Leaking Antifreeze But Not Overheating

I have had leaks in all coolant hoses and especially after my intake and head gaskets went along with the overheating. Some say that overheating engines are the typical shortcomings of older cars and anyone who owns one will eventually be left stuck and steaming on the side of the road. The company shop has found two loose clamps and a leaking hose. The Main Causes of Car Smells Like Antifreeze but Not Overheating. Mazda 626 Overheating Troubleshooter-----[] Low coolant [] Coolant mixture incorrect (dependent on climate zone) [] Coolant leak/puncture [] Coolant loss (often mysterious loss is a sign of a blown head gasket as coolant is burned in the combustion chamber and will show up as thick white smoke from the exhaust pipe, can cause overheating). Car overheating problems most of the time is caused by coolant leaks in the cooling system. 2011-2014 model year Chevrolet Cruze vehicles and 2012-2014 Chevrolet Sonic vehicles with the 1. Any idea of what could have caused the car to suddenly leak about 1/2 gallon of coolant and all of a sudden just stop or fix itself? There is no coolant in the engine oil and the engine is not overheating at all and it did not come from the overflow. When I've got a drip under the auto I'm not sure about, I taste it, and antifreeze is unmistakably sweet though somewhat poisonous. The most common place for a leak is the coolant flange on the end of the cylinder head. Re: Ford Taurus leaking coolant from cap. Visually inspect the radiator hoses for obvious splits and leaks that could cause coolant to be lost and overheating to occur. Evans Powersports waterless engine coolant is designed for motorcycles, ATVs, UTVs and snowmobiles. This condition causes coolant to leak into the combustion chamber. You can also buy concentrated coolant and mix it yourself. A coolant leak can definitely cause an overheating issue. Overheating usually results in warped housings, which results in the water o-rings not seating very well. On vehicles with onboard diagnostics, the leak often causes the check engine light to illuminate. You need to find the leak. Check for another potential, external leaking points, if necessary. Using a flashlight inspect the tank and if a leak is found replace the coolant reservoir tank with a new part to fix the problem. So I have looked and see no leaks and no coolant in the oil so no clue why the overflow is losing coolant. I'm hoping/wondering if that will be the same issue as mine so they can fix it quickly. Contaminated coolant is often associated with head gasket problems, but it can also be caused by a rusting or damaged cooling system component or the use of incorrect coolant. Sold as either liquid or pack-ages of water-soluble powder, they are mixed into the water-antifreeze coolant. I went to a local AutoZone and rented a pressure tester for coolant system. Has this happened to anybody else?. An antifreeze leak can occur through a hole in your radiator. The cooling system must be maintained at the proper level, mixture, and pressure to be effective. I couldn’t locate any leaks and the dealer didn’t either. but yesterday while driving on the highway the temp gauge showed that the car was overheating. Step 2 – Check cooling fan's wires. This would mean a leaking water pump. There is a leak period, when you park look under the car to see if you can see it, it may be leaking out and boiling off on a hot engine or manifold it will leave a greenish scaly lime deposit looking ring around the leak. A really good way to test for a leak I've found. What you can do about coolant leaks. 158 Responses to “Defect Alert – Chevrolet Cruze Coolant Leak” #1 dan dault says:. So they say, I have only seen coolant on the ground twice and that was coming from a clamp behind the water pump. Another symptom of this would be that your car overheats whether you are driving or idling. Ninety percent of ten time, coolant leaks are easy to locate due to the fact that many times the leak will be obvious; coolant can be seen leaking or spraying. Check your level of coolant fluid. Rob, Seems that you have checked just about everything that can cause overheating. Just open the screw and close it when coolant leaks out. Note the normal discoloration of the aluminum casting. If too low, simply add the appropriate amount of coolant and reattach the cap. Depending on your particular model, though, the water pump may be out of sight under a cover. Keeping your vehicle’s motor running smoothly and at the proper temperature is almost always a matter of staying on top of maintenance, not ignoring warning signs and making sure not to push things too hard under extreme driving conditions. Q: I have