Radiator fan running after engine turned off. I have a 2017 Buick Lacrosse and this happened.

Radiator fan running after engine turned off The main purpose of the radiator fan is to cool the engine and maintain optimal performance. problem didn't return. 6, in particular, has two water pumps: a belt-driven mechanical pump run by the engine, and an electric auxiliary pump attached to the radiator. While your fan is still running, disconnect the connector that has the yellow and yellow/white wires from the relay. To rectify the problem, it becomes imperative to replace the damaged ECU. It can be confusing if you’re not sure if this is normal. there will be hot water in the engine block and top of radiator, (and consequently the fan temp sensor, even before 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. That's the theory anyways. However, this phenomenon is not indicative of a malfunction but rather a deliberate feature designed to address specific operational needs. Aug 23, 2018 · Audi A5 / S5 / RS5 (B9) - Fan running after engine shut off - So I noticed that the cooling fan ran for a few minutes after I turned the car off today. Make sure to regularly check your vehicle’s cooling system, including its radiators and thermostat levels, to prevent this problem in the future. The dealership can replace under warranty. The thermostat is responsible for regulating the engine’s temperature, and if it’s not functioning properly, it may result in continuous fan operation. Step 1 – What's the condition of the temperature Feb 23, 2018 · Understanding the Chevy Tahoe’s Cooling System Behavior If you’ve noticed that the fan in your Chevrolet Tahoe keeps running even after you’ve turned the engine off, you’re not alone. This never happened on my BMWs, but searching on google looks like it is normal on Audis? Surprisingly it wasn't even hot today. This phenomenon is known as “heat soak. Why does my radiator fan keep running after I turn off the engine? A: The radiator fan may continue running due to a malfunctioning coolant temperature sensor, a stuck fan relay, or overheating issues. Car was ok, i. The temp gage stayed on zero (160) after a 10 mile drive. I have never had them stay on after I turn the car off. That was over a year ago. 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. If the relay is stuck or damaged, replacing radiator fan relay should solve the issue. So, check coolant level etc. Apr 9, 2018 · 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. and if the radiator fan relay fails it will simply command a high speed condition for the radiator fan only. This issue can be caused by various factors, ranging from a faulty coolant temperature sensor to a stuck fan relay. It was the first time this has happened. If the fans are running on “high” speed after the engine is turned off … it could be the same issue. I had to disconnect the battery to get the fan to shut off. If i had a pound for everytime someone told me my engine was still running after walking away from it i would be a millonaire now! Oct 29, 2020 · It's fairly common for the fan to continue to run after the engine is turned off so it continues to draw air through the radiator and over the engine. ” The duration of the fan operation depends on how hot the engine is at the time of shutdown. you run it for a minute and then turn it off and the fan runs on for a while then something is wrong. However, if it runs for an unusually long time, it could indicate a problem with the coolant temperature sensor, a faulty relay, or an issue with the engine control module. 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). This helps to dissipate residual heat and maintain optimal engine temperature. The fan may continue running after the ignition is turned off due to several factors, including the temperature of the exhaust gases, the transmission oil, and the engine coolant. I turned the car on the the acc position to see if any electronics would reset, and turned it off about 30 seconds later. In the rest of this article, I’ll explore the main reasons for your car’s radiator fan to keep running. Any thoughts? should I get it looked at for a random glitch? Dec 19, 2024 · Yes, a radiator fan can drain a car battery. Then today, same thing except she didn't notice it until she came back out to car and the battery was totally May 29, 2008 · I noticed my cooling fans didn't stop running after I shut off the car yesterday. if the pcm is commanding the fans on they could be Customer: 2017 Tahoe the radiator fan stays on when car is turned off and AC not running as well. Aug 26, 2024 · A radiator fan that keeps running after the car is turned off is often normal, especially to dissipate