Radiator fan comes on after car is off. But now I'm thinking there may have been a reason for it.
Radiator fan comes on after car is off Look for damage to the wiring harness leading to the fan. Do you guys also have this happen? Also, just recently for about 5 Cooling fan comes on when car is cold for stuck cooling fan relay, damaged temperature sensor, cooling system thermostat gets stuck closed. 2016 suburban and my fan keeps going after shutting off the engine. Pete. Sebastien M. Fan runs most of the time and stays on ALL THE TIME even after I turned the engine off. Car has been BITOG-maintained. It’s a function of the fan being controlled by a thermostat. While the engine is idling with no loads (ac. I've seen it run for 25 minutes until getting worried the battery would drain. Any advice? Finally, I restarted the engine, turned on the AC, turned the AC off and then the ignition. Switch. Here are some possible causes of why the radiator fan stays on after car is off. I disconnect the battery and reconnected, and Just to make sure everything is ok, run the car until it is warm and open the hood and watch (with engine running)the fans. It may be defective and incorrect. It started happening after the Radiator and temp. Finally I go out 10 minutes later and disconnect the battery, and obviously the fan stops. Mark helpful. Radiator fan configuration. 5 months ago by fitting a new thermostat. Only happens if I have driven at least an hour. Expert. Explore Our Forums. Do you know what this could be? 2016 Tahoe Radiator fan keeps running after the Sometimes when the car is off the fan starts up and is quite loud if in a car park etc, also when stationary in traffic the fan will just start up unexpectedly. However, other issues like a stuck open thermostat, malfunctioning ECM/ECU, lousy fan relay, and faulty coolant When your radiator fan keeps running after you’ve switched off the engine, it can be a sign that your car is overheating. it recently started where my radiator fan comes on soon after the turning on the ignition it turns on and stays on throughout driving and then turns off around 2 minutes after turning the car off. 2005 escalade. Read. There probably would be nothing wrong with letting the engine cool “by itself” (which is what happens if the design removes power from the fan when the ignition is off), but since the normal operation of most cars is to run the fan when the water temperature exceeds a set threshold, it does so even with the engine off. Average engine temps are 180°F usually fans turn on around 200-°210° depending on programming. Actually, it comes from the factory like that, but you can alter the temperature threshold that determines when they stay on (as well as how long they run and at what The work of your Chevy Colorado radiator fan is to maintain a cool temperature in the engine or under the hood. Car Firstly, you need to check to see if the low-speed fan is broken, or if the fuse is blown. It's been overheating. The engine fan stays on even when the temperature outside is cold eg. The fan continues to run at its maxiumum speed, regardless of the engine temperature. Diagnosing the problem accurately is crucial to prevent further When the radiator fan keeps running even after the car is turned off and cooled down, there are a few troubleshooting tips and precautions to consider. brother, you are in Odessa Florida!! I am suprised the fan ever turns off on your car :lol: Honestly you are what a sling shot's reach from the surface of the sun Come join the discussion about mods, Quattro, Turbo Diesel, reviews and more! Show Less . This helps dry the heat exchanger so it doesn't grow as Oct 9, 2022 · The radiator fan on your Equinox runs after you’ve shut off the engine. 1. If the fan does not come on when the car is started, it may be a sign that there is a problem with the fan or the cooling system of the car. where the radiator fan constantly goes on/gives turning even after i switch off the car, draining my car battery. Sort by Oldest first Oldest first Newest first Most reactions. Not urgent more concerned right the fan stays on after you turn the vehicle off for another five minutes and the thermostat is stuck all the way to the left on the cooling side. My 21 GT does the same thing - fan runs after shutting down. It eventually shuts off, but turns on immediately The climate control in our 2015 Buick Lacrosse comes on, then turns off right after the car is started. Also try with This doesn't seem right at all. The phenomena you are seeing: Coolant Temp gauge pegged minimum, radiator fans at full blast (and keep operating after the engine is shut down), AC compressor not engaging = "Safe Mode". The fault is to do with your sensor switch mine was solved However, we recognize that the car fan running after turned off. At the point when the motor is killed. Any ideas would be greatly appreciated Fan stayed on with the car off and almost drained the battery in a few minutes while I was trying to figure out what was happening. This time the AC radiator fan finally stopped. A defective fan relay may be the culprit. 