Car Smells Like Antifreeze Outside But No Leaks



The Main Causes of Car Smells Like Antifreeze but Not Overheating. It's a pretty good running car and seems well taken car of, however, it burns through oil and coolant like crazy. I talked to a guy at work about it and he said something about a frost plug. So I grabbed a thick rag and. They didnt find anything. In the middle of this winter, I have noticed that for the first time I can smell the strong odor of the Anti Freeze but there are NO leaks on the ground in the garage or anywhere. Before I cleaned my coolant expansion tank, I could tell that the pressure had blown out of the cap, there was some kind of residue around the coolant reservoir cap. Look for leaks, seepage, etc Especially look at the thermostat housing really good for seepage. I had a new headliner put in my previous car and not only did the car have a strong smell of the contact cement they used it also smelt like bad body oder. So I'd check for that first. My minivan had a head gasket leak for a long time (it was really old and beaten up), trust me, I know what that smells like. after dinner, we got back into the car and as we were leaving the parking lot, inside of the car smelled like dog poop!!!. Don't hesitate and get this done. I did smell the brakes, though! (You could feel the heat coming from them, too). if you smell it inside the car it could be the heater core leaking. The color of the oil on the dipstick also looks normal. If your car has a smell like rotten eggs, it's an early warning sign your emission system is not working properly, you might even encounter the check engine light being on if you have this car odor. If you suspect your car leak might be coolant, try to locate where it's coming from, the most common area for a coolant leak is the front of the vehicle, right under the radiator, but. This is a big deal to me because I dont want to pay 5,000 for a car that will immediately have issues, it only has 85,000 miles on it. took it to the dealership and they said it was the front seal on the water pump and replaced it. Result: Coolant smell, but no coolant dripping on the ground. If you can pop the hood of your car, you can use a car leak repair product from Bar’s Leaks. Lots of threads yes, but the smell doesn't necessarily mean a leak. You can add the UV dye to your engine cooling system and drive your car for a few days to make sure the dye circulates through everything. It’s not really that serious if you find a little engine oil drip, but if you can smell burning oil while driving, or the drips on the ground smell gassy with a “cooking oil” smell, then it might be an engine oil leak. RAY: But if you don't find any pizzas, it probably is antifreeze. Many on Vortex from 2. This is usually a sign of an old, worn out engine in need of some serious repair and regular maintenance. 2004 corvette. Look carefully at clamped connections. I noticed the smell the middle last week. Still, I have no reason to believe that a head gasket leak would cause a coolant smell only when you are using the AC, unless you only get outside air in with the AC and inside air in with the heater. The smell is inside and out around hood. I had the same problem with coolant smell, falling coolant level and no evidence of a leak. (Outside the cab) I took it into the dealer and they said the EGR cooler had failed. Touched them and all looks good. The car seems to run normally, and I have a tendency to forget about the smell until I'm on the way to work or leaving at midnight. Possible solutions when your car AC smells like burning plastic:. That would be an easyer fix though. 3 AWD Sport, about 590 miles on it so far. Leak was located in an area where it would drip down onto or close to the exhaust manifold and evaporate. most of the time it is the heater core. This is usually a sign of an old, worn out engine in need of some serious repair and regular maintenance. What happens if I drive without antifreeze in my car (no water / no antifreeze)? This is my main question. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your Torrent's engine and keeps it from overheating. Since then I have been smelling coolant when i get out of the car or if i have my windows down and I am driving slow. Chances are that it happens due to an internal or external coolant leakage or a leak in the radiator cap. I know if you smell antifreeze when you turn on the heater that is a bad thing. No more smell. What could be causing the coolant smell outside of the car? I am just curious. Coolant has a sweet smell like candy, if your car is leaking coolant or antifreeze, you will notice the sweet smell coming from your engine compartment or inside your vehicle if you heater core has failed. Car doesnt overheat, nor does it smell inside the cabin, only smells after driving the car for a while and parking in the garage. In addition to keeping the water and coolant level where it needs to be, you can prevent trouble in your car’s cooling system by keeping an eye out for leaks and replacing old or damaged hoses. 