to keep filling the coolant in my vehicle every week. Get any leak fixed before you drive the Pontiac G8. Losing Antifreeze With No Apparent Leak by Chris Stevenson Whenever a vehicle loses antifreeze, also known as coolant, the usual expectation leads the owner to check for evidence of leaks at all the coolant connections and components. A leak in the water-cooling system can be hard to trace - especially if it is internal, say in the cylinder-head gasket between cylinders. There are really only three common causes for coolant leaks, although each type of leak has several possibilities, varying in severity. Last but not least, an overheating vehicle can have contaminated coolant or even a head gasket leak. Failure to replace these items on time can lead to additional failures, not just overheating. Leaking Coolant from Overflow, but not Overheating. Eventually the radiator and the. What you can do about coolant leaks. The Main Causes of Car Smells Like Antifreeze but Not Overheating. A 50/50 mixture of antifreeze and distilled water flows around the engine during use, keeping it from overheating, so a leak can mean trouble. This condition causes coolant to leak into the combustion chamber. Everything can be happening inside the engine, which requires a different strategy. Pass - No coolant leak(s) found. If it is inside the engine, it will be a hard fix. Some say that overheating engines are the typical shortcomings of older cars and anyone who owns one will eventually be left stuck and steaming on the side of the road. of being home the low coolant light came on. If your car is losing coolant and there are no apparent external leaks YOU HAVE A SERIOUS PROBLEM. If you drive even for a short time without enough coolant, your engine can seize or die altogether. If this is the case, the first thing you can do is have your radiator pressure tested for leaks. It has 97856 miles. The heart of the system is the engine and the coolant, which is a liquid mixture of water and concentrated coolant/antifreeze. The most common causes of engine overheating are fortunately all very preventable. How to Fix a Coolant Leak. It causes to overheat the engine. Check the condition of the shroud for cracks & its proper installation. They could be worn or. And the one that really baffles me is the overflow bottle will lose coolant after a few days. Check the condition of hoses and connections for leaks. or the initial head gasket repair was not done correctly and there is still a leak in the head. A kink can reduce the flow of coolant and cause the engine to overheat. If I remember correctly, water going through the heater would not go through the radiator and not be cooled. Can You Drive with a Blown Head Gasket?. A pressure test is needed to pinpoint the leak. Being able to diagnose and fix your own issues can get you back on the road quickly, prevent costly mechanical issues, and help you learn when to seek professional help. also it leaves a puddle of coolant on the ground but when you look in the overflow tank there is. Once in a safe location you will want to perform car overheating troubleshoot. Today I have added the dexcool friendly uv dye in hopes of the leak showing up. Check your level of coolant fluid. There are many causes of engine overheating and while we won’t go over all of them, we will point out some of the main causes of engine overheating and point you in the right direction for solving a overheating problem. In extreme situations, this can make a boiling effect as the exhaust escapes. 7T with less than 3,000 miles due to leaking. Eventually the radiator and the. - Cleo Bay, XK120 OTS, XK140 OTS. If your car suffers from one or more of the symptoms mentioned, it’s worth checking out. This has happened on two separate occasions now, and I've already gotten a compression check with positive results. Check your level of coolant fluid. Identifying the Coolant Leak. This morning the car overheated and the coolant was bubbling. of being home the low coolant light came on. Last night my car was running warmer than usual- at about the 3/4 mark- and after i parked it, it started to leak quite a bit of coolant. While coolant leaks lead to the engine overheating, air leaks lead to reduced performance. (Photo courtesy of Evelyn Giggles) If it's overheating, it may. have a 2001 Saturn put antifreeze in it last Friday the whole gallon 3 days later the low antifreeze light came on again (to add more antifreeze),car isn't overheating, the overflow bucket the antifre. remember coolant system is the most important system in your car!. If it is inside the engine, it will be a hard fix. To cut to the point I have been having a coolant leak and a shop has diagnosed that it is leaking from the bell housing of the transmission. As previously mentioned, there are several things that can cause a MINI engine to overheat; the problem could be as simple as refilling the coolant, or it could be more. My info is the pump seal can seep a tiny amount of coolant but there should never be any wet coolant visible and even the size of the dried coolant residue stain that can be present on the pump housing should be small, but how small the techs would not tell me. Thank you!