residual heat from the engine. The coolant circulates and flows to the radiator during engine operation, where heat is expelled. Your car’s radiator fan may keep running after you turn off the engine, probably because of the overly hot engine temperature. Q&A: 2016-2017 Ford F150 Cooling Fan Issues - Troubleshooting & Solutions May 2, 2021 · I am having the same issue with my 2016 Yukon slt. Okay thank you, ***** ***** temperature sensor is likely here. Dec 28, 2022 · Frequently, the radiator fans can run for three to five minutes. temp gauge reading normal and AC back on. Started it again to check the temp, it was at 160 degrees, just like it hadn't been running for the 30 miles I drove it to work. Dec 13, 2013 · The electric fan (as opposed to the belt-driven fan) in my Nissan Skyline Silhouette, purchased way, way back in 1986 (traded on an Astra in 2001) would run on after the engine was switched off if it felt was necessary, so having the fan in my diesel run after switch-off was not a surprise. Perfectly normal. Early this morning with the car parked all night, the fans started again and the brake lights were back on. I have a 2016 CT6 85,000 miles. When the engine is running with the CHT above 100°C (212°F), if the ignition switch is turned to the OFF position the cooling fans will continue to operate for a time which is Aug 13, 2023 · Oftentimes, your Range Rover fan will keep running due to cooling the engine, however, if the Range Rover fan keeps running and won’t shut off after 15 minutes – it is a problem you need to fix. Keep in mind the minute you turn your car off the radiator gets hotter as there is no air flow and the water pump is no longer circulating the water. I would do some investigating to determine the actual engine temps and not rely on the dash gauge. I know it is normal for a fan to run after the engine is off for further cool. Possible causes for the fan’s noise after switching the engine off include the following: Low Coolant, Faulty Coolant Temperature Sensor, Mar 16, 2022 · The sensor had failed, making the gauge read "0". Aug 20, 2024 · Common reasons for this problem include: Faulty temperature sensor: This can cause incorrect readings. The 3. 3. This article will discuss the three reasons why your fan might continue to run, even after the car is shut off. If it isn't turning off within 60-120 seconds then I would worry. How to test this it's simple. May 26, 2013 · A coolant temperature between these temperatures will cause the cooling fans to be operated at a speed which is proportional to the engine coolant temperature. Therefore, it’s okay for it to run for a few more minutes even after turning off the engine. Discussion in 'General Motoring' started by Blindpugh, Nov 14, 2022. Jan 4, 2018 · 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. This behavior can raise concerns about possible overheating, electrical issues, or may just be a normal part of the truck’s operations. Re the fan coming on after a short distance. Nov 7, 2024 · Many owners report hearing the running of a fan in a Silverado after the engine has been turned off. Lousy engine control unit Jan 8, 2022 · When I turn the truck off, the fan continues to run. Is it the ECU or the relay ? 95% of the time its the relay gets stuck. Continuous running of the radiator fan usually occurs due to a malfunction in the cooling system. Felt the hoses they were luke warm at best. Impact on vehicle performance can be significant. Allow a few minutes after you shut off the engine. I believe it had been running on high speed for some Jun 7, 2018 · Battery died yesterday, from what I see now it may have been due to the Engine cooling fan continuously running. Made a short trip today and returned the car to my garage but noted fan motor/blower continued to run even 60 minutues after engine shutdown. Here are a few details about the situation: When It Happens: The fan stays on even after I’ve parked and locked the doors. Factors include a faulty temperature sensor, a stuck relay, or a blown fuse. First time this has ever happened was tonight and it is 0 degree out here. However, if your cooling fan runs for over 10 minutes after turning off the engine, it’s essential to have a professional mechanic diagnose the issue. How can I help? Customer: Its a 2017 LaCrosse. The engine temp was 165. The ignition was off and the engine wasn't running but the cooling fans kept running. To avoid this issue in the future, make sure to routinely inspect your vehicle’s cooling system, such as checking its radiators and thermostat levels. Oct 13, 2022 · 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. I had to remove the positive battery cable to shut fan off. Temperature Gauge: The temperature gauge seems normal while driving, so I’m not sure if it’s overheating. Oct 21, 2024 · It is ok for the engine cooling fan to keep running for a few minutes after turning off the car. Modern vehicles rely on complex software systems that control various components, including the When a GMC Acadia’s fan is running after the car has been turned off, it is often a sign that the cooling system may have an issue. Already replaced the temp sensor heater works fine. It is normal for the fan to keep runnin Mar 27, 2015 · The common culprits are the temperature sensors (your car has two), which are the fan switch and the fan timer module. 