Why does my car fan keep running after I Turn Off the engine?

Running cooling fans help cool down the engine even after you turn off the car. Common Causes. If your cooling fan runs for over 10 minutes after turning off the engine, you may have a problem that needs to be fixed. Here are some possibilities causing the fan to stay running longer. low coolant level, faulty coolant temperature sensor,

What should I do if my Honda Accord fan is not working?

Check if the cooling fan switch is working properly, and that there is no sign of wear or faultiness. If the cooling fan switch is not working, it is easy to replace yourself. A new one will cost you around $30. Figure 4. Diagram of Honda Accord cooling system with the location of the thermostat housing.

How to turn off auto idle stop in Honda Pilot?

It has recently come to my attention that some of the settings can be saved by using the seat position memory system. I know that it works with some of the Honda Sensing components. To test, turn-off the Auto Idle Stop, press and hold the seat memory button to program.

Why does the radiator fan run all the time?

The radiator fan may run up to five minutes and sometimes longer. Unless there is an electrical issue, it may stay on all the time until it drains the battery. When the engine is running, the coolant circulates from the engine and flows to the radiator, where heat is dissipated.

Why does my Honda Accord fan keep running?

If this happens to your Accord, you might have a problem that needs fixing. The common culprits are the temperature sensors (your car has two), which are the fan switch and the fan timer module. This article will discuss the three reasons why your fan might continue to run, even after the car is shut off.

Can a car fan still run after the engine is turned off?

Then you notice the engine cooling fan is still running even though the car is turned off. It is ok for the engine cooling fan to keep running for a few minutes after turning off the car. Your car fan will run for a few minutes after you turn off the car then turn off. This is normal in many vehicles, such as BMW or Mercedes-Benz.

When does the thermo coolant fan switch shut off?

As engine temperature rises to a specific threshold, the switch is activated powering on the coolant fan. The coolant fan will continue to run until the engine temperature cools down to a specific predetermined level. Once the temperature reaches this cooling stage, the coolant fan will shut off.

What are the signs of a bad cooling fan?

Common signs include the engine running hot and cooling fans either not functioning or running all the time. 1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.

What happens to the coolant when the engine is turned off?

When the engine is running, the coolant circulates from the engine and flows to the radiator, where heat is dissipated. When the engine is turned off, the coolant doesn’t circulate, and the heat stays trapped, therefore prolonging the engine from cooling. Running cooling fans help cool down the engine even after you turn off the car.

What causes a cooling fan relay to stop working?

Cooling fan relays can stop working for any number of reasons. Common causes for relays going bad include: There are several ways to tell if a bad cooling fan relay is to blame for an overheated engine. The easiest method is to start the engine and then turn on the air conditioning.

When does the coolant fan run in a car?

The coolant fan will run when the coolant exceeds a certain temperature irrespective of if the engine is running or not. Some vehicles even have supplementary electric water pumps set to run after engine shut down to keep coolant circulating.

Is the car cooling fan still on when the engine is turned off?

Car Fan Still On When Engine is Turned Off. You park your car, turn off the ignition and start walking away. Then you notice the engine cooling fan is still running even though the car is turned off. It is ok for the engine cooling fan to keep running for a few minutes after turning off the car.

What happens if you turn off the electric fan on a Jetta?

Electrical Fan continues running after car turned off. Draines battery. Electrical Fan continues running after car turned off. Draines battery. on Volkswagen Jetta Good news! We found 31 RepairPal Certified shops near you.

What are the symptoms of a bad cooling fan relay?

1. Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.

Is it normal for a car fan to run all the time?

This is normal in many vehicles, such as BMW or Mercedes-Benz. The radiator fan may run up to five minutes and sometimes longer. Unless there is an electrical issue, it may stay on all the time until it drains the battery. When the engine is running, the coolant circulates from the engine and flows to the radiator, where heat is dissipated.

Why does my TDI cooling fan run after shutting the engine off?

Since the vehicle does not know you are only going on a short trip, it may start this process just before you arrive at your destination and now that engine is switched off and the vehicle is stationary the system will self-activate the cooling fans at high speed in an attempt to bring down those high temperatures now trapped below the hood.

What to do when your car cooling fan comes on?

Consult your vehicle repair manual to check the required sensors and switches. On a warm engine, the fan may come on even if the engine is not running. When working on a hot engine or an engine that is running, keep your hands and tools away from the fan blades and moving components. Locate cooling fan circuit components.

What happens when you turn off the cooling fan?