-BDP. The jug is just an over fill. Low coolant in chevy truck 5. Leaking Coolant from Overflow, but not Overheating. Stop driving it immediately and have it serviced. leakiing on the internal floor may not occur. I've never put coolant in my vehicle, so I'm not sure if this is actually coolant. 5 years ago), busted PCM (~7 months ago), bad thermostat (~2 years ago), coolant temperature sensor (~2 years ago). Or, look under the truck to see if there is signs of coolant leaking on the water pump pulley, or the lower radiator hose. I have had the radiator replaced, the water pump is not leaking, the thermostat is good. Same with a leaking headgasket and troubleshooting things similar to that which are major engine problems and not just simple overheating. If you are continually adding coolant to the system, either you have an external leak like a radiator hose or water pump leak or you have an internal leak like from a head gasket or crack in the block etc. If your engine is overheating, check these below ways to identify. I checked the antifreeze, and it was low. It's not overheating, and once it sits and cools down a bit, the smell goes away. have a 2001 Saturn put antifreeze in it last Friday the whole gallon 3 days later the low antifreeze light came on again (to add more antifreeze),car isn't overheating, the overflow bucket the antifre. Check for Coolant Leaks. - Cleo Bay, XK120 OTS, XK140 OTS. Aside from overheating, a distinctive grinding or whining noise caused by a bad bearing is also a symptom of a bad pump. Lexus RX400h overheating, coolant leak, A/C stops working CARspec had the opportunity to address a common problem on the 2006-2008 Lexus RX400h, namely a vehicle that overheats in traffic, intermittent A/C and a coolant leak. But, things are not as complicated as they appear to be. Pass - No coolant leak(s) found. I have a 2011 cruze i dont have a leak but the smell is there when the heater is on and no response from the dealer I have been dealing with Oshawa but no fix I dont want my car to smell that why I bought a new car I WANT MY MONEY BACK if they cant fix it. Replaced it with a Land Rover Freelander IMG (cost about £8 IIRC) and now at 72k it's not lost any coolant so far. I'd be surprised if it's not a failing head gasket tbh. Symptoms of an intake manifold gasket leak include poor engine performance, engine overheating and coolant leaks. the hoses look brand new, even the one that was split in half. Step 2 – Check cooling fan's wires. If fail, document any repairs performed below. The heart of the system is the engine and the coolant, which is a liquid mixture of water and concentrated coolant/antifreeze. If too low, simply add the appropriate amount of coolant and reattach the cap. Leaking or damaged head gasket : A clogged radiator can result in engine overheating which in turn can cause serious engine damage such as a leaking or blown head gasket or cracked cylinder head which is a serious and expensive. I'm hoping/wondering if that will be the same issue as mine so they can fix it quickly. If it leaks out of the cooling system, you may be able to smell it in the cabin, particularly if the engine is hot. This pump was not leaking. Look for coolant leaks. This condition causes coolant to leak into the combustion chamber. I then opened the hood and noticed that coolant was being released through the cap. 5 years ago), busted PCM (~7 months ago), bad thermostat (~2 years ago), coolant temperature sensor (~2 years ago). At this point my car had already been running for about 5 minutes and what do you know not a trace of coolant was leaking. But this is a good place for your to start, especially if all other things considered your car is running fine, not smoking or have junk (like oil) in your coolant and so forth. Rob, Seems that you have checked just about everything that can cause overheating. You might not see any leaks or faulty components at all, but still notice your engine overheating. I went to a local AutoZone and rented a pressure tester for coolant system. Blauparts Audi water pump replacement 'Service Bulletin' pdf. My car overheated recently, and when I refilled the system, I noticed a very small leak coming from the