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 Customer: Hi, Mechanic's Assistant: Hi there. Feb 6, 2018 · 2015 - 2020 Ford F150 - coolant fan won't shut off after engine is off - 2016 f 150 2. I started the engine and the fan kept running. Nov 14, 2022 · Radiator fan continues to run when engine turned off. in the end i restarted the engine and then shut it off again and the fan did not come again waits to be seen after next drive if this is regular occurence or a one off Sep 17, 2020 · 2015 SEL 2. The only way to stop it from continuing to run is by disconnecting it from the battery. 3. This extra heat forces the fan to do more work to cool down the engine, even if it is already off. 7. 2. Trying to diagnose the problem more so I hopefully don't have to spend an arm and a leg at the local shops, but I am just not sure on how to proceed with fixing this. Sep 4, 2023 · It will instruct the fan to either stop or continue running. Fan is once again running after shutting the car off. I replaced the coolant temp sensor and the problem is still there. After 5 min, the fan shut off. 5 Chevy Colorado was doing the samething I replaced the thermostat is still doing the samething fan stays on when engine is off ans runs full blast when truck is running and temp gauge stays at 160 . The fan stays on after the vehicle is turned off. After you turn off your vehicle, the engine continues to emit heat. Why Is My Radiator Fan Running All The Time? The radiator fan may run all the time due to issues with the thermostat or a malfunctioning fan relay. May 29, 2024 · Here are some possible reasons why the fan continues to run after the car is turned off: #1 : Post-Operation of the Fan. So, if your radiator fan runs when engine is off, you have one or more wiring issues. The fan keep running after switching off is a safety measure when the ECM cannot read the temperature it will keep the fan blowing for 10 to 15 mins after you switch off to make sure the car is not in a situation where it can cause a fire (as the ECM cannot determine if the engine is ice Dec 28, 2024 · If you own a BMW, you might have seen the cooling fan running after you turn off the engine. I make sure to keep an eye on the temp gauge, and it never gets abnormally hot. It's been running for about 15 minutes now. I wouldn't worry about it unless it runs for hours. May 31, 2019 · Could be the thermostat is stuck or the ECTS is not working. I opened the hood, checked the coolant it was good. Answer: Yes, it is normal for a radiator fan to stay on for a short period after the car is turned off, especially if the engine is hot. When the engine coolant temperature reaches 108 degrees Celsius (due to heat soak), the cooling fan will activate until the coolant temperature drops below 105 degrees Celsius. Here’s what you might experience: The fan continues running even after the vehicle has been turned off. With the potential causes and respective fixes, you can prevent possible damage to your engine. The fan will keep running until you turn off the ignition, which is normal. The ECM is not reading any valid temperature. I pulled into my garage last night, turned the car off as always and the cooling fans stayed on. Conclusion. Engine overheating: The fan may run to cool down the engine. Maybe your Ody needs some cooling system attention. If the fan remains operational even when the engine is cold, it could drain the battery. May 11, 2021 · After I turn off the car the radiator fan continues to run until the battery dies. Apr 28, 2023 · In certain cases, it is normal for a car’s radiator fan to run briefly after the engine is turned off. The system is operating as designed. The regen has finished very recently and the fans are running just to lower the engine bay temperature to prevent excessive heat soak. Jan 24, 2018 · 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. Dec 12, 2023 · For VW Tiguan owners, witnessing the radiator fan persistently running after turning off the engine can be a cause for concern. As a failsafe since it has no idea what