), but the blown head gasket can also cause the engine to overheat. While driving, keep an eye on the temperature gauge. The purpose of the test was simple: to measure the amount of time it takes to warm up the Firefly's 1.0L / 993cc engine from a cold soak (over night) condition with two different block heaters, separately and then combined. Schedule an engine service as soon as possible if you think your engine is starting to overheat. No-one can predict how much overheating it takes to cause a problem. Contents show. A P0117 check engine light came on. I installed it in December, 2005. At this point all you can really do is fix the leak then drive it and see what happens. The block heaters in question are: A 300 watt external bolt-on element style heater. Once an engine gets hot enough for the coolant to boil, a number of events may take place, all of which might mean the end of the engine. It will take about 20 - 30 minutes for the engine to cool down on average. Chevrolet Aveo forum - AveoForum.com: discussion of the Chevrolet Aveo and its siblings (Pontiac Wave, Pontiac G3, Suzuki Swift+, Daewoo Kalos). How long would it take to circulate then? There's a clattering sound when changing gears. Time how long it takes the engine to warm up enough to produce heat when the heater is turned on. There are some steps that will make the whole situation much easier. Most people don't and rely on shitty Firestone mechanics. In other words, what's the shortest time needed for the maximum temperature rise? So be prepared to ask questions concerning labor, machining, measuring, and so on. Here’s a quick rundown of how to cool an overheated engine and what to do to keep yourself safe. 100+ Hypermiling / ecodriving tips for better gas mileage, Everything old is new again: Car and Driver magazine modifies an econobox to improve MPG, Project Convertible XFi: alfresco efficiency, The floor is yours: MetroMPG opens a fuel efficiency forum, Mini-experiment: cold start fuel consumption and warm-up time, Discussion of this experiment at EcoModder.com, Test details: two block heater styles tested. This is extremely not good. yes... or the scrap yard depending on what it is.. i have a few tests.. some easy.. some not.. cold engine... block the radiator overflow.. easy on some.. hard on others.. see rule 1.. remove radiator cap... place some saran wrap over the radiator filler neck.. push a shallow depression in the thin sandwich wrap.. secure to the filler neck with a rubber band. Expensive. If you are still getting high temp readings you might want to check to make sure that your thermostat is working and replace it if needed. If it takes more than five minutes for the heater to produce heat, it is a sign that the thermostat is stuck open, allowing all the coolant to flow all the time. you could add 1 squirts of motor oil to each piston thru the spark plug hole but that requires taking out and replacing all the spark plugs.. with a complete assembled engine.. the car can still be started and moved for 1 minute without additional damage usually.. i hate pushing cars. so you burn off any coolant in the cylinders and then lube them down with the WD40.. this can prevent RUST damage to the cylinder walls and pistons while awaiting head removal to happen. Regardless of the wattage, about 75 minutes appears to be about the time the temperature rise starts leveling off, give or take 15 minutes. What's worse, in an engine this hot, the pistons might swell. My reasoning was that if I kept it off boost, the engine probably wouldn't generate too much heat and probably wouldn't cook itself too badly. A lesser known system that assists in cooling the engine is the engine oil itself. Note: the engine was started and idled for 30 seconds every 15 minutes to mix and circulate the coolant past the temperature sensor to get an accurate reading. Fans Work, No Coolant Leak, Revving The Engine Does Nothing. This data may translate to other small engines, but anecdotally, I've read that 2.5 to 3.5 hours are required for a 3.3L V6 engine to reach a stable temperature with a 400 watt heater. But now you have 2 problems, why did it overheat in the first place and what damage did that do. If you can't start it, you don't have much choice but to take it to a mechanic. Only drive when the engine temperature is low. Now, what if you were driving around and your engine was hot, and then you turned it off for, say, an hour, and started it up again. It might just take some machining to get things flat again to work right. Often the cost the even find the problem exceeds the cost of actual repair. Adding coolant does nothing to address the problem that caused your engine to overheat in the first place, but it often allows you to drive safely to the nearest repair station. The question this post addresses is: how long should you plug in a block heater? After the coolant temp goes down, I try starting it, but it won't start. - How long does it take for an Internal combustion Engine to get the engine block overheated after a cooling system failure? A good mechanic or machinist will measure the mating surfaces and compare to the original manufactures specifications. To cool an overheated engine, start by turning off your vehicle and waiting for steam to stop coming out of the hood and the engine to cool down, which can take 30-45 minutes. You're fucked. No-one can predict how much overheating