Why am i losing coolant but no leaks. Your either leaking coolant or burning coolent.

Why am i losing coolant but no leaks km87 [OP] Well-Known Member. Maybe topping up the reservoir an inch or so every 100 miles. I checked the level for no particular reason, the other day (I've never gotten a low coolant light). Alright fellas, here's the problem. 8 Sierra. So with time, ambient temp and the heat generated by the bike, I rationalize the loss as evaporation. If you’re constantly topping it off and can’t find issues yourself, it’s . Eventually the valve will get gunked up with wet carbon and start causing EGR related symptoms and DTCs. About 10 days later, it was on again. I don't smell fuel in the coolant reservoir. No visible drips on the ground, but I was losing 1-2 pints a week. When I lose coolant, the level in the overflow tank stays Common causes of coolant smells include leaks in the cooling system, heater core issues, radiator problems, and gasket failure. Other leaks are in an area where the coolant slowly leaks out and quickly flashes off. . 2 qts per 400 miles would not even be noticeable in the dry West, other than a coolant smell or maybe slight fogging on a very cold, wet morning. Get expert tips on DIY fixes for minor leaks and when to seek professional help for safety on the road. Its just soo small a leak it turns to gas as soon as it escapes. Same thing with my 08 3. Sold my 02 a few weeks ago and bought a 2011 with 54k on it. ) small airboubles in tubes and blocks travel to the res and so the level there is sinking. I smell coolant sometimes but I am not sure if it is residual smell from these other two leaks that Have had. 1)No sign of coolant loss inside of car by heater core 2)Pressure tested coolant system at 16psi and it held for 1 hour So I am going to buy a specialty tool tomorrow made by Irwin called Bolt out. Very small volumes of coolant can leak and fans would likely dry this before it I have a 2003 4Runner V6 with 108K miles on it and I am losing coolant. With a blown head gasket, the coolant could be leaking into the combustion chamber, mixing with the car’s oil. Nov 23, 2023. 8T and once every couple weeks the temperature gauge overheats. So a total of 3 1/2 gallons in 6 months, 5k miles. Tags coolant externally leaking losing. March 19, 2022. It only seems to run when the oil warning is displayed. Now, this article is supposed to be about coolant loss without leaks. I'm losing coolant but don't see any leaks. Using tools like a cooling system pressure tester and an infrared thermometer can also help identify hidden leaks or overheating Hate to scare ya but my dd15 was doing that for about a month, no visible leaks but losing coolant about a gallon every few days. When a car is losing coolant but no leak is visible, it can be frustrating and confusing. Many times coolant loss without seeing signs of an external leak means the pump has gone bad and is dumping the coolant into the oil pan. This suggests that losing two Why Am I Losing Coolant But No Leaks? If the coolant levels are dropping, but you can’t find a leak, it’s probable that an internal leak is occurring. My Cummins is losing coolant. This section will cover the three main ways to check for coolant loss causes: checking for internal leaks, checking for external leaks, and checking for other causes. Hey Guys, its been a long time. No coolant in oil or trans fluid. the next challenge is to find the leak . I had a really small leak coming from a coolant line. An exhaust leak wouldn't cause a loss in coolant. I noticed recently that my coolant resevior was empty, open the radiator cap and it was low as well. I tried using the choke properly, worked for one run but then the leaks began again, topped the engine fully with oil, it worked once and that was when the "hi" oil Hey Folks, been awhile since Ive been active here, but I am cross eyed from reading, so i decided to post and and hope. 7 with losing coolant 60 000km. Do a leakdown test on the cylinders and if they are good pull the throttle body off and replace the IACV gasket even if it hasn't blown. No leaks anywhere. Had to pull over on an emergency because it was hot and had no coolant in it. Like, no puddle or anything. Asked by Visitor in Cape Coral, FL on . 1992 Explorer XLT (Sold), 1994 Explorer EB (Sold) 2003 Mountaineer Premier V8 (Totaled), 2002 Explorer XLT V8 (Sold) 2010 Mountaineer Premier V8 2015 Edge SEL 1989 Coolant can evaporate due to exposure to high temperatures. There isn't a 99-01 maxima that comes in with high mileage that I don't try to sell that gasket to as a Why am I losing coolant with no leaks, I just replaced my head gasket? Car is overheating every few days. The car runs 100%, and its paid for 🙂 My problem is I seem to be losing coolant, at the rate of about the entire overflow in 2 weeks (I only drive on avg 15-20 miles a day). 3. I have had a friend of mine who has a garage pressure test the system and there are no leaks present. 5. No matter the reason why you’re losing coolant, it’s imperative that the root cause be found and addressed. Understanding Coolant Loss. I park in the same parking spot at work and at home, no leaks on the ground. Tomorrow I am going to Auto Zone and getting a pressure tester so I can see if that helps. I had a constant coolant leak years ago on a Ford and I could never find a drop anywhere when Why am I losing coolant? Basically I‘m losing around 250 ml/ 1 cup of coolant every 9000 km/ 5000 miles. Since mid summer I have been monitoring a drop in my coolant level. 