the actual coolant temp is, the PCM commands both fans on high speed and keeps the A/C off to prevent extra heat from the condenser. Dec 2, 2023 · I just had this issue with my Daughters 2016 Suburban. Solution: Inspect the relay for signs of damage or corrosion. Figure 1. The time it takes to stop depends on how high the fan blower setting is. Customer: Engine fan running very loudly and running with engine off GMC Yukon Mechanic's Assistant: I'm sorry to hear about the loud engine fan on your GMC Yukon, but our Mechanic will be able to help you diagnose and resolve this issue. Jul 22, 2020 · When I turn the engine off on my 19 GMC Canyon V6, the fan for the AC keeps running and winds downs after about 15-20 seconds. Then yesterday the same thing happened and I disconnected the Feb 22, 2006 · Now with your problem: Fan continuosly stays on after engine shuts off. Let’s dive into this Oct 23, 2024 · 1. depressing the fan speed) - The engine cooling fan is activated a certain time after the engine has been switched off to protect various engine components from overheating Feb 5, 2022 · Fan is running when truck is off Jump to Latest 27K views 45 replies 12 participants last post by silentbravo Feb 10, 2022 In this video I explain why your radiator cooling fan keeps running and won't turn off after shutting off the engine. Believe it's the radiator fan. However, if it runs for longer, you may have low coolant levels, a coolant leak, a faulty cooling fan, a damaged radiator, or an overheated engine. Oct 9, 2022 · It could also be a fault in the fan relay that prevents the fan from getting the turn-off signal. Mar 23, 2022 · Afterwards, when I turned the engine off, the radiator fan were turning on at high speed. This issue can be puzzling and might raise concerns about your vehicle’s cooling system or potential electrical problems. The fan is designed to cool the engine and keep it running smoothly, and when it continues to run after the car has been shut off, it can be an indicator of a problem. Oct 17, 2024 · Fan does not stop running after the engine is turned off. After I re-inserted the ignition key and turned to position III the fan blower immediately shut down. If there is an internal wiring issue in the cooling fan motor, it may cause the fan to run continuously even when the engine is off. They stop when I start the engine. If your Jun 13, 2020 · If the car is hot the fan will run for 5 minutes after you turn it off to cool it down. Some vehicles also run the fan briefly after shutdown to cool the engine. This is normal behavior. Stuck relay switch: A relay that doesn’t turn off keeps the fan running. I have never heard it running before today. Went for a 4 mile drive in pure EV mode. One addition notably to be mentioned here is the thermostat remains open because the temp is above the cut off point hence water flows through the thermostat and into and out of the engine block. For example, a faulty AC compressor or condenser fan can trigger the cooling fan to operate even after the AC is turned off. Fan noise is normal for even our laptops, but it shouldn’t continue after you’ve shut down the system. There are 3 different temp ratings-75*, 85* 92* -usually just get the one now in the car. I kept hoping the fan would shut off but to no avail. 7, one of two coolant fans won't shut off after engine is off. Started it back up and shut it off a couple of times and it stayed off. . Software Glitches. You might check your condensor and radiator to make sure they are not clogged with dead bugs, etc. 1. Jun 7, 2018 · The fan should never run after the engine is turned off. Cleaned the grounds and it was fine for two days then the fans would start randomly after turning the engine off. e. If only 1 fan comes on and runs like it is ready to take off, it means the other fan is dead and needs to be replaced. No warning lights except oil change reminder, and it Dec 24, 2024 · A faulty thermostat can also lead to a radiator fan that keeps running after the engine has been turned off. (thermostat, radiator fins, coolant level, etc) Has your Ody been running hotter than normal? If that fan runs when the engine is cool, there is another Dec 15, 2011 · This occurrence happened twice to me tonight. The rationale behind this design is to ensure that the engine remains within an optimal temperature range during the critical post-operation phase when Apr 7, 2022 · Sounds like the thermostat went bad. And even when I pulled the fuse they kept running. First time it happened, wife shut off car and fan was still on. Wiring issues: Damaged wires can lead to continuous operation. I have a 2017 Buick Lacrosse and this happened. If you own a 2015 Chevy Silverado and find