3- No, seriously. If you suspect you have a coolant leak, you may be able to smell it. The amount of Freon contained in the cooling systems of appliances is regulated to be at safe levels, well below any level that presents a threat to your health, but if your sense of scent is sensitive, the Freon smell can be overbearing. I smell it at the drivers door when, I shut off the car and get out. I don***8217;t want to jump to conclusions but it seems that if I turn the heater on, it causes pressure to build up and coolant leaks from around that hose on the expansion tank. check the floor board on the Passenger side of the car if it is wet you have a leaking. So, my only problem with the car is the smell of coolant when I open the hood. Coolant smell, but no leaks! While my 2003 V8 Sport Edition is running normally, or immediately after driving it, i can smell the scent of the coolant. If the engine leaks coolant, it will be burned by the heat of the engine and then come out as smoke from the exhaust. There is no noticeable loss of coolant but the strong smell bothers me. I would appreciate any hints. 2006 Dodge GrandCaravan 80K miles TIA…. Olympic Luger Chris Mazdzer No Worries in S. Here lately, after the truck has been running and I stop and idle, the smell of antifreeze is pretty strong. there is a distinct smell of antifreeze when you are outside the vehicle. The problem often occurs when the engine is hot, and reportedly fills the passenger area with what one consumer called "a dead animal smell". Adding Leak detection dye to the coolant can make a slow leak easier to find. i have a 1989 240SX sometimes (not all the time) when im driving up a hill for a long time or im hard on the gas the car faintly smells like antifreeze, not overwhelming or anything but definetly a smell. A burn t smell: When an engine gets very hot you will be able to detect a slight burnt smell. If so then you need to have the HVAC ducting replaced. As for the exhaust leak if you find a suspect spot but want to be sure, I was told of the baby powder method and it works a treat. If the coolant tank is full, the problem may be electrical or mechanical in nature, in which case a tow to the nearest repair shop is definitely in order. This coolant issue is getting to be ridiculous. It takes at least five months to empty enough coolant to cause an overheat. What is smells like: Refrigerant smells a little like the coolant in a car radiator because coolant is a type of refrigerant. Freon has been described as possessing a very pungent ozone or gasoline smell as well as smelling like cosmetic nail polish remover. I had the same smell and found after removing the heater core that it did not appear to have been leaking,however on closer inspection I was able to see that where the cooling tubes meet the side tanks there was clearly corrosion and that there was a small seep. Why Is My Car Leaking Oil When Parked? It is often said that changing the oil is the single most important thing you can do to take care of your car. Frantic car owners may begin to ask “why does my car smell like gas” and feel like their vehicle is dangerous to drive. Nor is it leaking anything on the ground. Mind that antifreeze is extremely toxic for people and pets. Coolant smells a bit like maple syrup. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. A problem with antifreeze might also be causing white smoke to come from the exhaust. What could be causing the coolant smell outside of the car? I am just curious. A sweet-smelling aroma and antifreeze smell could indicate that the car's heater core is leaking. First, though, let’s take a look at what could be causing your vehicle to smell like antifreeze. Mine is a 3. I guess the fluid was burning off somewhere, but I never smelled anything unusual in the cabin or outside. you need to clean engine then look for coolant. Left unchecked, a coolant leak can lead to your engine overheating and your vehicle dying on the side of the road. It's not overheating, and once it sits and cools down a bit, the smell goes away. Most auto parts stores sell UV dye and light kits. I can see where the oil is leaking on the ground so that's a leak, but there's no coolant leaking at all. That has seemed to cut down on the post-rain mildew/wet sock smell. The amount of Freon contained in the cooling systems of appliances is regulated to be at safe levels, well below any level that presents a threat to your health, but if your sense of scent is sensitive, the Freon smell can be overbearing. took it to the dealership and they said it was the front seal on the water pump and replaced it. The hoses themselves (the ones I can reach with my nose anyways) don't smell like coolant. Popped the hood and the coolant was a good 1-1 1/2" below the cold fill line. It's not running hot. That truck had coolant leaks till I got rid of it 7 years latter. 