intake. Sold as either liquid or pack-ages of water-soluble powder, they are mixed into the water-antifreeze coolant. Areas of the cooling system to check for leaks Check the core plugs in the side of the cylinder block. if you press on the radiator cap more smoke shoots out. Not 100% certain, but I also believe to high of a antifreeze percentage is not good for the system internal and maybe to stringent to the alloys used in the cooling system, I think if you read the bottle of 100% antifreeze, it never recommends 100% and only to go as high as 70-30 % ratio with water. It will give it a tan, frothy look. I checked the antifreeze, and it was low. If you don’t have coolant on hand when your car overheats, make sure to add a comparable amount of coolant as soon as possible. Sometimes when a coolant leak is not obvious you must create pressure inside the system to force the leak to appear. The Land Rover gasket was a much better fit in the manifold than the pattern one fitted at HG replacement time. Make sure you don't drive you vehicle with low coolant, so change the leaking hose, and refill the coolant reservoir. any coolant leak in the heater core would cause you to have a strong smell of coolant and the windshield will also get a film on it. Coolant keeps overflowing from my overflow tank everyday Car doesn't get past half on the temp gauge and I constantly check it and refill, but it sucks, why does it do that? my old cap was cracked when I got the car, so I got a used cap, but it is light gray and the original was dark gray, so I am going to try and get the correct cap, but is. Look forward to suggestions. the hoses look brand new, even the one that was split in half. Visually inspect the radiator hoses for obvious splits and leaks that could cause coolant to be lost and overheating to occur. Tried this method and I finally got the white smoke. Knowing how to cool an overheated engine is an important skill for any licensed driver. What if we have this problem and the antifreeze level is not low?. How the hell can I be losing that much coolant if there are no leaks, no smoke, no smells, no nothing? _____. Visually check for coolant leaks with the system under pressure. Ninety percent of ten time, coolant leaks are easy to locate due to the fact that many times the leak will be obvious; coolant can be seen leaking or spraying. leakiing on the internal floor may not occur. I cannot see the leak and the vehicle does not overheat. Eventually the radiator and the. Now 3 months later, its coming back slowly. 4L engine may have an engine coolant leak from the water pump. So I have looked and see no leaks and no coolant in the oil so no clue why the overflow is losing coolant. Or, look under the truck to see if there is signs of coolant leaking on the water pump pulley, or the lower radiator hose. Common Causes Of Engine Overheating And How To Fix Them. 3) Test for items that cause overheating without the system being low on antifreeze. Not only does the radiator stop cooling the transmission, but the resulting slurry of coolant and transmission fluid eats valves, erodes seals and speeds up corrosion. Check your level of coolant fluid. It will give it a tan, frothy look. Q: Car leaks a lot of coolant from the front of the vehicle but cannot catch it overheating on the gauge Engine coolant can leak externally through a hose, radiator, water pump, etc. My first thought was the radiator cap not being able to hold. What is Engine Coolant / Antifreeze This guide explains ‘What is engine coolant / antifreeze, what it does, why you should use it, what type of antifreeze / coolant to use and where to put it’. After some inspection it appears that a rigid hose came out of a rubber boot that attached the hose to the top right of the engine block. The most common symptom of a failed thermostat is overheating at highway speeds. Then bleed again, again, again and again. 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. where could the leak be coming from? I have a 2001 Pontiac Grand Am GT. What do you mean the oil cap is red not yellow? the color of the plastic cap will not change to indicate antifreeze?. Sure enough, he found that the radiator cap was not sealing properly. My car is not running hot is no leaks we just replace the radiator but when I take the cap off I noticed the antifreeze is not circulating in the radiator and I am concerned about that but like I said there’s no leaks it’s not overheating it’s not running hot so what is the problem. Here I show how to find, or diagnose, a coolant leak in your car. Read More. Contaminated Coolant and Head Gasket Problems. The sound and the overheating went away. The water and coolant and water level in the