yourself in this situation, you’re not alone. This happens usually when: A DPF regeneration was in progress and got interrupted. All fans began running (temp gauge at zero, fans ran when vehicle was turned off and continued to run when restarted) at almost 100,000 miles. Neglecting these engine issues could lead to overheating and subsequent damage to the engine. No check engine lights are on and the truck seems to run fine. Apr 24, 2024 · Brilliant answer That is the exact purpose of the high speed fan running after the engine is turned off. Jan 16, 2018 · Introduction It’s not uncommon for Chevy Silverado owners to notice that their fans continue to run even after the engine has been turned off. Subject: Check Engine Lamp Illuminated on the DIC (Driver Information Center), Temperature Gauge Inaccurate and/or Cooling Fans Continue Running after Vehicle is Turned Off, with DTC P0128 Set Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Buick Enclave 2021 2021 LFY Cadillac XT5 2021 2021 LGX XT6 Chevrolet Blazer 2021 Mar 27, 2021 · Those conditions were were with a depleted battery where the car had been running off the engine. This hasn't happened before. After a drive, your engine can reach elevated temperatures. coolant is fullany help would be Mar 22, 2014 · 2011 Santa Fe with a problem with the fan. Let’s dig into this common situation, discuss its possible causes, and explore Mar 15, 2023 · The fan can run when the ignition is off if the engine coolant is still too hot. Dec 26, 2023 · Fan noise after the engine is turned off can be a normal occurrence, especially in modern vehicles designed to keep the fan running for some time to cool down the engine. Feb 14, 2013 · You could replace the radiator thermo fan switch. Sep 28, 2020 · C7 General Discussion - Radiator coolant fan keeps running after turning car off - I have a 2017 Grand Sport, stock dual clutch. Dash temperature gauges aren't particularly accurate for more than, "Oh crap, it's overheating!" or "It's not warmed up yet" When the radiator fan continues to run after the engine has been turned off, your automobile may be overheating. If the fan runs past five minutes, it indicates a problem with your vehicle’s system. Also try with the AC on. If the car isn't hot i. The engine coolant temperature sensor failed and this caused the ECM to default into running the fans at full speed. Feb 24, 2017 · Hello all 2007 c230 so my radiator fan started to run on high after i turned the car off but only for about 5 MIN. Jul 5, 2017 · If your fan shut itself off after a few minute, it is functioning as designed. If you've noticed that your car's radiator fan continues to run even after you've turned off the engine, you're not alone. It’s now been running for about 20 minutes. Although this might raise an alarm in the first place, there is quite a reasonable situation when it would still be normal for the fan to keep running. This typically happens when the fan continuously runs after the engine is turned off. 5. Also, the fan will do this even after short 5-10 minute trips. I’ve never had that happen in any car or truck I have owned. Mar 22, 2021 · Once, turning the engine off regardless of how hot it is, the fan will run for an additional 10-15mins. The other day I noticed my radiator fans constantly running at full blast and staying on for 5 minutes after shutdown - saw that the coolant temp gauge was pegged low. Engine never kicked on. Watch the first eight minutes of this veideo: Apr 2, 2024 · When I checked out the noise I discovered the radiator fan was running. Nov 20, 2021 · The radiator cooling fan on my 2016 GMC Yukon Denali, 117,000, runs on high after start and continues to run for a couple minutes after engine is shut off. It also runs the fans for about five minutes after the key is turned off. When she shut it down the fan kept blow really loud for about 3-5 minutes until it shut down. When the engine is shut off, the coolant does not flow, which keeps the heat trapped and delays the engine’s ability to cool. If your Chevrolet Equinox cooling fan is running several minutes after you turn off the engine, you should check the ECU, the In some vehicles such as BMW and Mercedes Benz, the engine fan is programmed to continue running for a brief period even after the engine is turned off. Clicking sound from the relay area under the hood. Sep 17, 2023 · One of the primary factors that influence how long the car fan runs after the engine is turned off is the engine’s temperature. Yes it is designed to it but if the fan does turn on after the engine is turned off, you better find out why. Nothing changed. I’ve searched what the issue was and so far have seen that it could be a thermostat, blower motor resistor or engine coolant temperature sensor. Mar 20, 2022 · If a radiator fan continually runs long after the engine is off, it’s commonly due to a faulty cooling fan relay or electronic control unit, or the radiator needs cleaning. Can I drive with the radiator fan stuck on? Dec 10, 2014 · The fan speed is controlled at 4 levels: - Run-on occurs in 3 stages (i. The outside temperature was around 55* and I wasn't pushing the car hard. If the coolant in the radiator drops down, fill it up again. 