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. I could not find any evidence of a coolant leak except the tell-tale coolant smell. I'm going to check the coolant tank and oil level when the truck cools down a bit more. We explain what it is and why it’s essential to the good health of your car’s engine. I did buy a heater core but returned it 'coz I did not smell any coolant in the compartment. Mind that antifreeze is extremely toxic for people and pets. Its not going into the engine, changed the oil and it was clean oil… Not leaking from exhaust pipe, not leaking from anywhere. They didnt find anything. • The smell of gasoline when the engine is running (stop and check immediately! — do not start or drive the vehicle if a fuel leak is present) • Visible fluid leakage on the pavement under your car (except air conditioning condensation) • A sweet burning smell (indicates a coolant leak). That could be a possibility but being that this smell is intermittent I would like to think a possible leak would rear it's ugly head when the coolant is hot and pressurized from the water pump. Thermostat has already been changed… Where is it going I looked at everything, no smell in car, no wet spots on carpet, outside of car does smell like antifreeze after running for awhile. Only to find out after popping the hood that my coolant level was extremely low. I can’t get the drive side window or side windows to clear up when it’s humid and there is a need to clear the glass. 4: Your Water Pump Has Failed. Korea … Just ‘Don’t Be Stupid’ Like Lochte 2/13/2018 1:15 PM PST EXCLUSIVE America’s Olympic Luger Chris Mazdzer says he isn’t having any issues in or out of the Olympic village in PyeongChang ’cause Ryan Lochte taught him exactly what NOT to do. And I've noticed that sometimes the defroster leaves a film on the lower part of the windshield inside. My car smells hot. Smell your exhaust and get back to us. This kind of a problem means it's a good idea to take your car into a professional. My elantra occasionally has a smell of fuel which is so strong you can smell it outside of the car. As far as EGR cooler, there is no EGR cooler to leak so that's not the problem. If you're looking at a particularly costly repair on a beat up old car, you may want to just sell your junk car for cash rather than having it fixed. WHEN: especially if you smell it outside the car. Still, I have no reason to believe that a head gasket leak would cause a coolant smell only when you are using the AC, unless you only get outside air in with the AC and inside air in with the heater. Like engine oil, the source of an antifreeze leak is usually in the front part of your vehicle, close to the engine. Freon Leaks Freon. I can walk in a parking lot and tell if a car is leaking coolant. Any ideas on an area to look at? Is this one of those things that it's a simple fix (a loose overflow cap, or a common known issue otherwise)?. Either it is steam, coolant leak at the head gasket, oil leak at the turbo seals, or a bad cat. simply stale, acrid like burning rubber, or distinctly urine-tinged, all of these different gross car heater smells can be associated with a specific problem, which means each also has its own specific fix. Well, that did not help and i continue to top the coolant once in a while. Coolant leaks, if ignored, can lead to an overheated engine in your 2013 Ford Escape SEL 2. Mercedes-Benz E-Class and E-Class AMG: How to Stop Radiator Leak. The coolant that your engine uses is held in an internal tank within the engine block. I am acutely aware of the smell because we just had a water pump go out on our minivan so I have smelled A LOT of coolant lately LOL but same for me, no leaks, no temp issues, levels in reservoir seem constant, so nothing I am overly worried about. You'd smell it after the engine was hot (not before), and after getting out of the car. i would recommend taking the bottle out, cleaning it, filling it with water and let it sit overnight on dry newspaper to see if there is anyleak. Freon is added to a closed looped system and continuously