radiator is low. AC on or off? Only when it's hot outside, or does it matter? Overheating usually isn't that tough to diagnose if given enough details. Pass - No coolant leak(s) found. This should not be the full cause of your overheating, but would contribute. White smoke puffing out of your exhaust is usually a sign that you have a bad head gasket, and the coolant is getting into the pistons. If your engine is overheating, check these below ways to identify. Fail - Cooling system does not hold pressure for 2 minutes. Identifying the Coolant Leak. Visually inspect the radiator, engine and cooling system for leaks. Several reasons are there for causing this problem. Driving my 07 Nissan Murano with low coolant, but no overheating? Hello, I've unknowingly been driving my Nissan Murano for some time now without coolant, but the car's temperature gauge has been normal this entire time. King Dj-Slim 13,515 views. Overheating problems are as Mustang-specific as leaking. The water pump is driven by a single serpentine belt that also drives the alternator and power steering. I couldn’t locate any leaks and the dealer didn’t either. Now you need to correct the coolant level (make sure not to overfill the system) Perform a cooling system pressure test to ensure no other leaks are present. Even when avoiding leaks and other mishaps, your coolant will eventually start to break down from every day use, preventing it from protecting your cooling system properly. there is a definite leak but not excessivesmall puddles have been accumulating but the reservoir tank has remained just under the minimum line and have not changed since Friday. Any problems with the pump from erosion, leaks or anything else can cause your vehicle to overheat. But this is a good place for your to start, especially if all other things considered your car is running fine, not smoking or have junk (like oil) in your coolant and so forth. And the one that really baffles me is the overflow bottle will lose coolant after a few days. Has this happened to anybody else?. Engines are designed to run hot for excellent efficiency, but not to the extent that they overheat and damage components by overpressure or loss of coolant. Not blowing hot air in cab could indicate faulty valve that opens to allow coolant to flow through heater radiator in cabin. Coolant leaking but car not overheating - Coolant leaking but car not overheating front drivers side × We use cookies to help our site to work, to help us understand how it is used, and to tailor advertising on this and other sites. Has this happened to anybody else?. I've never put coolant in my vehicle, so I'm not sure if this is actually coolant. 0 Coolant Pouring Out Coolant Reservoir - Help. Check for vacuum leaks. This has happened on two separate occasions now, and I've already gotten a compression check with positive results. Common Causes Of Engine Overheating And How To Fix Them. The most common place for a leak is the coolant flange on the end of the cylinder head. Some say that overheating engines are the typical shortcomings of older cars and anyone who owns one will eventually be left stuck and steaming on the side of the road. If the car is overheating, the first thing to do is pull over. This would pressurise the coolant system and force water out the cap or a hose joint but if the leak was tiny the water only being a fraction of the pressure compared to combustion gasses would. Cooling System Pressure Test. But because the effects of a bad head gasket often occur internally, you may not see any leaking coolant. In the above example, the reason I suspect combustion gases leaking into the coolant is because the overheating comes with increased load on the engine. Combustion gasses are not involved and unless the engine runs low on coolant, overheating will not result. Well, that did not help and i continue to top the coolant once in a while. The car has recently had a new EGR cooler and coolant tank sensor. A sweet smell – Coolant/antifreeze has a distinct, sweet odour. Not my car- a colleagues. I couldn’t locate any leaks and the dealer didn’t either. When the head gasket fails between a cylinder and the coolant port, coolant may leak into the cylinder. And the one that really baffles me is the overflow bottle will lose coolant after a few days. Coolant, aka "anti-freeze", not only improves the operating temperature range, but it also contains anti-corrosion additives to prevent the build-up of rust within the engine. Sus-pended solids also grind away seals, caus-ing water pumps to leak. Being a newer car, I always had old cars, I didn’t look in the coolant tank for a level often. Leaking Coolant from Overflow, but not Overheating. If