4L 4 cyl. Note: When I first got my 6. I only spotted it after a topping up and going for a short run - enough to leak, but not evaporate. Mine I am sure is a small leak as I can get a faint whiff of hot coolant smell while idling, say at a drive-thru. Comment; Flag; More. 3. This type of leak puts coolant into the oil and the two emulsify into some Level of coolant in reservoir tank is still the same, dont moves. Turns out they can see a leak coming from beneath the intake manifold and on they also suspect a leak from the radiator drain plug on the top drivers side because it looks a bit rusty. HG leak is always a There are two ways for coolant to escape the system, by leaking to the outside where you see puddles on the ground and wet stuff in the engine bay, or it can leak internally -- leak into the engine. Now it is empty again. Today the service guy told me they were going to remove the intake manifold and check it. The oil pressure was getting lower and lower as the coolant mixed more and more with the oil. The water pumps tend to leak, either on the gaskets mating it to block, or the weep hole underneath the pump itself. I add the coolant when it is cold, and it is fine then, as long as I drive it on flat terrain. I am glad to know I am not the only one. I have been all around the motor with a light, nothing. People who have mixed coolant types, particularly the green stuff, have found that the mixture coagulates over time. Hey guys just so you know I have a 2012 f350 6. I already posted this question and I was advised to do a pressure test. No noises like water pump problems. Pressure test seems to hold pressure. A4 (B6 Platform) Discussion - Losing coolant/no leak found from pressure test/overheat once in a while - I am losing coolant in my 2003 A4 1. Coolant loss with no visible leaks or visible leaks requires you to check your car once in a while to see how much of the coolant to lose. My natural first reaction was 'cylinder head gasket' but the only time I ever had this happen in a car the oil quickly got full of crap and frothed up, but at the moment in the Insignia the oil appears to be Looks like those heads tend to leak near a crack on the cylinder heads, so remove the valve covers and see if you can spot any coolant leaks. No leaking under the truck, pressure test came back good, no oozing or leaking around the heads, no smoke and water pump is good. When the heater cord goes bad, it can cause coolant leak which lead to cold air while having the heat on. Joined: Aug 10, 2019 Member: Not long after I had a leak in the water pump area. ZERO visable leak. No smell of coolant, no smoke. Ideas please. This detailed guide will cover the 6 most common reasons for a BMW coolant leak without overheating and how to diagnose and repair the issue yourself. However, this type of leak tends to produce more potent antifreeze odors inside the cabin This is exactly what happened to my 2005 3. Pump is dry and the cap is good. However, there is a common E39 528 losing coolant. Why am I losing coolant but no leaks? When you are losing coolant but no leak is visible, several parts could be the guilty party. The coolant is leaking from around the front cover area and vaporizing. In this case, the coolant that leaks because of the cracked cylinder head will not be visible. if its loosing pressure . Have you looked under your car for any coolant puddles/drips All they stated in the report was that there were no signs of a coolant leak. I drove home from dealership (5 miles) and when I went to start it the next day the coolant light came on. I do have a smell of what i think is coolant in the engine compartment. I looked in the engine for anything wet and looked under the car. We have a 2004 EX losing coolant after a week or so with no visible signs of a leak and no white smoke from the exhaust. However, since we're talking about the fluids, this column should be leaking somewhere, and many drivers think the coolant leak will eventually be visible. 2008 JKU-X auto D30/44 4:56 Yukon Zip lockers BFG M/T 32" on Rubi wheels I keep losing coolant slowly over about 300 miles my low coolant DIC lights up. No leak in cabin after heater is on, works fine. If the underside of the oil cap has some light brown, almost grayish film, this is a good indication that you have a leaking manifold gasket. Over time, heat can lead to gradual loss. I suspect a leak, likely very small, smaller than a drop would produce. After letting the dye circulate for an hour or so no leaks noted. Not enough to overheat (unless I ignored the Low Coolant light), but enough that I was having to add some weekly. But I am at a loss to know why it is happening. It doesnt smoke either. Diagnostic Tools: Utilize tools like a pressure tester, coolant analysis kit, and infrared thermometer to accurately diagnose and identify potential coolant leaks or contamination. I got a 2018 f-350 6. There's no coolant on the ground. ) the loop is loosing coolant constantly on a molecular base, thats normal b. Finally thermostat, and upper hose was replaced and I thought that cured it. But, things are not as complicated as they appear to be. Solution: Examine your hoses to determine if any coolant is leaking. View Profile View Forum Posts If you look at the system, the overflow / expansion tank has a hose out the top which is open to the atmosphere. This can be due to internal leaks, where the coolant might be getting into the engine oil or being burned Losing coolant, but no leak? Hi All, 89 3. Hello, I have a 2008 Rav4 2. Discover the reasons behind your disappearing brake fluid in this informative article. The dye is a really good way to find leaks. Here are some possible reasons for coolant loss in a Chevy Trax: 1. Coolant that leaks into the combustion chamber will be burned off. Prices can range from around £50 to £300, depending on the make, model, age, and type of vehicle. Coolant leaks into the oil in about only two or three percent of head gasket failures. If the car has recently overheated then this could have caused the head gasket to fail. 2009 - 2014 Ford F150 - coolant loss but no visible leaks - I have a 2012 EB with 67k miles, I am loosing coolant but don't see an obvious leak anywhere. The loss of coolant often trips the low coolant warning if the level isn't maintained. The car sat at a mechanic for a few months after replacing the ignition coil for cylinder 3 and the radiator. Is this a common problem with Chevy models? The coolant levels drop significantly over time, and while I’ve checked the hoses and radiator, everything looks intact. nothing is wet. Have you experienced these issues? Oil loss without visible leaks is often due to the engine burning oil, which can happen if faulty parts allow oil to enter the combustion chamber. coolant reservoir is leaking (but it passed pressure test) 2. It could be a blown head gasket, a fractured cylinder head, damaged cylinder bores, or a manifold leak. 6 pentastar that’s losing coolant! Did all the normal checks and can’t find it. It is also possible that you did not completely fill the coolant system—for example, you may have forgotten to turn on the heat (so that coolant will go into the heater core sub-circuit). Cooling system is under pressure , even thou the car is not running and the engine is cold both inlet and outlet hose is hard. Check hoses for wear, examine the radiator for blockages, and monitor for white smoke or dashboard warning lights. I have an almost new water pump and it shows no leaks. I had to put in about 14 oz of coolant (half concentrate and half distilled water) to bring the bobber from below minimum to maximum level. Why is My Car Losing Coolant? Is your car losing coolant but you don't know where its coming from or there is no visible coolant leaking out? Not sure wher Of course a leak is a possibility and should be checked out as other respondents suggest. If the head gasket is going you will see steam coming from a plug hole. Loss of coolant has also been linked to the water (at work currently), but I am just tossing this out there to any of you guys for advice or suggestions on where to look for a leak or if it's burning coolant or anything like that. Most likely loss is the heater core. I cannot imagine i could loose that much coolant with no highly visible coolant finger prints in less than 24 hours and 75 miles. I'm losing more than 1 gallon per day, my "low-coolant light" comes on about every two hours, I have to stop and put water/coolant in, its very inconvenient. I had to top off the coolant every week or so but there wasn’t ever a I seem to be losing coolant, I keep topping-off every couple of weeks, but can't find any apparent leak. Only seems to leak on longer journeys. 7 that I just bought about a month ago. They flushed the old brownish coolant out of the car and refill it with new reddish coolant. I put a gallon of the Motorcraft Orange coolant in 2 weeks ago to fill the reservoir back to the line. Have you checked the oil and is it normal? No leaks. Honestly, I cannot see any evidence of leaking coolant (I am leaking a bit of oil; I havent done the VCG Why am I losing coolant with no visible leaks? 2008 Volvo V50. Never so much as a drop on the ground. Based on the amount of coolant you are losing, it sounds like you have a coolant leak of some kind. Waiting on a reply. look for obvious leaks on hoses and the Losing coolant and not leaking externally. It could also be a hydraulic lock. Leak on highway under pressure and no leak at idle. I suspect the worse which is leaking head gasket and the coolant is being burned off when i start the car?? When i first start it in the morning or when cold it seems a bit rough for a few minutes. They'll see it underneath the vehicle. However, there are a few steps you can take to identify the cause of the problem. Many times these can result from fan screws piercing radiator tubes (for those which have collisions to do so). 8. Just my thoughts, not saying you don't have an issue but if no obvious leaks or head gasket issues, I would not lose sleep over it. If anyone has a deducing suggestion or a potential weakness where the coolant leak might be in my C5 I would greatly appreciate any advice I can get. Turned out all it was was air in the system from an incompetent job. A poorly maintained antifreeze system, defective components, or a rapid change in the driving style may contribute to this coolant disappearing. Took to dealer. They ended up pouring in a dye and I’m going to be bringing it back to the shop this week to confirm everything. Changed the water pump and all hoses last year and recently replaced the overflow reservoir on the advice from this forum to no avail. I would put coolant and drive my car for a few days. Before we can figure out where your coolant is going, we need to figure out what the coolant is doing in the first place. harrisjose September 26, 2023, 5:14am 42. Symptoms to Watch: Key indicators of coolant loss include engine overheating, low coolant levels, and unusual engine noises which may signify internal leaks. It will also cause corrosion. Sent from my iPad using Bimmerfest Check the simplest thing first like the cap and the coolant tank. I’ve been noticing that my Chevrolet seems to be losing coolant, but I can’t find any visible leaks anywhere. I check my radiator coolant level ( I open the radiator cap and check to see if it is full ) about every week. I know its not a blown head gasket and have found no leaks. Car losing coolant but no leak My car has recently