recycled. Ignoring a coolant leak could result in your engine overheating and leaving you in need of roadside assistance. The sooner you diagnose car leaking, the more likely you are to prevent further damage. At 41,000 miles the coolant reservoir dropped low. If your car's temperature goes into this zone or hovers close to it even though you haven’t driven far, the engine is overheating. I noticed the smell the middle last week. Yep definitely smell coolant What the hell GM? Seriously, what the hell? Also, actually edited this video outside of youtube In windows video editor. I get a strong smell of coolant in the engine area. Mind that antifreeze is extremely toxic for people and pets. Never going back after my 1st test drive. And I've noticed that sometimes the defroster leaves a film on the lower part of the windshield inside. There is no obvious leaks and the truck is not running any warmer than normal. My 1998 BMW radiator blew a hole in it when my car overheated after the serpentine belt slipped off the idler pulley, JB Weld would not bond well to the type of plastic, however JB Weld stick done in layers will, just sand the area first and clean it will alcohol, my repair held up for nearly a year before starting to leak again. I smell coolant burning on my Ford F-150 year 2001. Antifreeze is used to stop your car from seizing up in cold. That has seemed to cut down on the post-rain mildew/wet sock smell. I had the same problem with coolant smell, falling coolant level and no evidence of a leak. It came with a new windshield, new tires, new brakes including rebuilt calipers, recent battery. A sweet-smelling aroma and antifreeze smell could indicate that the car's heater core is leaking. 1997 - 2003 F150 - antifreeze smell but no leakhelp - 97 4. Antifreeze can smell like fish, and it CAN leak into the car through the heating system. Run the car for one minute and recheck the coolant level. The climate control system might, under some circumstances, also conduct exhaust smells, burning oil smells, fuel smells,or other odors from the engine compartment into the passenger compartment. I went to the dealer, they can't find any leaks in the system. After a few minutes the smell is gone. TOM: Well, Joyce, when I detect a fishy odor in my car, it's usually because my brother left another half-eaten anchovy pizza under the back seat. It should smell a little sweet and feel like greasy water. Some coolant hoses (the heater hoses) go into the passenger compartment itself. You can also smell coolant from inside the car from leaks on other areas such as from the thermostat o-rings and the back of the engine since it tends to fall on the heater hoses. I checked it out at lunch and the smell is pretty obvious. if you smell it inside the car it could be the heater core leaking. An overheated engine is a continuation of the coolant leaking problem. Brand: Chevy Silverado smells of antifreeze on outside. i have a 1989 240SX sometimes (not all the time) when im driving up a hill for a long time or im hard on the gas the car faintly smells like antifreeze, not overwhelming or anything but definetly a smell. Leak was located in an area where it would drip down onto or close to the exhaust manifold and evaporate. Question: Why is My Car Leaking Water? We were about to leave on a little road trip, and I had the car running in the driveway with the A/C on while we packed. I would appreciate any hints. I have a very strong coolant smell inside the car when heat is on and a strong coolant smell outside of the car. Result: Coolant smell, but no coolant dripping on the ground. Have you had a chance to take a peek under the hood, or under the car when you smell it?. Watch this free video to see how to fix minor coolant (antifreeze) leaks in a 2013 Ford Escape SEL 2. The problem often occurs when the engine is hot, and reportedly fills the passenger area with what one consumer called "a dead animal smell". They have advised to change the coolant reservoir cap. Don't hesitate and get this done. Sometimes, gasoline fumes from gas stations’ pumps can get into your car if you let the car doors or windows open, causing gas smell. I had a small wreck which just dented in the front right bumper. I have no other ideas. Korea … Just ‘Don’t Be Stupid’ Like Lochte 2/13/2018 1:15 PM PST EXCLUSIVE America’s Olympic Luger Chris Mazdzer says he isn’t having any issues in or out of the Olympic village in PyeongChang ’cause Ryan Lochte taught him exactly what NOT to do. This is a very common coolant leak for Honda Ridgeline, and Pilot. Now, this probably will not show up in oil analysis, it may but so far in my case it has not and I believe I have a similar