At stops the engine shut off as expected. Cooling fan continued to run. When she arrived at her destination she turned the vehicle off. Cooling fan continued to run. She called me. I told her to hang around for five minutes to see if it would stop after a period of cooling down.

Is the radiator cooling fan in auto shut off mode?

Auto shut off mode was active (fuel saving mode). As some point along her 20 mile trip the radiator cooling fan came on. I thought this was odd due to the air temperature. At stops the engine shut off as expected.

Why is my air handler fan not turning off?

Air Handler Blower FAN WON’T TURN OFF! 5 Reasons Why it Keeps Running! If playback doesn’t begin shortly, try restarting your device.

Why does the fan keep running on my TDI se?

My 2013 TDI SE has 5500 miles. In the past few days the engine fan continues to run after only short trips (3 miles). The only way to shut it off is to start the engine and then turn it off. This happens after

Is it bad to have a cooling fan running?

The fan helps keep the wiring and electronic junk from holding the maximum amount of heat. It can’t hurt to have the fan run for a while unless you have an old battery, but that’s easy to fix. badbearing July 6, 2016, 1:30am #11 percolation? The fan stops cooling the radiator and the water pump quits pumping water. Yes.

What makes the radiator fan run so fast?

Two things will make your radiator fan run on fast. Either a signal that the engine is hot or that the air conditioning condenser (located in front of the radiator) is telling it that it’s hot and to run fast to cool it down.

What should I do if my fan is running at a constant high speed?

Confirm that there are no leaks at the sensor, that the air-conditioning is operating as expected and that the fan no longer runs at a constant high speed. Finally use the AssistPlus to run a Quick Test and ensure there are no new fault codes.

Why do my cooling fans stay on all the time?

Your cooling fans can stay for many reasons. Make sure your engine or transmission is not overheating using a external thermometer if you have one. Also check your Diagnostic Trouble Codes and address them and clear your Control Module.

Why are my cooling fans running at all times?

3. Cooling fans stay on at all times. If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.

Why does my radiator fan run full speed when I start the car?

Immediately upon starting the car, the radiator fan begins to run full speed, even though the car is stone cold. The AC is OFF. The radiator and condenser are BRAND NEW. This problem existed before and after the radiator was replaced. The fan continues to run at its maxiumum speed, regardless of the engine temperature.

When does the cooling fan come on in a car?

In my case, the cooling fan comes on when the engine is cold, even with the HVAC off and it will remain running at full speed when the engine is running, again with the HVAC off.

What causes a motorcycle battery to drain while running?

When a stator has gone bad, that means the motorcycle is running off of battery power alone which will quickly drain it. Batteries were not made to power the bike while it’s running, only mainly to get it started.

What should I do if my fan won’t turn off?

What you need to do is to install a V9 or V10 IME and the system will operate as it should as it relates to power off, sleep, and hibernate. I had the same problem and regressed driver to v10 and everything has been fine since. 2 weeks and no troubles.

Why does my Furnace Fan not stop running?

Well, if your furnace blower fan won’t stop running, you could have any of the following problems: 1 You’re using the wrong thermostat fan setting 2 Your fan limit switch is on “manual override” 3 There’s a shorted thermostat wire 4 There’s a shorted wire at the fan limit switch More …

How can I Stop my Fan from draining my battery?

In the short term you could just remove the fuse to the fan to stop the battery draining but keep a very close eye on the temp gauge as there is a high risk of overheating without the fan.

Why does my car make a loud fan when I accelerate?

It is possible that your engine is getting hotter than normal and is kicking the fan on harder to assist with cooling. It is likely that if the issue got any worse that a warning light may come on.

Why does my car make an awful noise when I sit at a stop light?

As the exhaust system ages, sometime the heat shields start to rust at the hold-down points and become loose. If this is your problem, the engine vibrations will cause an awful noise as you’re sitting at a stop light or as your car is idling in the driveway warming up.

What to look for when your car fan is not working?

Your vehicle should have a complete relay diagram showing the location of all of the vehicle’s electrical components such as fuses and relays. To fix any blower, the first things to look at are the fuses, relays, and electrical connections.

Why is my car AC not blowing or car fan not working?

It sounds like your blower motor or fan is damaged. The noise you heard was probably the fan blades hitting the side of your ventilation ducts and it suddenly stopped when either the motor failed or the fan finally got stuck. Replacing the blower motor and possibly fan should get you back to having AC!

What causes an electric fan to slow down and stop?

The run capacitor stores charge and delays the current momentarily, which gives the fan rotor time to turn and orient itself so that the induced magnetic force is effective. When the capacitor burns out, the electric current through the coil is too steady to generate torque, and the fan slows down and stops.