had a new radiator to fix the air conditioning (stone went through previous one). Here are the primary causes: Hidden Leaks So I’ve got a slow coolant leak. Noted symptoms to check: 1) My coolant reservoir was Why ask for advice and then refute the advice, if you have replaced everything like you said and filled correctly and bled correctly and the coolant is still disappearing and there is no coolant on the ground then it can only be going into the engine thus most likely a head gasket issue, subies are shite and known for multiple common failures Hi All, new to the board here. Looking for guidance on differentiating these possible causes The coolant level would be fine and then drop. This would indicate a passing in the head gasket seal allowing coolant to enter the oil. Same problem; everything seems fine but coolant keeps dropping in the radiator and coolant eventually overflowing out of the reservoir which I drained out and Head gaskets for sure. Stone hit the radiator? I has similar years ago on a 2. I have 251,000 miles but the engine and mechanicals have been well maintained and in good shape. Common Reasons Your Audi is Losing Coolant 1. Toyota fixed the gasket and refilled the coolant res. Feel under water pump for wetness. This prevents damage to the pistons, cylin Engine issues. I am losing about a quart of coolant from my 2009 Chevy Tahoe every few weeks. Why is my Chevy Trax losing coolant? Losing coolant in a Chevy Trax can be caused by several factors. Joined: May 11, 2005 110,557 50,256 0 Location: boston Vehicle: 2012 Prius Plug-in Model: Plug-in Base. Coolant loss A significant drop in coolant levels can be a sign of a blown head gasket. Coolant loss can stem from several issues, even when no leaks are visible. It might not look crack or leaking when parked up but when running it might be leaking or escaping from cap/tank and is fairly cheap and easy to replace. One of the "freeze/expansion" plugs on the block was a bit corroded and had a small leak. If the system holds pressure with no issue you have a deeper engine problem, head gasket issues burning coolent. It still seems to run fine but I keep having to put coolant/water in the radiator. I am giving you a scenario regarding my vehicle: 1. I have no visible leakage, and there are no spots on the ground showing a leak. No leaks until I touched the band clamp and then I would get a small leak every 2 weeks. Also check if possible wear a latex rubber glove and feel around the water pump for signs of coolant or what would look like heavy ammount of bird droppings. If you are losing coolant say over a day or two, and with no visible leaks, I'd do the pressure test with the spark plugs removed on a hot engine. Of course, 2 trips to different Kia dealerships couldn't ascertain the problem so I did some online detective work and discovered that the heat exchange was leaking into the catalytic converter. No leaky hoses, no drips when stopped, no liquid is seen. Shop can only find air in the system. At first i thought it could be an airlock but since then I have have topped up more than the system can hold. Coolant may escape as liquid If you’re losing coolant but can’t see any leak, it’s likely the leak is internal and the coolant vaporized inside the engine to form a mist. I feel that if there is loss of coolant, it might be due to either IMG leak at top rear engine (which I have not yet seen) or due to blown head gasket. I had the same thing happen recently, for 6 months. Discover key symptoms to watch for, perform effective diagnostics, and learn essential maintenance tips. I even went so far as to pull the spark plugs and they all Its not over heating, no where near it. Now I’m wondering if my coolant is disappearing too! How do I know when to call a mechanic? 7 Likes. It is reported that the Volvo coolant is the same as the BMW coolant. More commonly the coolant will get sucked into the cylinder where it is burned, then appears at the tail pipe as white smoke. 7L engine. I saw this on two motorcycles and while coolant temperature is not conductive of a similar leak given car age and radiator manufacturer (Showa Aluminum) it was a possibility. Its a. It’s important to diagnose the issue accurately to determine the exact cause. I have a 2004 Dodge Durango V8 4. He marked degas bottle. Can coolant level drop without a leak? It might sound weird that the coolant level is robbing without a visible leak. Everything is tight (including the radiator and the hoses don't need screws anyway) and the coolant is full to the brim. I recently had the transmission rebuilt and they also replaced the thermostat. My thoughts: 1. The dealer (West Suburban found out that I had a crack in the neck of my radiator to the coolant hose. So far I have pressure tested the cooling system at 20 psi and found no leaks. Taking your car for service after every 30,000 miles covered will help you maintain a good cooling system. I replaced the water pump last winter because it was leaking, Had the turbo coolant hose leak and replaced this fall. Coolant plays a crucial role in regulating engine temperature, and a coolant leak can cause the engine to overheat, which can lead to expensive engine damage or even complete engine failure. A week ago it was pouring coolant out at a good pace, falling from the trans heater but not actually leaking from there, it’s coming from higher up but I Having the same issue! low coolant light comes on every couple months. tcom. Q5/SQ5 MKI (8R) Discussion - Losing coolant but can't find a leak - Have a 2014 SQ5 I just bought a little over a month ago, since I've bought it I've noticed I've been losing coolant and can't see from where. Greetings allThis