the water pump is leaking coolant because of a faulty gasket or faulty pump, you should be able to see the coolant leaking. Apparently, as the engine heats the coolant, it will begin to seep out from the cap. I then opened the hood and noticed that coolant was being released through the cap. or internally due to a leaking head gasket. When the stop leak did not solve it, I drained but did not flush the system. I've gotten under the car and there is coolant all over the u brace (upper area, driver side). the hoses look brand new, even the one that was split in half. An overheating vehicle is a sign that needs immediate attention. Only one time ive seen white smoke coming from the back but that happened like 3 weeks ago. Visually inspect the radiator hoses for obvious splits and leaks that could cause coolant to be lost and overheating to occur. It's easy to overlook but a bad clutch fan will cause overheating in stop & go traffic, while you're idling or out on the trail at low speeds. the other day my father informed me that its leaking antifreeze. An antifreeze leak can occur through a hole in your radiator. The leak allows additional air to mix with the fuel-air mix, causing the engine to run lean. Other times, there are leaks or clogs in the radiator. Identifying the Coolant Leak. Had to add coolant. Especially when sitting at an idle. A kink can reduce the flow of coolant and cause the engine to overheat. A 50/50 mixture of antifreeze and distilled water flows around the engine during use, keeping it from overheating, so a leak can mean trouble. There is a leak period, when you park look under the car to see if you can see it, it may be leaking out and boiling off on a hot engine or manifold it will leave a greenish scaly lime deposit looking ring around the leak. This will result in a low coolant level and decreased cooling of your engine. Some info of what i have checked so far. Check your level of coolant fluid. Changing gear ratios may generate more heat in the engine and potentially cause overheating. Q: I have to keep filling the coolant in my vehicle every week. I have a 2011 cruze i dont have a leak but the smell is there when the heater is on and no response from the dealer I have been dealing with Oshawa but no fix I dont want my car to smell that why I bought a new car I WANT MY MONEY BACK if they cant fix it. If you continue to drive your car with low antifreeze your vehicle will eventually overheat. Check for another potential, external leaking points, if necessary. Note the normal discoloration of the aluminum casting. White smoke puffing out of your exhaust is usually a sign that you have a bad head gasket, and the coolant is getting into the pistons. Green or orange liquid leaking from your car may be a coolant leak. This pump was not leaking. I added a little more coolant to top the reservoir tank off and and place the cap back on the reservoir. The latter condition does not allow the coolant enough residual time in the radiator to cool down, and the engine could suffer fatal overheating even if the coolant circulates freely through the engine via a fully open thermostat. 4L 4wd auto. If you don't have coolant on hand when your car overheats, make sure to add a comparable amount of coolant as soon as possible. What do you suggest ? A A loss of coolant does mean that there is a leak in the system …. Image 2) Water pump removed from a Vw 2. The same issue arose at night driving home from work the same day - I made it about two miles and the same problem occurred - engine overheating while steam comes off of the passenger's side of the engine. An overheating vehicle is a sign that needs immediate attention. The result can be damages to the water pump of the engine, which leads to improper circulation of engine coolant. Evans Powersports waterless engine coolant is designed for motorcycles, ATVs, UTVs and snowmobiles. Loss of coolant, antifreeze, is a major cause of overheating. If you see any obvious fluid loss on the ground or in the engine compartment, you should also have the system tested for leaks. I've gotten under the car and there is coolant all over the u brace (upper area, driver side). I would appreciate any hints. If you have a vacuum leak, you'll also notice that your truck's engine does not run as smoothly as it should. If your car suffers from one or more of the symptoms mentioned, it’s worth checking out. Engine Coolant Leak | 04 Mach 1 Coolant leak: 2006 4. If you see any obvious fluid loss on the ground or in the engine compartment, you should also have the system tested for leaks. Its the cap and plastic white bottle with coolant overflow. If your car is overheating but there are no visible coolant leaks, or