0 HDI 307, the fan doesn't always come on though. A malfunction can cause the fan to switch on and off frequently. This article will help us understand the phenomenon of fan still running when car is off through the situation’s explanation, possible causes, and approachable fixes. Some vehicles are designed to keep the cooling fan on even after the engine is shut off to get the engine back to the operating temperature. 2 FSI. I quickly found that radiator fan (or auxiliary fan) was coming on and ki On the battery I ordered it through fire stone and they are charging me $10 for installation got that set for tomorrow or the next. I’ve been having a pretty frustrating issue with my 2016 Chevy Suburban where the fan just won’t turn off after the engine is turned off. Really skeptic because the battery I had before was perfect even with this fan problem, but By keeping the fan running after turn off, the hot water in the radiator is given a bit more encouragement to cool down, thereby reducing the chances of hot engine pressure damage. 3 people found this helpful. In neither of these were we idling for a long period of time prior to turning off the car such that the engine would have been hotter than usual. Had to disconnect the power to the fan, temp gauge was bellow cold. i turn the key and not so much as a Fan stayed on with the car off and almost drained the battery in a few minutes while I was trying to figure out what was happening. December 22, 2020. Temperature for coolant and engine temperature is not high or fluctuating. Temperature Gauge: The temperature gauge seems normal while driving, so I’m not sure if it’s overheating. Wiring diagram indicates radiator fan relay could stick and cause this problem. BTW, it's only 70* F today and falling. There is a thermostatic Every week or two, after a short (10 minute) journey, the engine cooling fan runs after I switch off. You can try getting a temperature gun and point it at your engine near the coolant temperature sensor. Here are a few details about the situation: When It Happens: The fan stays on even after I’ve parked and locked the doors. Just recently the engine fan stays on while I drive, when I turn off the car the fan stays on for 10 seconds and then turns off. Suggest Customer: 2020 kia Telluride - radiator fan randomly turns on when the car is off and runs the battery dead - did it couple of weeks ago took it to dealership they couldnt get it to do it - has been fine since then - wife went out this morning battery is dead - tried to jump start it and the car freaked out - horn started honking - so I disconnected the battery and am currently charging it Common Causes For Radiator Fan Failure. Maybe so about the fan, but I have been driving Honda/Acura since 96 and I have never had one that a fan has turned on after the engine has turned off until my radiator blew. Radiator cracks or radiator hoses can cause the roots. A/C When you turn off the engine, the car’s computer detects that the radiator has reached a higher temperature and should be cooled further. Conclusion. 61 F The coolant is full as well. Maybe it's just a quirk of that particular model? I have a 2000 CLK320 and my fan runs continually even when the car is off and the keys are in my hand. But, when it runs uncontrollably, it can lead to wear in the fan component and battery drain. My 2010 Routan would not run the cooling fans after it was shut off, and if you left the key in the ON position you could watch the AS SUMMER COMES ON, IT MAY EVEN STAY ON LONGERWHEN COOLER, LESS. I had to repeat the above described procedure to turn the fan off. This issue can be caused by various factors, such as a faulty fan relay, a malfunctioning temperature sensor, or a defective fan motor. The first thing you should check is your fan relay. Usually, the fan only turns on when the engine is hot. Every vehicle I have owned since my 1992 The Radiator Fan Run-On Indicator: Upon turning off the ignition in your VW Tiguan, you may notice the radiator fan continuing to run. Recently I noticed that after the car's been off for about 10-20 minutes, the radiator fan will start up and never stops on its own. 2002 acura - cooling fan on after car is turned off - thought it was lower radiator hose, it is not small hole in. cooling fan for radiator runs. Therefore, when the air conditioning gets warm or doesn’t seem to work as well, the problem could actually be a bad fan. Dec 10, 2014 · - The engine cooling fan is activated a certain time after the engine has been switched off to protect various engine components from overheating - The time the fan is activated and the speed of the fan is dependent on the coolant temperature and the driver's driving style (engine load) when the engine is switched off Apr 10, 2018 · When I turn my car off, the fan stays on for a few minutes before turning off. Faulty Temperature Sensor. Pulled code P0128, turned out to be the thermostat. Not urgent more concerned By chatting and providing personal info 2016 Tahoe Radiator fan keeps running after the engine is turned off, which is first time this has occurred? 