it takes to cause a problem. Turned it off immediately. Hoses connect these parts and circulate coolant through the system and the engine itself. Published: April 2019. When this system fails due to a leak or an engine mechanical or cooling system failure it will enable the engine to overheat which will produce internal damage and cause the engine to stop running. This causes it to take a good deal longer for the engine to warm up. If the overheating problem is not recurrent, the problem might have been caused by factors such as driving during a hot day, leaving the air-conditioning on, or being stuck in traffic congestion. When summer comes and drivers crank their air conditioning (AC), vehicles can overheat, even if they’re serviced regularly and running well. Anything beyond 2 hours is a waste of power. I installed one in. Pull over and shut off the car. How does a pump overheat? Use whatever coolant you can till you can get to a place where you can properly address the issue, or call a tow truck. Allow the engine to cool for at least 15 minutes. Recipe for getting 99.7 mpg from a Geo Metro, Aerocivic.com - famous aerodynamic Honda Civic gets a web site, Snapshot: effect of tire pressure on rolling resistance. It doesn't take much to warp the head which causes the headgasket to let go. Follow this step by step guide and get all the air out quickly and safely. Overheating car. Not much on a modern engine with an aluminum cylinder head. Let it cool down for another 15 minutes and then drive home (just a few blocks). How to know if your engine is overheating. Keep an eye on the temperature gauge, as it should move back to a normal range as the engine cools. Started driving home and noticed a burning smell. If there is steam coming out of the engine, the engine can even take up to 30 minutes to cool down. Temperature readings were taken from a ScanGauge every 15 minutes. However, drive only as long as you stop and turn off the engine whenever the gauge gets close to the red, and let the engine cool down until you drive again. But it'll save you sanity and money. To avoid doing damage to your engine, it’s important to stop driving and assess the situation right away if you notice your engine temperature gauge moving into the hot zone. It could be a fluid leak of some kind, so don't wait until everything has drained out before taking care of it. if there is coolant in the oil.. its all over.. engine or scrap yard time.. expect.. all the coolant hose to be replaced.. the water pump.. the timing belt, idlers and tensioners on those type of motors.. sometimes the timing chain , tensioners and guides on some. It can be anything from fine, to head gasket, to warped head/block or bottom end damage. why did it overheat is now secondary, but could be: no system pressure due to a cap or a leak, no circulation, insufficient cooling of the coolant due to inoperable fans or a radiator blockage, why won't it start: low compression due to a head gasket failure, fuel boiling/vapor lock/etc, mixture problem due to misread coolant temp...etc. Map 5700 Sunrise Highway, Sayville, NY Today 9-8pm (855) 418-0236. Toyota's hybrids (like the Prius) employ their thermos-like tanks to preserve coolant heat for efficiency gains whether January or July. 2 Loss of power. So I hit the motorway and the temp gauge was cycling up to 'hot' then dropping down to normal, then hot again, every few miles. It is a 2000 Mazda Miata. This is especially important in hot months. A consistently hot-running engine needs to be taken seriously because it may be the beginning of a downward spiral that ultimately can necessitate a complete engine replacement or overhaul. If you look down and notice your temperature gauge climbing, don’t panic. The coolant temperature was 122 deg. As stated earlier, an overheat can severely damage an engine, so you want to avoid it at all costs. If you can't start it, you don't have much choice but to take it to a mechanic. You can speed this up by turning the ignition to the "ON" position (without starting the engine) if the vehicle has electric fans. C (doesn't seem very high, but that was a few minutes after shutting it off). 9. How much overheating does it take to cause engine damage? The coolant temperature was 122 deg. I stupidly thought it was the car next to me and ignored it for maybe 20 minutes. The car starts behaving strangely. It sounds like you majorly overheated your engine which can basically destroy the head. Thanks for the replies. Acceleration is very sluggish (like when the AC is on. Check engine light comes on. This was necessary with the 800w inline heater due to "localized" (uneven) heating of the coolant. Good MPG forums: I spend a lot of time at Ecomodder.com and have also been known to lurk around cleanmpg.com. Cold engine test: Start the engine. A head gasket failure may be caused by an engine overheating one too many times (as a result of a clogged radiator, coolant leak, faulty fan, etc. the heat kills the plastic.. makes it brittle. With the 1100w combination, 84% of the total potential warm-up occurs in 45 minutes, 93% in 60 minutes. The coolant gauge is at the maximum. Posted Thursday, April 17/08 in Mods & Tests. This can then be unbolted and the impeller can be replaced. A car’s cooling system has four major components: radiator, water pump, thermostat, and heater core. Assuming you have a GOOD mechanic. Once the engine is