posting is frankly a last resort before I go nuts. 8, 5. One item to check is the oil cap. I am currently driving a 98 Buick with the 3. Any ideas? It’s probably a really really small leak and it’s not enough to drip, so it’s just drying out on the surface it lands on. I too cannot find any hint of just where it is leaking, but I know it is. But it is still using water, no sign of it in the oil. (Coolant was between the marks with the engine hot) the coolant cold sits about an inch and a half lower than the minimum. Cuz I was having issues with coolant leak, but no visible leak or any form of a puddle. Regularly check your coolant level and top it off as needed to prevent overheating. I did the head gasket almost a year ago thinking that was a problem. Worn out piston rings, cylinder walls, or valve seals are common causes of oil burning, leading to reduced oil levels. 3, 6. So I filled it up. Couldnt see a visible leak but could smell it slightly, so I replaced the radiator cap. Addressing the source of the smell promptly can help avoid more serious complications and costly repairs. By understanding coolant loss, you can prevent costly repairs and ensure When I have a small coolant leak or coolant loss on a car like this Honda Civic, the first things I always check is. No more leak in that area Engine coolant leaks can be quite simple fixes – but can also be very expensive. I changed the oil right when I bought the truck, and it's black like it should be. good deal If the cylinder head cracks, coolant may "leak" into the combustion chamber. Think my problem is the head is slightly warped. I hope this works as this could really stop the head removal. My 2022 Outback has been constantly losing coolant since I bought it, needing to have the empty reservoir refilled with coolant every 5 to 6 months. No leaks. I am losing coolant from the reservoir in about a week’s time after filling it. Head gasket has been checked. 5l LCV I have been loosing coolant and I can't find the leak. Meanwhile, all sorts of things were said about it losing / puking coolant, etc. I have now noticed that I am losing coolant but have no leaks. Cracked engine block or cylinder head: These severe 5 Likely Reasons for Coolant Loss Without A Visible Leaks. hoses are clear no blockage. It finally shut down on me as the coolant was getting into the engine ans my cylinders were scored. There is no water leaking on to the drive, and no obvious leaking signs under the bonnet. Let it cool down and added coolant and made it home. 8L engines have come to us because they continue to lose coolant. Why is my coolant level dropping but no leak? If the coolant level is dropping and there is no external leak evident, then the coolant is probably leaking internally, into the engine. The car was just repaired days ago for leaking coolant. The two are being conflagrated when they are not the same. You can check for bubbling in the radiator or coolant reservoir. Slow drip, every few seconds. Your either leaking coolant or burning coolent. A damaged head gasket can allow coolant to enter the combustion chamber. Why am I losing coolant but the engine is not overheating? It might be a broken hose or a radiator hole. Clicking this will make more experts see the question and we will remind you when it gets answered. 8 V6 and 120,000 on the clock. Had to get a rebuild Having severe coolant leak issues. I am loosing coolant but there is no leak. Both leaks can be hard to spot. Engine runs like day one. Most leaks were from the heater core and the antifreeze was pooling somewhere and hard to find. No contamination in the lube oil system . If it has, it could be leaking coolant into the combustion chambers. A small leak won't really cause any driveability symptoms right away, just a mysterious coolant loss, most people never notice this coolant loss. I have checked for external leaks and found none, oil level is not over full, trans oil looks red and is not over full, have pressure test with it running and found the cooling system holds a I have a 2002 mini cooper. An inspection mirror and flashlight helps to find the drip. Someone suggested it was the ERG "cooler"any help would be appreciated! Thanks in advance. There are no fluids leaking that can be seen on the pavement Hey everyone, I have a 2008 Toyota Camry. The car is running fine and the a/c cools and the I am at a loss here 2001 SLK320 My coolant level is constantly down at an almost alarming rate, I see NO leaks(not a drop!) anywhere, no funky smell inside the cabin or coming out the exhaust pipe, no white smoke coming out the exhaust either. A pinhole-sized leak, a worn-out radiator cap, or a leaking head gasket are all potential sources of coolant loss. I checked the coolant reservoir tank today and it look almost empty below the low level line. Coolant leak: A coolant leak is a common cause of coolant loss in vehicles. About 3 months ago, I had a coolant flush service on it at a local mechanic shop. There is no visible leak that I can see and no puddle underneath at home or at the office. Uncover common culprits like damaged brake lines and faulty cylinders, while learning how to spot symptoms such as a spongy pedal or warning lights. Could be water pump from description. 0) was very hard to turn so that was replaced. No one seems to have had my same issue, but sounds very similar - slow coolant leak over time and no sign of leaks anywhere. 