When does the HVAC fan turn on and off?

In normal operation, when your thermostat is set to “auto,” it will tell the blower fan plus the heating or cooling components to turn on and off at the same time when the desired temperature is reached. In many systems, the blower fan runs a minute or so before heating or cooling begins and ends to get air flowing.

How to turn off a computer case fan?

1 Turn off the fan via the BIOS (system setup menu). 2 Turn off the fan physically via the Motherboard. Step 1 In order to disable a case fan physically. 3 Turn off the fan using Software.

How can I Stop my CPU fan from revving up?

Surprisingly, it worked and the CPU fan stops revving up. Unfortunately, Geolocation restarted again. I tried a few times while ending the following services: Device Setup Manager, Computer Browser, Windows Update; none of it made any difference.

When do you turn on your HVAC fan?

Your HVAC fan should turn on and off with the rest of your heating and cooling system. It’s normal for the fan to kick on a couple of minutes before heating starts or to stay on for a couple of minutes after cooling stops, but your fan shouldn’t run for hours on its own.

Why is my coolant fan stuck on high?

I just joined today because I bought my first Truck. It’s an 2013 F150 Screw Lariat Ecoboost. I live in Minnesota and when I started the truck 2 days ago (25 degrees), my coolant fan turned on high right after startup. The heater/defrost and the ac were all turned off.

How long does a car cooling system fan stay on?

It’s perfectly normal to have your cooling system fan stay on after you’ve shut off the car, but it shouldn’t stay on longer than ten minutes. In some cases the fan stays on too long, which causes the battery to drain.

In the short term you could just remove the fuse to the fan to stop the battery draining but keep a very close eye on the temp gauge as there is a high risk of overheating without the fan.

What to do if your air conditioner fan won’t shut off?

Wait to see if the air conditioning unit fan eventually shuts off. If it does, the problem is not likely the thermostat. If the unit continues to run, it may be the thermostat. Remove and replace it with a new thermostat. Check the contactor relay switch.

How can I tell if my engine cooling fan is turning off?

Tap on it with a screwdriver handle, and see if the fan shuts off. http://d3nevzfk7ii3be.cloudfront.net/igi/XbD1JcNwbHgRnN4b.standard 107 people found this helpful. If you found the fan module under the hood, and the fan shut off when you tapped on the module, you will need a new module.

Why does my Pontiac Grand Prix GT fan keep blowing?

I have a 2001 Pontiac Grand Prix GT and my fan will not shut off. It will continue to blow constantly even with the car turned off. I have to unhook the battery to get it to shut down. I recently put in a new battery and it worked fine for about a day. Any ideas? :confuse: i have a 05 grand prix gt.

What was the problem with my Pontiac Grand Prix heater?

Similar Problems with 2007 Pontiac Grand Prix Heater / AC. This past summer the A/C worked but sporadically it would act like the blower was not working and shut off then come back on when it was 113 degrees outside. Then this fall it acted like no heat when I first tried the heater.

What was the problem with my 2001 Gran Prix GT?

I had the same issue with my 2001 Gran Prix GT, in my case not only the AC, blower fan and daytime driving lights and auto headlights plus my rear window defogger. It turned out to be the ignition switch. All these components work through it. Once replacing the ignition switch it solved all my problems especially the fan just working on 5.

How do you shut off a car fan?

The only way to shut it off is to start the engine and then turn it off. This happens after each trip. Today I decided to let the fan run while I put away groceries (about 5 minutes).

Why does the engine fan keep running after engine is stopped?

In the past few days the engine fan continues to run after only short trips (3 miles). The only way to shut it off is to start the engine and then turn it off. This happens after each trip. Today I decided to let the fan run while I put away groceries (about 5 minutes). I Checked and the fan was still running.

What to do if your cooling fan won’t stop running?

The fan will discharge the battery quickly if left running. Open the hood and locate the fuse relay box on the driver’s fenderwell. Remove the lid. Look on the inside of the lid and for the mapping of the fuses and relays with their location. Pull the cooling fan relay out of the box. Replace the cooling fan relay with a new one.

Why are my radiator fans all out of whack?

My radiator fans are all out off whack (simply put). They run from the time i turn the truck on to the time I shut it off. minutes and kick back on. Slow then fast then back to slow. No check engine light. No overheating. The gauge on the dash reads between 185 and 210. No effect on my truck’s performance.

When to troubleshoot an electric car cooling fan?