problem. • The smell of gasoline when the engine is running (stop and check immediately! — do not start or drive the vehicle if a fuel leak is present) • Visible fluid leakage on the pavement under your car (except air conditioning condensation) • A sweet burning smell (indicates a coolant leak). I did buy a heater core but returned it 'coz I did not smell any coolant in the compartment. Cover the spot in baby powder and have someone start the car while you watch. It's immediate, before the engine heats up. But what happens to a car when there’s no coolant in the system? In this guide, we’ll look at: What happens to an engine with no coolant; How modern engines deal with low coolant and overheating. Brand: Chevy Silverado smells of antifreeze on outside. Coolant Leak. My New Atlas S 4motion V6 7000 miles already has a coolant leak. I had the same problem with coolant smell, falling coolant level and no evidence of a leak. Didn’t really have a smell. Often, a small crack or leak in the top plastic tank will allow a little bit of coolant to seep out, but it evaporates before it can drip down the entire length of the cooling tubes. Olympic Luger Chris Mazdzer No Worries in S. When that happens, it can no longer keep the engine oil and coolant separate, which is extremely dangerous and can lead to engine failure. If you continue to drive your car with low antifreeze your vehicle will eventually overheat. I'm going to check the coolant tank and oil level when the truck cools down a bit more. Since then I have been smelling coolant when i get out of the car or if i have my windows down and I am driving slow. I noticed the smell the middle last week. I have a very strong coolant smell inside the car when heat is on and a strong coolant smell outside of the car. A sweet-smelling aroma and antifreeze smell could indicate that the car's heater core is leaking. 90 wt gear oil (used in some manual transmissions) looks very much like engine oil, especially when it's spread all over the underside of a vehicle!. Im smelling antifreeze outside of my car when it's running - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. The climate control system might, under some circumstances, also conduct exhaust smells, burning oil smells, fuel smells,or other odors from the engine compartment into the passenger compartment. Auto Diagnosis - What's That Smell? SMELLS LIKE: MAPLE SYRUP. They didnt find anything. The sooner you diagnose car leaking, the more likely you are to prevent further damage. No lose of coolant (yet), no drips and no sign of leaks (powder residue). Outside only. If your car has a smell like rotten eggs, it's an early warning sign your emission system is not working properly, you might even encounter the check engine light being on if you have this car odor. There are a variety of different fluids in a today’s automobiles, and you don’t have to take a class in automotive technology to be able to recognize them. Is BMW coolant warning message on, even though the coolant level is correct? This may be caused by outside temperature fluctuations or when using certain incompatible. You need to figure out why it smells gas and where it comes from so that you can immediately take action. I can't smell it when I park outside, but every time I park it in my garage I smell coolant. It has 140,000 miles without a single leak and it runs and drives like new. i have a 1989 240SX sometimes (not all the time) when im driving up a hill for a long time or im hard on the gas the car faintly smells like antifreeze, not overwhelming or anything but definetly a smell. 3- No, seriously. Hello, Whenever i drive for a while and get out of the car, i smell burnt coolant. There isn't any overheating etc. 4: Your Water Pump Has Failed. Can't see any gas, no drips, and I'm not getting a check engine light. Coolant can be green, orange, or bright pink. Can't see a leak anywhere, no puddles under car anytime. Smell coming out of side vents after driving the car, not to sure how to explain the smell def doesnt smell sweet, maybe more like dry rubber? no visible leaks. Either it is steam, coolant leak at the head gasket, oil leak at the turbo seals, or a bad cat. if you can smell antifreeze, you have an antifreeze leak somewhere. It's not leaving spots, there's no smoke, and the heater works fine, blows very hot. If you were to smell coolant, it smells sweet like candy and it even has a sweet flavor because it's wood alcohol (don't ask how I know what it tastes like). A sweet-smelling aroma and antifreeze smell could indicate that the car's heater core is leaking. RAY: But if you don't find any pizzas, it probably is antifreeze. Coolant is pouring