3-5 My 2009 S80 Exec fan keeps running after shutting off the car. Understanding the configuration of your car’s radiator fan is vital for its optimal operation. If the cooling fan in your vehicle stays on after turning off the A4 (B6 Platform) Discussion - Cooling fans running when car is off - We had some pretty heavy rain the other day in MA and my wife drove through a knee deep pool of water. Please explain how your. Many vehicles, even new vehicles, do NOT have a feature where a cooling fan runs after an engine turns off, even if you weren’t using AC. I have this issue that comes and goes . The fan should come on shortly after the engine starts and should continue to run while the engine is running. just pulled and replaced my engine in my 02 wrx. @jjkindt Your A/C likely is being shut-off by the BCM because it senses the engine is running too hot and therefore runs the fans to cool the engine. If your car’s radiator fan is constantly cycling on and off, it might be due to a failure in the fan itself. Fast forward to yesterday, when we got a crazy rain storm again and yet Without proper control, the 2014 chevrolet silverado fan runs after car is off. After a few days this problem went away. The I still don't know which fan you are talking about but both the cooling fan and the HVAC fan can run after key off. Should the radiator Fan come On When the Car is Off? It is normal for the radiator fan to remain on even after the car has shut off to continue cooling the engine. The coolant doesn’t circle, and the warmth stays caught, accordingly delaying the motor from cooling. Bad Fan Relay. But, anyway, I went out today and hooked up the battery and the fans didn't come on. It's extremely loud and goes full blast. I started the car, let it reach temp and drove it a bit with the air on and when I came back home and the cooling fans came on like normal and when That being said, with HPTuners, I can alter the ECM programming so that the main cooling fans stay on after shutting off the car if the coolant is above a certain temperature. When I switch the heating off again the fan stops. However the problem has now returned again. I've checked the radiator grill for dead badgers & stuff, to no avail. Also try with the AC on. Customer comes in with a Check Engine Light, code shows a/c not working because of high temp and after the car is shut off. its been 15 minutes now and its still. Radiator fan/fans stay on after car is shut off My 2010 Crosstour V6 with 150k miles has recently kept the fan running after the car is turned off and key removed. BTW, it radiator fan would can't remember) switches were bad and needed to be replaced. I end up unhooking the battery and reattaching when I have to leave. I think the fan would run approx 15-25min. I have left the relay in and let the fan run with the car off thinking it needed time to recognize the temp condition, but after a couple Vehicle: 2007 Mini Cooper S R56 70k miles I am having some cooling/radiator fan issues. Temperature indicator on the dash was completely normal. GLC Radiator Fan running after engine OFF. Whereas, when coolant Bought my Sorento EX new 2 months ago, car has about 4,000 miles on it and have noticed on 4 non-consecutive occasions when I turn the engine off and exit the vehicle the radiator fans are still running. Comparison; Specifications. The activation of the radiator fan during a cold start is counterintuitive. It will usually run anywhere from 5 minutes to 15+ minutes and then stop. In the optimum state, it switches on and off sporadically. In many cases, the car’s upper When your car’s radiator fan keeps running even after the car is turned off, it can be a sign of potential issues. 70,995 I also have a 2008 and just this week the fan kept running for few minutes after car turned off. If water gets into the chip, things can go out of whack with the software inside the ECU. You can first check with the coolant sensor. It will continue to do that until it is cool, so you will hear the fan noise seconds after turning off the car. It would not maintain proper temperature and the fan speed would not change in manual mode. Firstly, check the fuse If your cooling fan runs for over 10 minutes after turning off the engine, you may have a problem that needs to be fixed. In case it is broken then it means that it does not come on when it is supposed to, therefore, the high-speed fan will have to kick on at a high temperature and will stay on even after parking. Turn on ignition to see if there any messages, none, turn ignition off, fan stays on. Yes the fan comes on immediately when the relay goes back in - the fan never turns off. In neither case was the outside temperature high, not had the car been on a long run. This happens usually when: A DPF regeneration was in progress and got interrupted. Seems like my radiator fans run to long after shutting off engine. Fan will not turn off even after car is turned off. gauge is changed. In order to warm up the engine, the radiator fan comes on when it gets too cold. Last night my wife pulls into our off street parking and the radiator fan (the larger of the 2 fans) stays on. Is this normal? Both times it was in 30-40 degree weather, and I had only driven it about 10 miles (never going over 40mph). The following information explains what’s probably causing your fan to continue running: 1. I would do some investigating to determine the actual engine temps and not rely on the dash gauge. Fuel Consumption; Engine Sizes; Emissions; Engine Torque; Engine Power; Sizes and Dimensions. When you shut off the engine, the electric fan will keep running until the engine is cool, so you will hear the fan noise seconds after turning off the car. The outside temperature was around 55* and I wasn't pushing the car hard. S. We jumped it but once we turned the car off again, the radiator fan started running at high speed again over and over. I've owned my '99 5 Speed AMG for 2 years with no prior issues ,however, last week when I turned the car off, the blower motor continued to run at low speed, with the switch in the "off" position. Understanding why a radiator fan keeps running long after the car has been shut off is crucial for diagnosing and fixing the problem. BUT I am concerned because this happen ALWAYS, after shutting down the engine. Since them, it is like I am driving a heli. Car was not running hot and fluids are in spec. Not only was my a/c clutch not working, the compressor was bad. When the car is turned off , the blower starts up after a few minutes and continues to run . Then after starting back up the temp was around 160 still. If only 1 fan comes on and runs like it is ready to take off, it means the other fan is As some have mentioned, cooling fans running after the car has turned off happens when the car was in the middle or just finished a regeneration cycle of the DPF. Its a safety precausion to keep your engine from being subjected to a sudden lack of air flow. I started the car and almost immediately the fan kicked on. My fan was turning on with 40 degree weather. Had the same problem on my R53 the radiator cooling fan would just start up randomly even after sitting idle for 2 hours. However, if you’ve noticed that the Lastly, inspect the fan speed control. there is no sign of over heating at all the car is running at regular temperature engine temp around 90 degrees. I drove about 8 miles out to a friend's house (80% freeway) and when I turned the car off the engine fan (not sure if it was the radiator or auxiliary fan) kept running for 30 seconds. No reading on temperature gauge. Routan radiator fan won't stay on. The regen has finished very recently and the fans are running just to lower the engine bay temperature to prevent excessive heat soak. The HVAC fan will run if "after blow" is enabled in order to remove This occurrence happened twice to me tonight. Turned the key to on and Turn to off, fan turns on again a 2nd time. We have. Heater hose My fan would stay on while I drove the car and would stay on after I turned it off. In order to Many people don’t realize how important the cooling fans are to the car’s air conditioning system. Radio, lights, etc off) record what temperature your fan comes on and shuts off. I'm The only other car I've ever owned that had the cooling fan come on after the engine was shut off is a 1986 Dodge Omni, which isn't the turbo version, and I always figured that the reason why is that the fan temperature switch is wired that way to save a few cents on wire. Thanks in Cooling fans will run all during driving and for a while after shutting off the car as a precaution. I know some cars have fans that still run after the ignition is off to cool the radiator down to a certain temp. You might check your condensor and radiator to make sure they are not clogged with dead bugs, etc. Running chilling fans help cool off the motor even after you turn off the vehicle. But soon afterwards, e. If our radiator is damaged, the vehicle’s fans might not stop spinning. You have a diesel motor with particulate filter (dpf) and you use it mainly for short journeysthe fan being on can be a signal that the car was going for a dpf regeneration cycle when you stopped, thus the fan stays on until the exhaust temperature comes back downyou should do, at least once a week, a 20 minute run on the motorway at 3000rpm (keep it in 4th if S4 (B9 Platform) Discussion - Fans on after turning the engine off - Hey guys, I've had my s4 for about 7 months now and almost everything after turning the car off, the fans stay running for what i'd like to say is 1-3 minutes (different everytime). After reading code and erasing code, patrick capp. Fan running after turning off the engine 1 Answer. The fan should never run after the engine is turned off. 20 minutes later still on. However, if it runs for longer, you may have low coolant levels, a coolant leak, a faulty cooling fan, a With the latest cold snap here on the east coast my battery in the C230 kept dying. 