On a warm engine, the fan may come on even if the engine is not running. When working on a hot engine or an engine that is running, keep your hands and tools away from the fan blades and moving components. Troubleshooting a cooling fan that doesn’t work can be a relatively straightforward task at times.

Why are the cooling fans buzzing on my new diesel?

It’s cold outside; you went for only a short trip up the road, the engine is not even warm yet but when you shut the engine off and get out you notice the cooling fans buzzing away like they do on a hot summer day. This can’t be normal, right? This is a common concern with new Clean Diesel owners and rightfully so.

What to do if your cooling fan won’t turn on?

Pull the cooling fan relay out of the box. Replace the cooling fan relay with a new one. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off. The computer looses power with the key off and the same applies to the coolant temperature sensor.

When does a computer fan turn on and off?

The computer turns the cooling fan on and off when it receives a temperature indication from the coolant temperature sensor. When the temperature exceeds a specific value — usually 215 degrees Fahrenheit — the computer will turn the fan on.

How often does a car cooling fan stay on?

Cooling fans stay on at all times Average rating from 129,472 customers who received a Vehicle Engine Cooling Inspection. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.

What causes the defroster on a car to stop working?

A problem in your defrosting system can usually be traced to one of the following: 1 The cooling system 2 The heater core 3 The heater valves or blend air doors 4 The air conditioning system 5 The blower fan

What’s the best way to defrost a car?

Hot, dry air does the best job of defrosting — the heater gets it hot, and the air conditioner makes it dry. For the best results with a manual system, turn the heat up all the way, turn on the A/C, set the blower fan to maximum, and open your windows slightly.

Why is the cooling fan on my Volvo not working?

The cooling fan module is supposed to cool the car parts when they get too hot. They do this until the temperature comes down to normal levels. If your cooling fans do not stop even after the temperature has been regulated or even when the car has been switched off then it is probably faulty and needs repair.

Why is my radiator cooling fan not turning off?

2010 Volvo XC60 T6 (59K miles) – Engine cooling fan won’t shut off. The LOWER RIGHT fan is the one that won’t stop while the UPPER LEFT one has stopped. To completely shut off the fan, I disconnected the battery (+). I reconnect the battery, and the fan still runs without turning the car on.

Can a VW Jetta fan run after the engine is shut off?

Definitely hold on to the info. The fan can run after the engine shuts off, but I’ve read about failures where the fan keeps running until the battery is dead. A sticking relay or switch, can jar itself loose while driving. But if it sticks once, it will likely do it again.

Why does the radiator cooling fan not stop when vehicle is shut?

As some point along her 20 mile trip the radiator cooling fan came on. I thought this was odd due to the air temperature. At stops the engine shut off as expected. Cooling fan continued to run. When she arrived at her destination she turned the vehicle off. Cooling fan continued to run. She called me.

Why does the cooling fan come on when the engine is cold?

Every time I go to start the car after it has been sitting for an entire day and the engine is cold, when I turn the key to the “On” position, before the engine is even started, the cooling fan comes on. How is this possible when the engine isn’t even running and the engine is cold. Again, the HVAC is off.

When does the cooling fan come on or off?

I’ve read that the cooling fan will run the whole time when either the A/C is on or the vent control is set to defrost, regardless of whether the engine is cold or hot. In my case, the cooling fan comes on when the engine is cold, even with the HVAC off and it will remain running at full speed when the engine is running, again with the HVAC off.

Why does my car not stop when I Turn Off the ignition?

It turns out that the engine was not being turned off by removing the power from the Ignition Relay, it was actually being starved of fuel by the Anti Run-On Valve. Since the British models did not have the Anti Run-On Valve, the engines would not stop, but instead kept on running even when the Ignition Key was removed. What was happening?

What does it mean when your radiator fan is not working?

This is what we call a blown fuse. A blown fuse is no big deal, and changing one does not cost a lot of money. If your car’s radiator fan is non-functional, check your car’s user manual and locate the fuse for the radiator fan controller or the fan.

How long does it take for a car fan to kick off?

Usually the fan will kick off after 5 minutes or so, depending on a number of factors. If you’re using one of those hand-carried battery chargers you must always disconnect it before starting an engine unless it’s a heavy duty charger with a boost function.

What should the radiator fan be running at?

The fan continues to run at its maxiumum speed, regardless of the engine temperature. I allowed the car to run today from cold to just above 80 deg. C before sutting it off today.

Why is my laptop fan running all the time?

Clean the laptop fan If your “system cooling policy” has been changed to passive and you have not run large software and the laptop fan constantly running all the time, you may need to clean the laptop fan because the fan and heat sink are dusty and its heat dissipation performance is reduced.

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