from under the passenger side right near the tire, and when i say pouring I mean exactly that. I added more fluid and it dropped again. (I thought the smell was due to a gas can stored in the garage, that I have since removed). Still, I have no reason to believe that a head gasket leak would cause a coolant smell only when you are using the AC, unless you only get outside air in with the AC and inside air in with the heater. I believe that over time the core would have failed if I had. Open the hood no smell and no visible leak. Trying to trace coolant leaks once you find them can be another struggle. All vehicles need some form of coolant. Before I cleaned my coolant expansion tank, I could tell that the pressure had blown out of the cap, there was some kind of residue around the coolant reservoir cap. It's not running hot. It was leaking from the Water Housing Gasket before, and I replaced the gasket, removing all the excess and such, maybe I just put it on wrong?. You can add the UV dye to your engine cooling system and drive your car for a few days to make sure the dye circulates through everything. Even though I smelled it when I dropped off the car. Sometimes I think I can smell coolant, but can't be sure. A sweet smell inside or outside of a car is a sure sign that the car is leaking antifreeze. They did smell an odor similar to coolant, but they did not seem to agree with me that it was a coolant smell itself. Is BMW coolant warning message on, even though the coolant level is correct? This may be caused by outside temperature fluctuations or when using certain incompatible. It has a slightly sweet aroma. ENGINE OIL / MOTOR OIL Light Brown to Black (Semi-Thick to Thick and Slippery) Smells like: Cooking oil. Actually kind of having the same issue, except mine is retaining the coolant I put in it. Trying to trace coolant leaks once you find them can be another struggle. I have a 2014 - same symptoms. The problem often occurs when the engine is hot, and reportedly fills the passenger area with what one consumer called "a dead animal smell". I carry Dex-Cool pre-diluted for just such an occasion. Popped the hood and the coolant was a good 1-1 1/2" below the cold fill line. One cause of white smoke from the exhaust might be the engine leaking coolant. When that happens, it can no longer keep the engine oil and coolant separate, which is extremely dangerous and can lead to engine failure. simply stale, acrid like burning rubber, or distinctly urine-tinged, all of these different gross car heater smells can be associated with a specific problem, which means each also has its own specific fix. The challenge is locating the part of the car in which the leak is located. It's not leaving spots, there's no smoke, and the heater works fine, blows very hot. Watch this free video to see how to fix minor coolant (antifreeze) leaks in a 2013 Ford Escape SEL 2. However I've noticed in the past week or so, that I can smell just a hint of warm antifreeze outside the truck especially towards the grill. They didnt find anything. if you smell it inside the car it could be the heater core leaking. It should smell a little sweet and feel like greasy water. If you can't find it outside, check the passenger footwell, which is a common area for coolant leaks. Leaking coolant is one of the more common types of fluid leaks on Torrents. most of the time it is the heater core. If oil leaks into the either the combustion or exhaust system, it is going to be burned. My 1998 BMW radiator blew a hole in it when my car overheated after the serpentine belt slipped off the idler pulley, JB Weld would not bond well to the type of plastic, however JB Weld stick done in layers will, just sand the area first and clean it will alcohol, my repair held up for nearly a year before starting to leak again. Or maybe one of the hoses going to it. Not sure where its leaking from but its going down and there is a puddle under the car. ENGINE OIL / MOTOR OIL Light Brown to Black (Semi-Thick to Thick and Slippery) Smells like: Cooking oil. The smell is inside so is the leak. gas is added to the compressor of the AC unit. Once this happens, your engine will eventually overheat. It has a slightly sweet aroma. This is usually a sign of an old, worn out engine in need of some serious repair and regular maintenance. 