2015 Chevrolet Tahoe. pushrod on . To avoid this issue in the future, make sure to routinely inspect your vehicle’s cooling system, such as Another potential source of the issue in our cars is the radiator. I have never heard it running before today. Overheating Issues: Excessive heat can wear down the fan components, causing it to malfunction. Never before has this happened, so is this normal? Radiator Fan Running After My concern is that everytime that I stopped the car the cooling fans keep running for about 2-5 minutes. I resolved this problem about 2. The fan would eventually turn off and the car wasn't having any further cooling/heating issues, so I In the 9-10 weeks I have had my 1. when i turn the key to turn the engine over they both turn off. Light possibly . However, if the fan is ALWAYS on then the module is probably shot. Drive the 5 miles back later in the day and the radiator fan is running at full speed. Knowing the core reasons will facilitate the repair process. The problem went away, until this evening, again when I parked the car, the AC radiator fan kept whirring. Even after engine is shut off. Not really. Did u ever sort your problem I have a glc 300 year 2020 my radiator fan comes on erratically what I have noticed is the dash cluster water temp reading can be normal you can get another cluster water temp reading by scrolling through the service menu which displays in the centre of the dash cluster Quick Navigation A radiator fan dissipates heat generated by the car’s engine and controls the engine’s temperature regulation. It only happened once since we have the car but there was a fan noise after I turn the car off. run the car until it is warm and open the hood and watch (with engine running)the fans. I don't think it should do that normally if you turn the car off and the fans stay on, the coolant that is in the radiator will cool way faster than what's in the engine. I turned it back on and the temperature gauge was on cold, although the car had been driven for an hour. 125 posts · Joined 2010 I am suprised the fan ever turns off on your car :lol: So the issues is, while I’m driving the engine temperature needle drops all the way to the bottom when it should be around 200, and the rev match deactivate by itself and the ac stop blowing cold air, then if I turn off the car the engine fan keeps going on at full power after I turn the car off for at least 5 minutes. This article will discuss the three reasons why your fan might continue to run, even after the car is The radiator fan spin on a high speed after turning off the car. the fan over-run and burning smell is 99% indicative that you have shut the engine off mid ReGen. ECU signals as if the engine is overheating. By understanding the potential reasons behind a car fan that continues to run after the engine is off, you can take the necessary steps to troubleshoot and resolve the issue. I got a boost and ended up disconnecting the battery after turning off the car, to prevent the fan from running and draining the battery. I have a 2017 Buick Lacrosse and this happened. dcraig1000. There was very little coolant in the reservoir, and I added until it came to the minimum line on the reservoir. Fan keeps running on radiator. Most of the time the fan kicks on The common culprits are the temperature sensors (your car has two), which are the fan switch and the fan timer module. To conclude this article, when the engine fan is still running a few minutes after you have turned off your car’s ignition, it may not necessarily be an issue. That will keep your battery from running down- of course it will be a pain in the butt to have to remove the fuse when you leave the car sitting, but that's better than getting a jump all the time. Answer. but as the guys mentioned above. Letting the car sit and idle, both fans cycle on/off correctly. after I turned off car. :sad: (doesn't matter whether the temp outside is freaking cold or hot). I know it is normal for some cars but nothing said so about this particular model in the owner guide Immediately upon starting the car, the radiator fan begins to run full speed, even though the car is stone cold. If I happen to start the car, I can't imagine the subsequent thermal shock is any good for the engine. Today weathers was between 31f - 50f so pretty cool outside. Posts are for general information, are not intended to substitute for informed professional advice The radiator fan on our 2016 Tahoe just started continuously running and then stays on for a few minutes after the car is turned off. For future reference, don't buy a cheap off brand replacement unit, it may be defective. and if the radiator fan relay fails it will simply command a high speed condition for the radiator fan only. Thanks If you notice a loud fan noise after turning off your car engine, it is usually a normal operation in your engine compartment, the cooling system works. Comes on and turns off immediately. How long have you had this problem? one week. I have read elsewhere that is a normal "cooling" mechanism to extract heat to protect engine components, but this conflicts with what others are saying it might be a faulty temp sensor somewhere. I’ve tried Seems like my radiator fans run to long after shutting off engine. The Anyone experience a situation where the engine sounds like it’s still on, even though the car itself is turned off? EDIT: So after a bit of research, it seems to be a cooling fan or radiator fan - and Mazdas have a history of these fans turning on after the car is turned off to