damaged hoses, then there is a problem with another part of the coolant system that is stopping the. The jug is just an over fill. But I still could not find the problem causing the overheating. But, things are not as complicated as they appear to be. If your car is losing coolant and there are no apparent external leaks YOU HAVE A SERIOUS PROBLEM. of being home the low coolant light came on. It causes to overheat the engine. I cant really see if any of the plastic seams on my radiator have crapped out, but I just feel thats whats going on. Even when avoiding leaks and other mishaps, your coolant will eventually start to break down from every day use, preventing it from protecting your cooling system properly. Depending on your particular model, though, the water pump may be out of sight under a cover. HELP! i need car advice smoking/steaming from coolant resevior but NOT overheated engine isn't overheating it could be a leak or a crack or who knows what. You can also buy concentrated coolant and mix it yourself. The car has recently had a new EGR cooler and coolant tank sensor. Make sure your fans and radiator are working. A 50/50 mixture does not help cooling it raises the boiling point. Obviously, this is a bad thing. I've only had the overheating a few days after the leaking on the ground (started last week). Got pulled back to dock. Feel free to contact our technical support line at 888-863-0426 with any other questions. Symptoms of an intake manifold gasket leak include poor engine performance, engine overheating and coolant leaks. But because the effects of a bad head gasket often occur internally, you may not see any leaking coolant. So are you having a problem with overheating or is the coolant in the radiator dirty or rusty? Does the inside of your radiator or your radiator cap look like that of the picture above? If you are NOT having an overheating problem but the coolant is dirty or rusty then yes, flushing that old coolant out and installing new coolant is a great idea. alone, enough to cause overheating. A kink can reduce the flow of coolant and cause the engine to overheat. On vehicles with onboard diagnostics, the leak often causes the check engine light to illuminate. Check all hose connections for tightness, but ensure that. It has 97856 miles. If coolant is leaking from the engine then you should not drive your MINI; you should have it towed to the nearest, reputable automotive specialist for an accurate diagnosis. Any thoughts on the overheating issue and then subsequent not-starting of the engine? I read that the 2011 Cruze had a recall on the water pump that was causing a coolant leak. Keeping your vehicle’s motor running smoothly and at the proper temperature is almost always a matter of staying on top of maintenance, not ignoring warning signs and making sure not to push things too hard under extreme driving conditions. I'm going to check the coolant tank and oil level when the truck cools down a bit more. Or, look under the truck to see if there is signs of coolant leaking on the water pump pulley, or the lower radiator hose. Leaking or damaged head gasket : A clogged radiator can result in engine overheating which in turn can cause serious engine damage such as a leaking or blown head gasket or cracked cylinder head which is a serious and expensive. My car is not running hot is no leaks we just replace the radiator but when I take the cap off I noticed the antifreeze is not circulating in the radiator and I am concerned about that but like I said there’s no leaks it’s not overheating it’s not running hot so what is the problem. This is the result of minimum coolant contamination for this type of mileage. If it is a slow leak, might be able to add coolant so often to keep it cool. If an inspection of the dipstick shows the oil to be bubbly, watery or chocolate milk-like in appearance, the engine is indeed showing symptoms of a blown head gasket, the likes of which could be due for emergency maintenance. Some info of what i have checked so far. The most common symptom of a failed thermostat is overheating at highway speeds. That could cause an Pontiac G8 engine fire, and you could be burned. In that time it's reduced to NONE in the tank (I still have enough in the system because it's not overheating). where could the leak be coming from? I have a 2001 Pontiac Grand Am GT. Hello, a coolant leak with no external leaks leads me to believe you might have an internal leak at the head. Contaminated Coolant and Head Gasket Problems. Wait until the car is cold and pour some 50/50 coolant in the radiator. Pass - No coolant leak(s) found. Can You Drive with a Blown Head Gasket?. Common Causes Of Engine Overheating And How To Fix Them.