1. It stays just as full as always even if the water in the rad goes down On other side notes that my not be related: Heater does not blow hot and there is water in the pass floorboard (guessing from A/C) What am I missing? Persistent coolant loss may be the only outward symptom Often General Motors vehicles, with the 5. Pressure testing the coolant system may reveal a leak or may not, these tahoes and trucks with the 4. Took it back to the dealership since I have a warranty with it, they diagnosed that it was the oil cooler and Truck was running HOT coming home one day, and I saw I was low on coolant. it´s normal Here are the steps I've taken to attempt to locate the leak. courtney27 September 24, 2023, 5:17am 41. I So I have a 16 Durango 3. Opening the hood, I’ll find that coolant is coming out of the bottom of my reservoir through what I think is an overflow valve. 2nd day I smelled coolant. It could also be that the leak is too small for you to see; it could be due to a tiny hole in the radiator, a slightly cracked coolant hose, a water pump issue, etc. Soot may mean improper combustion which may point to coolant leaking inside the cylinders. with 90,000 miles that is losing a significant amount of coolant, about 1/3 gallon every tank of gas (the entire reservoir tank is empty every 250-300 miles). Ive had this happened in the past and it was always the water pump. With cold engine, pass a finger on the exhaust end tip see if it's dark from soot, wipe and check again after a few days. It's either burning off and/or leaking during driving. Unfortunately, when there is a loss of coolant with no external leaks, it generally leads to an internal gasket failure. A leaky radiator is one of the most common reasons for coolant loss. There are a few obvious and not-so-obvious places where your engine coolant can pull a disappearing act, leaking away without the blatantly obvious sins Coolant Loss Causes: Understanding the reasons for coolant loss without visible leaks, including evaporative loss, internal leaks, and gasket failures, is crucial for vehicle maintenance. not easy if its just a drip. Jump to Latest I am loosing water but at a much slower rate, like once every two months I have to refill the bottle. I'll check later, but it seems to be just the expansion tank worth that I am losing. No visible leaks, no internal leaks. A sudden drop in the levels should ring an alarm. so I am at a loss with this one. I’ve seen it before head gasket leaks a tiny bit into combustion chamber when running (therefore never needing to push coolant to the expansion tank) but then when it cools the small breach in the HG closes back up and the cooling system sucks some coolant in from the expansion tank. Moreover, the coolant level in the overflow tank has not changed. bisco likes this. This is a serious condition that should be dealt with immediately. If the radiator needs to be removed and have more extensive work carried out to fix the issue, then the bill could be more than £1,000. This is one of the less-common ways a cylinder head gasket can leak. I’ve noticed it keeps getting low on coolant and I have to add a bit to keep it at full although there are no leaks at all! The coolant container storage thing ( beside the radiator cap ) indicates coolant level slightly above low. Yet I keep slowly losing coolant to where the low coolant warning beeps on the dash, again after about a week after refilling the tank. Losing Coolant But No Leak: Where Is My Coolant Going? It may sound ghostly if you think of coolant loss, no visible leak. Topped off the radiator, filled the resevior, and with a week the resevoir was empty and the radiator low. (Coolant could only go out the exhaust if it first leaked into the cylinder and passed out though the exhaust valves) Conversely, a head gasket leak can cause coolant leakage 1) out of the engine, 2) into the cylinders or 3) into the oil passages. I pull over Hey maybe try the heater core. Normally the owner has tried in vain to find the leak and sometimes, multiple auto repair shops have been unable to find a source. The smoking gun? At the moment though, and something to think about - I have a car that is losing coolant too. Someone mentioned the turbo feed line, which while it probably needs replaced, that will drain the coolant system in about 2 minutes if it blows. recently i have been losing coolant from the expansion tank and i have to top it up at least once a day fully. 0, the coolant bottle was quite low, and it took several top ups to the low mark to get it "up" to spec. The problem is that the rad gets hot and evaporates any water from a minor leak. Is your car losing coolant without any visible leaks? Our article delves into this perplexing issue, exploring potential causes like internal engine problems and radiator failures. ) coolant level in res is depending on themperature of the coolant c. I turned off the car and popped the hood and can see coolant in the reservoir tank. My 2012 Durango Crew is losing coolant yet there are no signs of coolant under the hood or dripping under the engine. Exhaust If the head gasket on the vehicle has weakened or burned, it can crack or blow open a water jacket that sits in proximity to the top of the combustion chamber. I'm having to add coolant weekly of course depending on how many miles I've driven. Sometimes it can affect the fuel system indirectly. 8L GC. Put some white duct tape on the coolant reservoir and put a line and the mileage after every trip or two. I had a very slow leak under the supercharger at an o-ring or some fitting - cant remember what the Audi Tech said. I’ve slowlyyyyyy been losing coolant and really slow at that matter. And I cannot find any leaks. head gasket leaking? (no odor of combustion gasses in the tank, tank is clean, no bubbling in coolant, car runs fine, no The low coolant light comes on and it takes about 3/4 gallon. There was no leak, no EGR failure, no puking. My 2007 Town and Country's coolant magically disappears after two or three days of driving and there's not a single leak. On my 2013 Malibu 2. Certainly no leak that could result in a loss of all the coolant so quickly. I can drive 1000 miles and the level drops Why Is My Coolant Running Out Quickly but No Leak? Sometimes, the coolant might seem to disappear without any visible leaks. You can also check for leaks on the ground or garage floor. 