2016 Tahoe Radiator fan keeps running after the engine is turned off, which is first time this has occurred? 3-5 Daniel Chaidez Technician at Global Auto Repair 2016 Tahoe Radiator fan keeps running after the engine is turned off, which is first time this has occurred? 3-5 Daniel Chaidez Technician at Global Auto Repair My 2016 F150, the fan continues to run after turning off the engine. Sep 11, 2013 · 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. Nov 21, 2024 · In some cases, a problem with the air conditioning system can cause the fan to run continuously. One of the symptoms is if the engine May 4, 2023 · 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. Apr 7, 2022 · When I got to work yesterday, I noticed the fan running after I shut the engine off. Contact a certified electrician to diagnose your vehicle if the cooling fan comes on with the ignition. As the engine warms up, the level should start coming back up after a few minutes. Turn on the engine and let it warm up. Close the radiator cap tightly before the level overfills. Tonight the car fan did not stay on so in that sense tomorrow my car will turn on. It's never done this before, up until the last couple of weeks. I'm Dec 3, 2023 · If the fans are running at a low speed and turn off themselves after a couple of minutes, that is normal behavior. Its actions Mar 15, 2017 · After the engine is shut off, the electric cooling fan may continue to run after the engine is shut off in two different scenarios. Recent Maintenance Dec 15, 2021 · Just took delivery of 2011 XC-90 yesterday. Feb 3, 2023 · 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. Over the last few weeks, the radiator cooling fan has started staying on intermittently after I cut off the engine. The engine computer uses one coolant temperature sensor to monitor engine temps and when they are high it will turn on that fan to run at all times and will also shut the A/C down. However, its extended or constant operation may signal an underlying issue. Mar 8, 2011 · Really skeptic because the battery I had before was perfect even with this fan problem, but after a whole 2-3 weeks my battery started to be dead in the mornings after the nights that the fan stays on after the car has been shut off. I disconnected the battery so the fan wouldn't kill the battery. A/C System: Additionally, the A/C system can keep the fan running to dissipate heat from the condenser. I just went on a trip that was 2 hours each way and when I got back this happened. 6. If you take longer than 5 minutes to Mar 5, 2023 · 2015 GMC Sierra 5. Oct 25, 2008 · noticed today that my cooling fan ran on for over 3 minutes after the engine was turned off. There are some signs before this thing happens that you should watch out for. Any ideas on why the fan won't turn off?-I left it sitting for 30 min (vehicle shut off) still not off (Vehicle left on for 30) still not off, detached battery left off 9 hours (overnight) plug battery in and first thing to continue Sep 11, 2016 · 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 the traffic speed is low Oct 23, 2018 · The fans can run after the engine is off, but this usually happens only in hot weather. This is known as post-operation cooling. It eventually shuts off, but turns on immediately super loudly and stays on Mechanic's Assistant: What's the approximate mileage on your 2017 Lacrosse? Apr 10, 2018 · When I turn my car off, the fan stays on for a few minutes before turning off. May 14, 2023 · When coolant is used up, whatever's in here will fill the radiator. Whereas, when coolant temp is only 45degC extra fan running after engine off isn’t normal. You should start your investigation with a check of the coolant level. Most car owners will let their car cool down for at least 5 minutes before they turn it off. Once you turn off the ignition, the fan might continue to run to help dissipate residual heat. Maybe 1 out of every 4 times I cut off the engine when it's running. Both should come on. It’s a fairly common issue. Porsche 924S/944/968 Cooling System Miscellaneous - Page 1 Jul 31, 2013 · 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. as it would reach the 5 MIN mark it will slow