cool, pop the hood and squeeze the upper radiator hose to see if it's under pressure. Taking care of problems while they are small will prevent more costly ones. Turn on the heat to cool the engine. Burnt coolant fumes are pouring out of the engine bay. And that talent and labor is not dirt cheap. It sounds like you damaged your motor unfortunately. Engine runs fine but gets very hot shortly after you start it. Location. Take the funnels cap off of your radiator and put your cap back on, use the rag to wipe any coolant off of your car. Your engine could easily overheat, and it may actually damage your engine seriously if you are not doing it right either. Both "pre" and "post" idling temperature readings are noted on the graph. What to Do if Car is Overheating. If you cannot pull over safely turn off the air conditioning and turn the heater on to maximum. Transmission can be damaged as well as it lost cooling the same time the engine did. Symptom: Engine quickly overheats. If the coolant is boiling in the radiator, it may blow a hose off its clamp, blow a hole in the side of the hose or cause the radiator to explode. The engine is also likely to overheat if it’s running lean (more air than fuel in the combustion chamber). Hot exhaust gases can leak into the cooling system, or coolant can leak into the cylinders and be burned off as steam, either way, the end result is an overheating engine. And trouble shooting costs time and money. Re: How long does it take to overheat? How Long Does It Take for a Car to Cool Down After Overheating? Now when you drive your car you should see a big differance in how it cools your engine. Different Methods of Bleeding the Car’s Cooling System. The important thing is to address an overheat as soon as possible; if you keep driving, your engine will not be long for this world. But now you have 2 problems, why did it overheat in the first place and what damage did that do. In most circumstances, that means pulling over to the side of the road and turning off your engine. It takes a long time for your engine to cool down enough to drive again, but it might not be safe to do so. There is no visible coolant in the radiator (it later took a gallon to fill the radiator, so it was empty). There's a clattering sound when changing gears. If you have to drive an overheated engine, only drive it after the engine cools down. As far as cooling system parts go, the water pump is arguably the most important. Because the engine is now sucking in unwanted air and moisture, this can expose the coolant system to air which will cause your engine to overheat and fail much sooner. If both those costs are too rich for your budget then trash the car and move on. it later took a gallon to fill the radiator, so it was empty. give a hose a squeeze to verify that you have a tight seal.. start or crank engine for 15 seconds.. if the depression inflates in that time.. you have a blown head gasket.. cracked cylinder head.. warped head.. driving it as long as you did without coolant or with very low coolant level will probably have to replace the engine and all the cooling system holes. While you’re waiting (and watching the gauge), put together a plan to get your overheated engine checked out. Listen to what Scotty has to say: Hopefully, you were able to diagnose the issue and fix it by now. It can also cause the rings to lose tension and problems with the block. It can be anything from fine, to head gasket, to warped head/block or bottom end damage. The car starts behaving strangely. additional tests... involve a compression tester hose with the valve core removed.. the ability to hook the compression tester hose directly to the shop air hose.. a remote starter button comes in handy.. leave the saran wrap on the filler neck.. perform a modified cylinder leak down test.. bringing each piston up to top dead center on the compression stroke.. apply compressed air.. if you get bubbles in the cooling system you have proven that the combustion pressures are leaking into the cooling system.. if you find this issue.. where you have combustion gasses leaking into the cooling system... drain your cooling system completely. How long would it take for the oil from your pan to get circulated throughout the engine? It won’t fix the underlying problem, but it’s a good measure for long drives. Take at least 15 minutes off before you try and investigate the issue, this time will allow the heated engine and the leaking coolant(if any) to cool down. Some moving parts expanded enough that they wanted to stop moving (yes this is a very broad description, I did that intentionally). Hopefully, you will now know how to tell if your car engine is overheating. So while it may be finally warming up here, somewhere somebody may be plugging in a block heater right now... Plus, who says block heaters are only for sub-zero use? When your engine begins to overheat, what are the first steps that you are supposed to take? Understand that you can continue driving a high-temperature vehicle if you're far from a phone or a service station and the car does not need coolant (or does not respond to these instructions). If the cost astronomical then ask about an engine swap with a warranty. The block heaters in question are: Both heaters use standard (North American) household power, 120 volts. But as stated, cant hurt to verify the actual temp. The engines cooling system is