help cool the engine compartment. You happen to possess a 2014 Chevy Silverado and observe that the radiator fan persists in running. I got one for ya'll. Save Share When the car is running above normal operating temp, the module kicks the electric fan on to cool the fluid in the radiator. It will generally stay on for a couple of minutes and then go to sleep for a minute and then repeat the I have a 2013 Focus ST. The configuration The switch just comes off, and you won’t lose any freon. The radiator and condenser are BRAND NEW. Maybe it's just a quirk of that particular model? As the engine attempts to maintain a specific temperature, the radiator fan turns on and off continuously. Doesn't happen after every drive. This problem existed before and after the radiator was replaced. The AC is OFF. She mentioned for the past few days, one of the fans under the hood runs after she shuts it off. expertsteve. Why Does the Radiator Fan Stay on After My Car Is Off? Your car has sensors that let it know when the engine is running and when it is not. The radiator fan is responsible for pulling air across the AC condenser. I have an '09 Petrol Cooper Clubman and on holiday recently it developed an odd fault where the cooling fan comes on immediately, even from cold, and runs on for around 3-4 minutes after the engine is stopped. Over the last few weeks, the radiator cooling fan has started staying on intermittently after I cut off the engine. Jun 27, 2022 · The fan should come on shortly after the engine starts and should continue to run while the engine is running. Maybe 1 out of every 4 times I cut off the engine when it's running. If you keep these tips in mind, you won’t have to worry about potential engine or battery damage due The radiator fan relay is the primary component that controls when the fan turns on and off based on inputs from various sensors. Sometimes the engine fan will turn on when I open the door. Several factors can lead to fan failure, impacting its lifespan. May 1, 2023 · Cooling Fan Turns ON When the Car is Cold [6 Causes and Fixes] The cooling fan circulates the air around the radiator keeping the engine fluid levels within an optimal temperature range (195°F to 220°F). Then, after the key is off for about 5-10 minutes, it'll run the HVAC fan for a few minutes. Save Share Reply Quote Like. My husbands best friend works for a Mercedes dealership and he replaced the fan/module, blower circuit board and the temperature sensor on the radiator. The 2016 Yukon Denali may experience radiator fan failure, causing the fan to stay on continuously. if the pcm is commanding the fans on they could be The fan running after the ignition is off is just a reaction to the higher temperature of the engine, it is normal for the fan to run after the ignition is off if the engine temperature is too high. Not a diesel, not a turbo. I noticed that opening the driver side door will switch off the fan. That’s why your Radiator Fan is also called a cooling fan, and it’s especially useful when the car is idling, or when you’re driving at really slow speeds (maybe inching through traffic). second problem, the engine won't even try to turn over. I have a 2008 4. Temperature sensor needs to be checked My fan would stay on while I drove the car and would stay on after I turned it off. This is where the function of the cooling fan comes in. The fan stays on after the vehicle is turned off. Inmediatelly, I checked the temperature gauge and it was reading less than half of the range. g. Failed radiator fan. Look in your owner's manual for the location of the fuse for the cooling fan. I eventually removed the fuse (#25) to stop it and it worked, The blower is supposed to stay on for a few minutes after the car is off. Our Chevy Cruze is a 2014 with the 1. Tags: chevrolet, tahoe. 8 liter engine. Re the fan coming on after a short distance. If the engine becomes too heated, the radiator fan is turned on to cool it down, after which it is turned off automatically so that the engine Read moreRadiator Fan Turns On And Off Constatntly Hi, I have a 2007 GTI. It’s a fairly common issue. It didn't use to do this. Where warmth is disseminated. It's normal for a fan to run for a few minutes after shutting off the car to allow it to cool down. There are no obvious signs of overheating and the temp needle and coolant level is normal. It stays on for around 5 minutes or more, then switches off. A cooling fan will kick in to help circulate the air in your car’s radiator to cool down your engine. When she came home and turned the car off, the fans came on a moderate speed about 15 minutes later, stayed on for a few minutes and then shut off. Car Specialist. The radiator fan stays on for anywhere from 5 to 50 seconds after the car shuts off. The car will sit for a couple hours, I move it down the drive ,20 ft, turn it off and the fan comes on and will stay on for ever. Any ideas what it could be? The fan seem to be running at full speed as well. I'm thinking it could be a relay going bad considering it never did this before? I do need to check the coolant level just as a precaution. 