down in stages. For most Volkswagens, the fan is supposed to run 2-5 minutes after the ignition has been turned off. They should run anywhere from 30secs- to a couple minutes. Knowing how the BMW N52 cooling fan works after you shut off the engine is key for keeping your car in good shape. no check engine light I disconnected the positive for 30 seconds problem came back could it be the temp sensor? The radiator fan may stay on after the car is turned off due to engine temperature regulation. I turned it back on and the temperature gauge was on cold, although the car had been driven for an hour. Faulty Fan Relay: Nov 20, 2012 · 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. The Silverado cooling fan may continue running uncontrollably in case of a defective ECU. Fast forward to this morning where the battery was fully charged. 0L Turbo 117,000 miles This has happen twice, the first time the radiator fan continued to run at high speed after the engine was turned off and ran the battery down, had to jump off. Apr 12, 2023 · When your radiator fan keeps running after you’ve switched off the engine, it can be a sign that your car is overheating. Finding a scanner that reads out engine temp would help you the most. In my experience, the fans rarely run at all except on hot days or after drag racing passes. Cooling and condenser fan in a 1996 Honda Accord DX. Nov 1, 2022 · How Long Should a Car Fan Run After The Car Is Turned Off? If the engine was hot beyond the normal operating temperature, this could be why. The BMW N52 cooling fan is important for keeping your engine cool. Dec 10, 2021 · 2017 2. Tip: Use an OBD-II scanner tool to check if any Diagnostic Trouble Code (DTC) is showing up. Sep 25, 2022 · @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. This cooling process is particularly noticeable on hot days when the engine’s temperature might actually increase after being shut off due to percolation. Aug 25, 2021 · Or open the hood and let the engine idle for a few minutes before shutdown might also cool the engine back to normal range. Cooling fans will run all during driving and for a while after shutting off the car as a precaution. My fan was turning on with 40 degree weather. Based on what I've read, the ECU will run the electric pump and fan after shutdown if the engine temperature is high enough to cause vapor lock - when the fuel in the fuel lines is hot enough to 2016 Tahoe Radiator fan keeps running after the engine is turned off, which is first time this has occurred? 3-5 Daniel Chaidez Technician at Global Auto Repair May 7, 2007 · Generally it is because the AC was just on and the engine fan stays on for 1-2 minutes after the AC is turned off even if that means for 1-2 minutes after the car turns off just to keep the evaporator core and radiator from overheating. I replaced the coolent temp sensor and it seemed to have fixed the problem for a couple months. no engine codes Mechanic's Assistant: When was the last time sensor was replaced? Customer: 2016 Tahoe Radiator fan keeps running after the engine is turned off, which is first time this has occurred? Mechanic's Assistant: It sounds concerning to have your 2016 Chevy Tahoe's radiator fan running continuously. But, when it runs uncontrollably, it can lead to wear in the fan component and battery drain. Nov 21, 2022 · Causes of Fan Noise after Engine Turned Off: Having your cooling fan running for more than 10 minutes after you turn off the engine is a common cause of these noises and indicates a potential problem. Most new cars have a thermostatically controlled electric fan, so when you pull into your garage or whereever, it stays on long enough to cool down the coolant, and thus protect the motor IF you had run it hard, AND/OR had just shut immediately after extended stop-n-go driving, AND/OR, mostly caused if the outside Jun 7, 2018 · The fan should never run after the engine is turned off. Jul 18, 2016 · On a similar note,years ago i had a Fiat X1/9 (picture of a similar one below but not actually mine),they have a very noisy cooling fan just for the carbs that kicks in even with the engine switched off when very hot. When mine did this it was the thermostat malfunctioning. They also ran for about 10 minutes after the engine was turned off. Jul 22, 2018 · Many cars allow the fan to run after the key has been removed, some cars don’t. When I reconnect the battery , all is back to normal . I occasionally hear engine cooling fans running on cars in parking lots on hot days here in Ohio after the owner has turned them off to go into a store. The fan stopped when I turned the car off. bmhx xnxnxit jwdhcnb sraf dnl tuxawl qmefs aldi jbq wzgohnz kvc gwgcw cstaq rsgh lmxaayji