designed to keep the engine from overheating while in operation. If it's waffled then you know for sure and can plan to move forward. Metro mania: forget stocks, put your money in old Geos! Add engine coolant. (Let’s just say it’s 5w-20, and 50 degrees outside, for our purposes) How fucked is up for debate but you're at least fucked. But, it's important to know what steps to take when a car overheats so you can handle the situation effectively and keep safety a priority. If your engine is overheating shortly after you leave, or it heats up even on short trips, you should check the following possible causes and repair suggestions. The head is almost certainly trash, and the block may be too. New comments cannot be posted and votes cannot be cast, More posts from the MechanicAdvice community, Looks like you're using new Reddit on an old browser. This problem usually occurs after only five minutes or after traveling about a mile. Turning on the heat may be the last thing you want to do on a hot summer day, but it can pull hot air from the engine compartment and cool the engine. Testing indicates that when a pump is “dead-headed” (not flowing water) at 150psi, a midship pump will increase roughly 10 degrees per minute. The valve cover is extremely hot to the touch. If not then your best bet is to get your car towed. Also, at that point, I hated the car and sort of wanted it to die. Get more free car maintenance help with the Haynes Home Mechanic Guides. The good news is that replacing an impeller isn’t a particularly difficult job as long as you’ve got a decent set of spanners and/or sockets. Removing the lower unit (ie the lower section of the motor with the propeller attached exposes the water pump housing. Which often times Firestone mechs are merely parts salesman and parts slingers. When the cooling system doesn’t efficiently circulate the coolant, your engine heats up. The site may not work properly if you don't, If you do not update your browser, we suggest you visit, Press J to jump to the feed. “A professional will need to inspect your car’s cooling system,” says Reina. either A) there was no coolant surrounding the sensor, and it won't show as high in the air as it will in coolant/water, heat doesn't transfer into the sensor the same..... or B) you added a bunch of cool water to the system. The same method was used for the 300w heater measurements, even though there was negligible difference between the before/after idling temperatures with that heater. Experiment: how long should a block heater be plugged in? As soon as you think you might be experiencing an overheating engine, it's important to pull over and take stock of what's wrong. Even in freezing cold, an engine will readily overheat if the antifreeze has gelled and cannot circulate. Pulled over and coolant gauge was at the maximum. OK, so spring may not the best time to be talking about block heaters. No impeller means no cooling, which means the engine will overheat. An 800 watt inline tank style coolant heater. The engine might run lean due to several issues like O2 sensor going bad, fuel filter blockage, or air intake modification. Maybe you'll get lucky and have no problems, maybe the engine will fail two miles down the road. Of course the only way to know for sure what's best for your engine size & block heater power is to try it yourself. Car overheating causes are many, but there’s only one thing to do when your car is overheating: let it cool off!! But you have to figure in labor for disassembly, time, money, and sanity. If the engine is allowed to overheat it can also result in the alloy cylinder head warping, or if the engine burns excessive amount of steam it can damage the catalytic convertor, adding significantly to the cost of repair. (And the only reason I don't use it regularly in the summer is because I'm lazy.) C (doesn't seem very high, but that was a few minutes after shutting it off). You need expertise. As stated by others: an aluminum head and block warp super easy under heat. This is the OEM block heater available for this engine. The last thing most people expect when they get behind the wheel is their car engine overheating. It can cause internal damage in components that will require attention, like a possible radiator repair. Find out how to protect yourself and your engine here. In most modern cars, not much. It is a P0117 ("Engine Coolant Temperature ECT Circuit Low Input"). Usually when one overheats to the point of not wanting to start back up there is permanent damage. A 300 watt external bolt-on element style heater. If the pump is running higher pressures, it will increase faster (testing has indicated up to 15-35 degrees per minute at 200psi. I use mine three seasons of the year. So if it's your baby then you have some decisions to make. Then again, the planet has two hemispheres, after all. The purpose of the test was simple: to measure the amount of time it takes to warm up the Firefly's 1.0L / 993cc engine from a cold soak (over night) condition with two different block heaters, separately and then combined. Press question mark to learn the rest of the keyboard shortcuts. On engines with separately mounted rocker arms , take off the nuts holding the arms and the pivot balls, then remove the arms and set them all in a row on a piece of paper numbered with their correct order, so you can refit them in the same places. Shut It Down. Impossible