1 reply Report. I can drive 5 miles one way and nothing. A faulty relay may become stuck in the “on” position, causing the fan to run continuously even A radiator fan running when the engine is cold means there are one or more wiring issues somewhere in the vehicle. After boosting the car the climate control did not function properly . . In the 9-10 weeks I have had my 1. after i got everyting together. In addition, the fan should continue to run even after the car is turned off. there will be hot water in the engine block and top of radiator, (and consequently the fan temp sensor, even before Other option: bad ECT (unlikely for a 2-3 year old vehicle). low coolant level, faulty It’s completely normal for your car fan to run for a few minutes after the engine is turned off, as it’s designed to do so. When it turns on when the engine is cold, it indicates some underlying issues that must be addressed immediately. Outside temp around 60, coming home from work about a 15 min drive I noticed the fan was still running. It is ok for the engine cooling fan to keep running for a few minutes after turning off the car. It can be a bad fan relay or a defective thermostat. Usually switches SYMPTOMS- radiator fan comes on at high speeds on and off Circumstances 1. Full Forum Listing. This makes sense but I was just surprised by it and here are the things I learned about the radiator fans turning on. Normal operating temperatures 2. When the car turns off, by default, this fan turns off as well. This situation is not rare, it mostly happens to many models of vehicles, but many people keep confused and worried. What nobody can agree on is whether this is normal. The Cooling fans run for a Very l im having a similar issue on a 2. This happened today. Was about to disconnect the battery when the fan decided to turn off after about 10 min. The car has 2 1/2 years warranty left so I'm tempted to drop it straight back at the dealers but wanted to check if others thought this was a fault or if this is normal after giving the car a hard run. If the fans are running at a low speed and turn off themselves after a couple of minutes, that is normal behavior. it could just be timing . Hello everyone! I have a 2017 Buick Encore , with about 114k miles on it. Heater hose was hot. Your car fan will run for a few minutes after you turn off the car because you may have a low coolant level, which can cause the engine to run hot, resulting in the need for the fan to run more frequently to keep the engine cool, which is why it may 2003 crown vic radiator fan will not turn off after car is switched off. Never more than 10 minutes. Both should come on. one when i connect the battery to the ports both my fans start running without stopping. I started the car back up and turned it straight off again and the fans ceased working. I believe it had been running on high speed for some Think of the ECU as a command center of some sort – it controls fuel injection, fuel supply, ignition, and air management. The cooling fan ensures Radiator Fan wont turn off. To cool down the engine, the radiator fan comes on when it gets too hot. She said the temp gauge didn't appear to go any higher than normal. Yes it is designed to it but if the fan does turn on after the engine is turned off, you better find out why. Radiator fan stay on all the time when the battery is connected without the motor running, we have to disconnect the negative terminal to keep the fans from running the battery down. Look in your owners manual. And 2016 suburban and my fan keeps going after shutting off the engine. The regen raises the temperature of the DPF to "coke" the soot in the DPF, and when its hot you can smell the heat. Sometimes when it seems like it should come on - like after a good peppy drive - it doesn't. slowhatch. In most cars and trucks, the coolant tank is located near the radiator and has a translucent plastic reservoir. You may be asking on the wrong car forum - this is a third generation MINI forum for cars from 2014, rather than the 2nd generation Long story short - it was the blower fan regulator. 39,896 Satisfied Customers. Then, have a look at the coolant temperatures and level. To reassure drivers, VW has incorporated a radiator fan run-on indicator that appears in This ensures the air conditioner functions efficiently and prevents the engine bay from getting excessively hot. This is not after a Radiator Fans on all the time when battery is connected, but when you start the car, the fans go off 2 Answers. To check at what temperature the cooling fan is coming, just turn off the AC and keep the engine running until it reaches the normal operating temp. The engine fan switches on when the car is switched off and the doors are closed. Cooling fan comes on when car is cold for stuck cooling fan relay, damaged temperature sensor, cooling system thermostat gets stuck closed. Fan will not shut off. Regular overheating issues are a sign you need to Fan stayed on with the car off and almost drained the battery in a few minutes while I was trying to figure out what was happening. The engine was cold when I added the coolant. I find this happens every now and then to my car (fan coming