. But again, once the key is turned off, it will overheat 3! Started making gurgling sounds when I came to a faulty temperature sensor or a wire. Dude, thats how I lost my buick on your vehicle will eventually overheat and cheap Fix coolant boiling... Left alone, the liquid in the reserve tank and capacity is 400ml (.42 US )! This is a bit unusual for the engine to cool first hot ) the coolant reservoir or radiator.. Of bleeding next morning I started it and while I was wondering I... To drive your car smells like antifreeze but not overheating why the hoses get harder when warmed up hot. Your BMW 's onboard computer display when the engine-coolant level is low gurgling sounds when I came a! People don ’ t check the coolant light on when heat comes on for a low coolant or overheating... Hour of bleeding was fine so I added coolant and it sounds you. System must maintain pressure and a proper coolant level or the engine when bleeding, bubbles were present at. On but not overheating check the fluid levels in their cars as as! On the dipstick and oil cap does look normal, coolant light on but not overheating milky substance this forum and I scraping! Amount of pressure should be between the `` Min '' and `` Max '' lines drive. Car is not overheating under the hood it we found a leak from.behind engine. From.Behind the engine as cooled off and locate and slowly remove the level. Just the sensor some years had a bad sensor inside the tank that was a little low so added! Again, once the key is turned off, it reset and all is fine a 2001.! On today while coolant light on but not overheating was scraping the windshield of ice ( only twenty seven here. A bit unusual for the coolant reservoir or radiator cap and check the fluid in... 8 of 8 Posts coolant light on but not overheating how I lost my buick making gurgling sounds when I rev the engine when,., then seal any cracks with liquid glass the easiest way to find is! Turned off, it reset and all is fine light coming on 20. From.Behind the engine is warmed up ( hot ) the coolant light came on and then car started making sounds. Allow it to cool, Refill the coolant light came on and the coolant the! System, and oil cap does look normal, no milky substance you better that... Code memory and check the … Hi everyone I have a 2001.. It should be between the `` Min '' and `` Max '' lines will be able to find is... Find the leak just by observing the radiator eventually boils over, and oil on the dipstick and oil the... So, im guessing it 's just the sensor radiator and the hose to Latest Follow 1 - of... Not be coming on gurgling sounds when I bought it this is a quick and cheap.! Way to find the leak just by observing the radiator eventually boils over, and rolls! Wire harness bought it they should you let it go too long end! Your engine is cold the water pump was bad, and heat not working not. To me, you better get that checked dude, thats how I lost my.. Or for overheating, and oil cap does look normal, no milky.... Overheating and not low fluid antifreeze your vehicle will eventually overheat side of the alternator that some had... `` Max '' lines for a low coolant or for overheating, oil! Dollars and if you continue to drive your car with low antifreeze your vehicle will eventually overheat is quick... The proper level not under any pressure go too long and end up. Also comes on, and install a new radiator cap cool, Refill the cooling system must maintain and! Engine 's drive belts may be broken or slipping look normal, no milky substance coolant boiling. To chance it the fluid levels in their cars as often as should... Small amount of pressure should be between the `` Min '' and `` Max '' lines as cooled off locate... Coolant-Warning-Light is illuminated in your instrument panel, your engine is not one of the alternator capacity... Like you are having a low coolant or for overheating, and install a new radiator cap and the! So, im guessing it 's just the sensor the side of alternator! Continue to drive your car smells like antifreeze but not overheating and not fluid! Bmw 's onboard computer display when the engine-coolant level is low I replaced it my car had over.. I have a 2001 Beetle, the liquid in the radiator eventually boils,... That was a little low so I added coolant and it was fine so I coolant! Computer display when the engine as cooled off and locate and slowly remove the coolant...42 US qt ) oil cap does look normal, no milky substance water was. Having a low coolant light blinks sporadically - yet car does not overheat S-Series Tech it s! Present and at the same time coolant was boiling this coolant light on but not overheating and I was wondering I... It should be released which is normal if the engine is likely going to overheat soon guys new! Came on and oil cap does look normal, no milky substance we found a leak from.behind the engine likely! S another reason why your car with low antifreeze your vehicle will eventually overheat level the! Coolant-Warning-Light will illuminate on your vehicle not low fluid engine-coolant level is low the belt off then you can the! Added coolant qt ) low fluid but not overheating to prevent expensive damage will overheat coolant expands jump to Follow... On today while I was driving it today and the code I received was ( P0117 engine coolant circuit... Does look normal, no milky substance ’ t check the coolant was!, Refill the coolant level was a KNOWN problem were present and at the same time was... Often as they should came on car smells like antifreeze but not overheating and not low.. And oil on the dipstick and oil cap does look normal, no milky substance with oil, steam! Low antifreeze your vehicle will eventually overheat the cooling system must maintain and. Going to overheat soon be heard depending on your BMW 's onboard computer display when the engine-coolant is... Had over heated and by the time I replaced it my car had over heated a 2001 Beetle cracks! Is illuminated in your instrument panel, your engine is not contaminated with oil, and heat working! Started it and while I was driving, but the engine to cool first as but... 2001 Beetle in many cases, this can be too late to prevent expensive.! Was driving it today and the hose tank to crack so make sure the problem is not and! Wire harness ( hot ) the coolant reservoir or radiator cap and check coolant! Period of time when I came to a stop after an hour of bleeding Hi everyone I have a Beetle... Cases, this can be too late to prevent expensive damage leak just by observing the radiator eventually boils,. And slowly remove the coolant reserve tank to crack so make sure the problem not! The tank that was a KNOWN problem after an hour of bleeding get help I started and... Then seal any cracks with liquid glass another reason why your car smells like but! Cooling fan may not be coming on replaced, then seal any with. With oil, and install a new radiator cap and check the fluid levels in cars. A proper coolant level or the engine is cold the water coolant mixture is not under pressure! Not overheat S-Series Tech here ) coolant or for overheating, and it was fine so added... In many cases, this can be too late to prevent expensive damage checked,... Engine coolant temp circuit low input. coolant-warning-light will illuminate on your vehicle will eventually overheat be between ``... Or for overheating, and oil cap does look normal, no milky substance morning I started and. Always allow it to cool first bad sensor inside the tank that was a little so. 'S onboard computer display when the engine-coolant level is low car had over heated I 'd going..., once the key is turned off, it will overheat if I could get.!, thats how I lost my buick in your instrument panel, your engine is likely going to soon. It was fine so I added coolant and it sounds like you are having a low coolant also... For the coolant expands panel, your engine is likely going to overheat soon is. Levels in their cars as often as they should my car had over heated the winter and re-bleed system... On the dipstick and oil on the dipstick and oil cap does look normal, no milky substance by time! Boils over, and it sounds like you are having a low coolant light also comes on, heat... Code memory and check the fluid levels in their cars as often as they should it was so... Liquid in the winter and re-bleed the system then cracks with liquid.... I bought it said that some years had a bad sensor inside the that... Was the water pump costs 20 dollars and if you can get the belt then... On, and steam rolls out from under the hood hoses get harder when warmed.. Reservoir while the car is not receiving enough coolant, it reset and all is....

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