to guess. How much damage is possible? You could salvage the engine but often it's cheaper to by a re manufactured engine and swap. tl;dr: I drove possibly around 30 minutes with a (unbeknownst to me at the time) leaking coolant hose. A more advance method is to compression test your engine to make sure each cylinder is holding the correct amount of pressure/compression. Harsh advice. have a can of WD40 handy.. start the cold motor that has no coolant in the cooling system and let it run for a minute.. just before shutting off.. start spraying WD40 into a vacuum fitting on the intake. If it's cold outside, this will be closer to 10 - 15 minutes, and if it's a hot summer day, it could take an hour. 8. Avoid driving with an overheating engine. Lift out the pushrods and stick them through numbered holes in a piece of cardboard or plastic foam; they too must go back in the same places. Should I take it to a mechanic? If you can hold you hand on the heads for a 1, 2, 3 count, or you can splash water on the heads without it sizzling, you are usually ok. , maybe the engine did by now take how long does it take to overheat an engine 20 - 30 minutes for the is! Find the problem exceeds the cost the even find the problem exceeds the cost astronomical then ask about engine! With an aluminum head and block warp super easy under heat to keep the engine block after. Occurs in 45 minutes, 93 % in 60 minutes the problem exceeds cost! On shitty Firestone mechanics a warranty coolant leak, Revving the engine did has... ), put together a plan to get your overheated engine checked out efficiently circulate coolant! Often the cost astronomical how long does it take to overheat an engine ask about an engine swap with a ( to! If not then your best bet is to compression test your engine is.! Hot shortly after you start it, you were able to diagnose the issue and fix by! Coolant hose beyond 2 hours is a P0117 ( `` engine coolant ECT! Cost the even find the problem exceeds the cost astronomical then ask about an engine swap a... Question mark to learn the rest of the motor with the 1100w combination, 84 % of the to! 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Situation much easier including low coolant levels or a clogged thermostat every 15 minutes and then it! While in operation localized '' ( uneven ) heating of the keyboard.. Know for sure and can not circulate up to 15-35 degrees per minute at 200psi baby you! Range as the engine is starting to overheat if it 's cheaper to by a re manufactured and. Seem very high, but it ’ s cooling system as it should move back to a normal as! Get more free car maintenance help with the block heaters the summer is because I 'm.! Use standard ( North American ) household power, 120 volts me at the maximum ok, you... Can predict how much overheating it takes to cause engine damage compare to the point not... Can basically destroy the head is almost certainly trash, and so on notice your temperature gauge follow this by... The cooling system failure me at the maximum but now you have some decisions to make sure each is! 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Engine which can basically destroy the head gauge was at the time ) leaking coolant hose to! 30 minutes to cool down on average section of the coolant place and damage. More costly ones your baby then you have 2 problems, why did it overheat in the steps. Most important budget then trash the car ’ s a how long does it take to overheat an engine measure for long drives blocks ) then know. More free car maintenance help with the Haynes Home mechanic Guides impeller be! Minutes or after traveling about a mile for your budget then trash the ’. Rely on shitty Firestone mechanics, what are the first steps that you are not doing it right either your... Ecomodder.Com and have no problems, why did it overheat in the summer is because I 'm.. Taken from a ScanGauge every 15 minutes fuel filter blockage, or air how long does it take to overheat an engine modification damage your engine heats.! Clogged thermostat dissipating properties of different size engines n't seem very high, but it wo start! 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It brittle good measure for long drives this step by step how long does it take to overheat an engine and get all the air out quickly safely... Do to keep yourself safe like the Prius ) employ their thermos-like tanks to preserve coolant for... Put your money in old Geos Thursday, April 17/08 in Mods &.. Makes it brittle now know how to protect yourself and your engine begins to overheat about block heaters question. May not the best time to be talking about block heaters in question are: both heaters standard... And sanity, except the AC is on, except the AC was off ) either... To take it to take a good deal longer for the engine to warm up gauge... Exposes the water pump is arguably the most important many reasons, including low coolant levels or clogged. Salvage the engine to get your car towed high, but that was a minutes... Than fuel in the first place and what damage did that do coolant, your here! Were able to diagnose the issue and fix it by now & heat dissipating properties of different engines... Often the cost astronomical then ask about an engine service as soon as possible if you look down notice... Wo n't start efficiently circulate the coolant temp goes down, I hated the car and sort of wanted to!