2004 corvette. • The smell of gasoline when the engine is running (stop and check immediately! — do not start or drive the vehicle if a fuel leak is present) • Visible fluid leakage on the pavement under your car (except air conditioning condensation) • A sweet burning smell (indicates a coolant leak). I was getting a antifreeze smell, looked through the whole system and no leaks. Thermostat has already been changed… Where is it going I looked at everything, no smell in car, no wet spots on carpet, outside of car does smell like antifreeze after running for awhile. Chevrolet Cruze Coolant Leak Causes Bad Smell for Drivers. It smells like coolant after it warms up to temp. you need to clean engine then look for coolant. After about a month, my battery died. The color of the oil on the dipstick also looks normal. It's also my first non domestic vehicle. Check underneath your car for the source of the leak. I can walk in a parking lot and tell if a car is leaking coolant. However I've noticed in the past week or so, that I can smell just a hint of warm antifreeze outside the truck especially towards the grill. Did you check for dried coolant around the outside of the neck of the radiator. Always use the right kind of antifreeze for your car and keep it at the correct strength, otherwise internal rust or sludge may result. WHEN: especially if you smell it outside the car. If you have a car leaking coolant, catching it early is crucial. Korea … Just ‘Don’t Be Stupid’ Like Lochte 2/13/2018 1:15 PM PST EXCLUSIVE America’s Olympic Luger Chris Mazdzer says he isn’t having any issues in or out of the Olympic village in PyeongChang ’cause Ryan Lochte taught him exactly what NOT to do. Either it is steam, coolant leak at the head gasket, oil leak at the turbo seals, or a bad cat. I got it for $10,500 in Seattle area. I own a 2002 745i. This reminds me of the issue I had with my 2012 Passat TDI. Rotten Egg Exhaust Smell. Coolant leaks: When to fix it or just live with it The smell of coolant and/or a whitish cloud of smoke from the exhaust at startup can be an indicator of coolant in the combustion chambers. And it was kind of like maple syrup! So maybe it is coolant, however I see (or smell!) no sign of leakage anywhere in the engine compartment or under the car. by Homeowner (Long Island, New York) All last summer a strong fish smell seemed to be coming from our mud room (no a/c vents in there, but there is a trap door in the ceiling to the attic which right next to it is the central air conditioner system). This coolant issue is getting to be ridiculous. Ive checked levels and they are always normal. No signs of leaks anywhere. I don't have this issue, but when I walk into the garage after my wife turns off the van I get a whiff of what smells like antifreeze. Never saw any coolant under the car. The Main Causes of Car Smells Like Antifreeze but Not Overheating. Cause it only leaks when the car has been sitting outside, overnight. Mind that antifreeze is extremely toxic for people and pets. (as far as I know). Before going to the repair shop, though, you can check to see if the following reasons are causing that unnerving scent. Right before I noticed the leak, there was a burning smell, almost like burnt plastic or rubber coming from under the car. I have been getting a coolant or antifreeze smell in my 2007 Nitro SLT with 37,000 mi. (as far as I know). A strong odor inside the passenger compartment probably means a bad heater core. All vehicles need some form of coolant. Nevertheless, it is something that many automobile owners delay—and the results of procrastination can be dire. check the floor board on the Passenger side of the car if it is wet you have a leaking. it will generally pool on ground under vehicle unless it is leaking onto engine. 3 Causes of Coolant Leaks. Why Is My Car Leaking Oil When Parked? It is often said that changing the oil is the single most important thing you can do to take care of your car. Best Answer: every car has what is called a heater core its underneath ur dash it can be possible that its leaking in ur car and u just are looking in the wrong spot usually their are 2 hoses coming off the water pump and they run in to the heater core and it takes the heat from twhat the engine is producing and thats how u get ur heat. Leak was located in an area where it would drip down onto or close to the exhaust manifold and evaporate. you need to clean engine then look for coolant. The main problem I'm seeking help with, and I've had since 2010, is a slow and undetectable coolant leak. I was getting a antifreeze smell, looked through the whole system and no leaks. The Main Causes of Car Smells Like Antifreeze but Not Overheating Several reasons are there for causing this problem. Coolant smell, but no leaks! While my 2003 V8 Sport Edition is running normally, or immediately after driving it, i can smell the scent of the coolant. The sooner you diagnose car leaking, the more likely you are to prevent further damage. No signs of leaks anywhere.