3L and 4. No sign of coolant in oil, exhaust smell in coolant tank or white smoke from exhaust. Hi Jim, With the engine off, Open your oil filler cap and look at the under-side of the cap for signs of sludge or white, . is there suppose to be clamps on these two hoses? 2020 at 10:47 AM #1 #1. No more coolant loss. I am guessing the coolant i put in yesterday to fill the reservoir (~1 qt) was consumed by the radiator which had been running low. Get your car checked by a You need to pressure test the cooling system for as long as it takes to be sure it's not leaking externally. The rad was replaced and all is well! [Modified by Weakness, 11:40 AM 11-9-2002] It’s expanding but just not into the expansion tank. Radiator fan works fine. Can’t see any signs of leakage no puddles or wet patches nor any pink corroded areas. No visable leaks. Losing coolant, but no visible leaks. The coolant low indicator never came on Why is my car leaking coolant only when running? Coolant is more likely to leak from a car when the engine is running because it is hot and under pressure. bisco cookie crumbler. I don't think you are overheating and losing coolant, I think you are losing coolant and then overheating. He pressure tested and no leaks. Identifying a leak in the lines that carry hot coolant to the heater core can be challenging, as it may not be readily visible. i had the same issue w my 04 and it involves a crack that develops in a oil drain back hole that leaks intermittently during warm alright after I swapped the car I put coolant in the radiator and fileld the overflow halfway between the min/max lines took the cap off the radiator, started the car, let the fan cycle a couple times, topped off the fluids, reinstalled the cap - I still noticed the level going down from like max to low in a few days. The problem is I have no leaks. Here, we’ll explore the common reasons why your Audi might be losing coolant and when you should seek the help of a professional, particularly from a certified German mechanic at Oceanside Motorsports. I kept losing coolant. I feel like in the past 4 days I have had to put entirely too much coolant into it, and I am not seeing a leak anywhere under the car. The strange thing is that my mechanic has flushed the coolant system, pressurized it, and says that there is no leak that they can find. Radiator crimps are good, water pump is good. Again no visual leak. The code shows cylinder 3 misfire and we can barely press the gas without losing compression at this point. No CO2 in the coolant. But, when I go up a mountain, I lose about a quart of coolant and the car overheats a little. Does coolant pass through the intake I have never seen any that do and they are going to see if it is There is no coolant puddle/ drip from engine bay such as : heater hoses( new), heater control shutoff valve( new) , radiator( new) . As a general rule, the causes of a coolant leak while an engine is running include a burst or cracked coolant hose, a leaking radiator, a leaking coolant reservoir cap, a bad water pump and I see a lot of the coolant settling on the lip right under where the water pump is located. Keep in mind when you're driving your cooling system is under pressure for hours at a time. Ideas? 2002 Grand Am, mysterious coolant leak near passenger side of radiator. Topped it off and the light came on once more yesterday. Today I have added the dexcool friendly uv dye in hopes of the leak showing up. the problem is w your heads as GM had a cracking issue w certain # heads w the 5. Its also not taking the water from the reservoir. If all other suggestions and above not resolve, perhaps exhaust gas in coolant test at radiator shop would be good. The coolant is bright green when I top it off. 25% every four to six months. Customer has come by 3 times to have coolant top up about 6 litres each time, good customer who takes care of his trucks. The car is not smoking, doesn't have any milky mixture in the engine oil. when open cap on engine no signs for head gasket problem. No- started losing coolant again, mechanic found out my electric fan(4. I was still slowly losing coolant, until I found a small leak that became pronounced. there is a leak. 1995 525i 5 speed I was sitting in my car during lunch with the car running for about 10 minutes and the coolant low light came on in the dash. I have the warranty and took it to the dealer, no problem found. IACV gasket, coolant leaks past the bad seal onto the electric motor causing the computer to short out. monicawallace August 2, 2023, 5:41am 21. Re: I'm losing coolant but i have no leaks????? (12V GTI) I just had the same problem you did. Coolant is disappearing, 2 No visible external leaks, 3. If you can't smell any coolant and there are no visible signs of external leaks, then it's going through your engine - which is a bad thing. If the engine is in good working order and there are no leaks or damage, you can expect a coolant loss of 0. Water doesn’t absorb heat as quickly as coolant, so it doesn’t cool as efficiently, which is maybe why your engine is running a little warmer than it should at lower speeds. my thinking would be to pressure test the cooling circuit on a cold and hot engine. A more mysterious coolant loss problem involves no