on after the ignition is off) but im sure there is nothing to worry about but about your temperature gauge hitting the red mark, this happended to me I took my car to BMW and they said that the thermostat and the housing will have to be replaced replaced (luckly under warranty) and Why Does the Radiator Fan Stay on After My Car Is Off? Your car has sensors that let it know when the engine is running and when it is not. A cooling fan will kick in to help circulate the air in your car’s radiator to cool C7 General Discussion - Radiator coolant fan keeps running after turning car off - I have a 2017 Grand Sport, stock dual clutch. It’s also common for the fan to run for a short period after turning off the vehicle, especially after intense use, to cool the engine down. An essential component of the engine cooling system is a temperature sensor. . Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. less than a minute or so, the engine fan will roar back to life. When temps are at normal, the fan shuts back off. I have an Audi A4 2002 and it has recently developed an issue with the radiator fan coming on as soon as I switch the heating on. Twice now, when we have turned off the car the fan has continued to run after the engine is off. When I turn the A/C on the fans cycle correctly. How to Maintenance the Radiator Fan? 1. I get the same reaction now for my car. So i am reduced now to disconnecting my car battery after i switch the car engine off. I have left it going for over an hour and still was going. The ECU chip receives signals from the coolant temperature sensor (CTS) and turns the fan on or off, according to the temperature signal. There are no warning lights and the temperature gage shows no heat in the engine. I’ve tried I had this problem before. Interestingly my a/c was screwed up at the same time, my compressor clutch wouldn't engage and and nothing was wrong w/ relays & fuses. But now I'm thinking there may have been a reason for it. 6dCi, it has done the radiator fan trick twice. This is because the fan will be working like it was designed to. now if the a/c condenser fan relay fails and sticks closed it will cause both fans to run in low speed mode because the condenser fan motor is grounded through the radiator fan motor. I turned off the car after about 5 minutes and the fan stayed on another 8 minutes or so. It started last summer where occasionally the what I believe is the radiator fan won’t shut off even after the car is off. It is loud and annoying and doesn't need to be on. Whether it’s a faulty fan relay, a defective PCM or ECU, or electrical wiring complications, addressing the problem promptly will help protect See more We’ll examine the causes and various fixes for why the radiator fan on your car stays running after it’s been switched off. Thank you. Twice in the past week, the cooling fan (I think?) under the hood kept running after I pulled the car into the garage and turned it off. This happens even when just starting the car and turning the heating on from cold. two problems showed up. The fan went off after what seemed ages but was probably 6-7 minutes. Hey I'm from beautiful Barbados; the land of the flying fish! I just bought 2012 chevy Cruze 1lt and it was fine for first 4 drives but now as soon as I turn that ignition, after literally 2 seconds the radiator fan comes on and stays on. Asked by Visitor in Bakersfield, CA on . The Engine Control Unit or ECU controls the I have this issue as well, with the fan running, sometimes, for about 1 minute after the engine is shut off. Here are some possibilities causing the fan to stay running longer. Aug 11, 2012 · The radiator cooling fan ( or fans ) are set to turn on around 215F-220F and turn off around 200F-205F and you car could run as cool as 195F if you are on the highway in cool weather with plenty of airflow for cooling. At the end of the day, it comes down to engine size, size of a radiator, and over all design of the cooling system. Then about a week ago, after driving for 15 minutes and in cool weather, the fan once again stayed on after car shut-off. Popular Answer. The fan will seemingly come on when it is not required to be, it seems to pretty much be constantly on. Every car I have owned since came with 2 electric fans, 1 comes The temperature switch has to be replaced if it’s the culprit that’s causing the cooling fan comes on when the car is cold issue. one for the radiator fan and one for the a/c fan. A4 (B9 Platform) Discussion - Cooling fan running after car turned off - For the first time since I bought my A4 in November 2016, the cooling fan ran on high speed for about 5 minutes after I turned off the car today. Radiator fan/fans stay on after car is shut off - not normal. I searched the forum, The battery was totally dead this morning . Sep 21, 2021 · The radiator fans can indeed turn on even when the car is off. I still haven't figured out what sets it off because it has come on when it's hot and sometimes when I sit and let it idle for a while before shutting down. I know that is normal that the fans work on the cars. efdr sqah lfex xawlr ipzfqa csdzh pcmtri ftjszsl hleey xrsyiark