evidence at all of leaks or puddles, yet shows a definite reduction in radiator coolant levels. I kept looking but co Replace the water with the correct coolant from the user manual. Some of the coolant could also be going through the engine, catalytic converter, and out the tailpipe - which is a bad thing. I don't see any signs of coolant leak anywhere, no HG issues (no bubbling, or anything that would lead me to believe there is a problem with the HG here). Reactions: vanhalo. Blown head gasket: A damaged head gasket can allow coolant to leak into the combustion chamber, leading to coolant loss without visible external leaks. Third thing was checking the thermostat housing gasket and water pump gasket, the latter being a major pain as the timing belt housing needs to come off. I am new to the forum but have the same issue as many others with my 2017 Kia Niro Touring. I do not see any leaks. #9 thomassster, Mar 7, 2022. Faulty Head Gasket. Was experiencing high trans temps checked the secondary coolant and overflow was empty refilled and trans temps back to normal, within a few days it would be empty again trans temps going back up, kept refilling and it kept using coolant. 0 V8's have a bad habit of leaking heads causing coolant to enter the oil system and sometimes burn it thru the cylinders. Finding the source of a coolant leak can be frustrating, but it’s important to fix it promptly to avoid potential overheating issues Losing coolant no obvious leaks. cap is bad but that would mean the old and a new OE cap are both bad, so not likely. ) I am 75, I am a retired Engineer, I have owned many vehicles and know this is not normal or acceptable. Loss of coolant due to pinhole leaks might only be a few drops per month, scarcely enough to make a puddle. May also try to see if it's wet around the coolant reservoir cap after a drive - without removing the cap. My coolant would just "disappear" out of no where. My 2003 Z4 has been burning through coolant quickly. Bubbling coolant Coolant may leak internally into the combustion chamber or escape the engine through leaks. This results in coolant loss that may not leave external leaks. . Leaky Radiator. Being no visible leak standing might not be it, I'd perform a coolent pressure test either by yourself or have a shop do it. No smoke emmiting in the exhaust. How can I check for coolant leaks? To check for coolant leaks, look for puddles of colored fluid under your vehicle. Why Am I Losing Coolant but No Leaks in My Chevy? Maintenance and Repairs. BMW approved, does not mean you have to purchase BMW coolant. Want Answer 0. Here are some things I’ve considered: Head Gasket Issues: Could it be that the head gasket is Also pressure test the cap, I usually do that first. Jump to Latest They pressure tested and found no external leaks. I took it to the shop when it first leake/started disappearing four There are no visual leaks or loss of coolant. the area around the top pulley- that is the pulley attached to the water pump. 8L Strong coolant odor but no leak. Passed a pressure test. To diagnose coolant loss without visible leaks, start with a thorough inspection of the engine bay. (My previous 2019 Outback had the same problem. looks for signs of dried coolant. Not overheating, no "Low Coolant" light, already tried replacing hose from reservoir to radiator to no avail. Antifreeze, which is the official name of engine coolant, is a liquid meant to protect the engine from overheating while also lubricating the engine’s moving parts. If the coolant is going into the engine, there are two ways for this to happen. Finally did mine recently after 5 years of chasing small leaks everywhere, they were all just symptoms. If you’re also experiencing a drop in engine performance or weird stalling, it may be linked to coolant loss. I dont have coolant in oil or oil in coolant,. 0 shorty - 135K on her - and at 21 years old, the original radiator finally failed with a hair line crack, and so I bought a plastic on, from on of the part stores, put it in, and now it takes on like a gallon a month of antifressze Yeah, I've had to add coolant a couple of times myself - but only 2x in last 5 years - and only about 1-2 cups each time. Radiator fans both operating normally. Depending on the size of the leak, the coolant drop can either be gradual or catastrophic. Checked and couldn't even see the float and proceeded to add 3+ cups of coolant/water mix. (The second time is happening tomorrow when I get the oil changed) - I'm betting there's a tiny leak somewhere on one of the hoses, but now that it's out of warranty by 9k miles, not worth tearing the engine apart to find it unless it acts up more. 4. 9. About a month ago, my coolant level light came on and I topped it off. After driving home from the garage, the coolant was very low in the reservoir but the car was not overheating (staying around 90C). Posted by Anonymous on Sep 06, 2014. If your car has the rear heater/AC, you could easily lose coolant it the rear heater core, or in the tubing and hoses to it, and not notice. - but its leaking somewhere right, Since I purchased this 2007 Chevy Van a couple of years ago I kept smelling coolant every time I got out after reaching my destination. An early symptom is exactly what you have described, losing coolant with no visible leaking. The coolant reservoir looked to be down about 1" from the fill line. and for cats I am going with Magnaflow 94105's my price for them is 75 a piece 04-07-2015, 08:03 PM #17. No milky oil. Is your BMW losing coolant but the engine isn’t overheating? Don’t panic, help is here. No water in exhaust, no white smoke. iuiuo iqwk scd siqmh furrrc ctzwubk salgkg rzlgok kajejec lpol