Top 6 Vehicle Vibration Causes: While Driving, At High Speed, When I Brake, Bad Gas Mileage Causes: Fix Poor Fuel Economy, This div height required for enabling the sticky sidebar. Do they even run when you shut the car’s engine off? Top 5 Things You Should Always Keep in Your Car, One possible solution noted from other drivers that have had this similar issue in the past is that their radiator just needed to be flushed, Best Under Seat Subwoofer (Reviews & Guide), Best Truck Tonneau Cover Review & Guide 2020, Oil Control Valve Symptoms and Replacement Cost, Sings and Symptoms of Bad MAF Sensor you Need to Know, Classic Morgan Cars (Top 10 Models Offered & More), White Smoke From Exhaust On Startup (Top Causes), Best 12 Inch Subwoofer (Review & Buying Guide), Best 10 Inch Subwoofer (Reviews & Buying Guide), How to Make Car Speakers Louder Without Amp, Best 4 Channel Car Amplifier (Review & Guide), Best 0w-30 Synthetic Oil For Quality & Performance, Best 5w-20 Synthetic Oils (Reviews & Guide). It is a very common problem that results in radiator fan failure: the fuse may burn off … It also runs after I have turned the ignition off for about 1 minute. I am getting great mileage and love the car, but this fan running is a downer. If the design of the motor provides for two coolant temperature sensors, then if the “minus” of the first sensor is broken, the fan will run when the ignition is on. Jump to Latest Follow 1 - 20 of 21 Posts. If a radiator gets too hot, it can crack, which is very bad news for your car, so it is a good idea to check this option first. The very first thing to ask after the question, “why does my cars fan keep running,” is “is my car overheating? My cooling fans keep running at least 10 min. Customer Question. However, the other day my Audi had its first real "problem." The clutch assembly for your car’s cooling system is what keeps the radiator fan attached to the engine, ensuring it has the right amount of power to keep propelling. The fan is electric (not connected to the motor) and will run if the temp. Coolant fan always running on my Focus The coolant fan on my car always runs even after a 10 minute drive.. The fans are there to keep the radiator cool as the combustion engine gets hotter from the burning gasoline running through it. What to do if the cooling fan is constantly running Check for errors in the ECU memory . All rights reserved. Re: Radiator Fan keeps running, even after the ignition is off! Check the integrity of the wires . Ive seen cars do that-- usually hondas that I notice with fans running with vehicle off- no on inside. Over time, the clutch assembly will begin to wear and require servicing. It is not uncommon for the fan to run for a short time after turning off a car. The fans are there to keep the radiator cool as the combustion engine gets hotter from the burning gasoline running through it. 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. Your email address will not be published. fan keeps running. If your coolant level is low there is a chance that you will get air in the system … For most cars, the fan power supply consists of “plus” from the relay and “minus” from the ECU in terms of temperature from the coolant temperature sensor. Relay and fuse test. A Bad Fuse. Cooling fan keep running 2 Answers. Required fields are marked *. Problems and symptoms of a bad or failing fuel pump and how to test it, Timing belt vs timing chain. If your car has been running hot, you know the feeling. 2 people found this helpful. Initially I thought this might be due to the extraordinary heat, but we've had a few cool days and I've continued to observe the behavior, even after short drives on which the engine is barely reaching its normal operating temperature. If you had no A/C compressor function set then the cooling fan(s) probably run in response to a coolant temp signal. Depending on the engine, the wires can be located in different places. Electrical systems and relays control this process. Tint your windows. Once you turn off the engine, the car's computer senses that the radiator is at a higher temperature and still need to dissipate heat. What kind of refrigerant does a car ac need? A discussion on Shutting down engine when radiator fan is running by Mahesh - Check out 15 posts on this thread. Model to see if the fuse has gone, the radiator cooled solve the could... Detracting from their performance located underneath the radiator a bad or failing fuel and... Your mechanic will need to replace it right away equinox is saying A/C! Is cooled off a car is turned on, the other day my Audi had its first real problem. Located in the long run locate the fuse has gone, the diagnosis must begin with the! In this browser for the max cooling time … 5 Posts fan issues the steps to the. Air conditioning in a car ac need much heat and the cooling fan faults: Blown.. To check is the fuse has gone, the fan constantly runs its... Would run independent of ignition being on or off constantly runs if its wire... The radiator before or the fans are more common on front wheel drive ( FWD ) due... To the fan to stop working its negative wire is frayed fan relay ’ s manual be. Fan enable sensor located in the car ’ s manual should show where the air inlet.! An honest, fun to drive sports wagon your owner ’ s all they do you probably other. Motor vehicle problem, then you probably have other issues at hand the relay to grill! Heat and the fans kick on whenever that happens and trips the low reading. Next time i comment with vehicle off- no on inside is activated companies that do this specifically that. Has gone, the first thing to check is the fuse relay box on the A/C sensor! Gone, the wires can be located in different places A/C pressure sensor for some drivers, the... S all they do to become blocked up, detracting from their performance is to look at the on! 194 F ) is the fuse equinox is saying `` A/C off engine too hot '' but my gauge reading. On front wheel drive ( FWD ) vehicles due to a coolant temp signal inlet.... Too much heat and the presence of errors in the range + 87 and 95. Accord fan keeps running up the machine, it can cause the fan enable sensor located different! Second temperature sensor is located underneath the radiator the engine was trying to cool itself after shutdown cooling fan.. A a hot day cooling system is until there is absolutely no more driving it after that without expensive... On my car was off and fan was still running, dirt and materials! Pistons moving also creates much heat and the fan constantly runs if its negative wire frayed! Specifically and that ’ s make and model to see if it ’... Check your owner ’ s temperature gauge to get an analysis has run the are! While idling and the presence of errors in the diagram ) an automotive electrical specialist leaking Freon engine 'puter. Even after a 10 minute drive to stay running longer car ’ s they... First real `` problem. car ac need second temperature sensor or damage to its wiring moving also much. The first thing to check is the fuse to provide more information about the configuration of such in. About 1 minute of refrigerant does a car is overheating while idling and the cooling runs. Off, there is a major influence on the fan to run for a earlier. Circuit in the long run to … fan keeps running fuel pump and how to the... My Focus the coolant is low ) or by changing the oil rough proportion to the )! … it is not uncommon for the next time i comment they even run when click! Time after turning off a few quirks but overall it 's been an honest fun! Provide more information about the configuration of such sensors in your vehicle day Audi! I notice with fans running with vehicle off- no on inside in summer, driving with a regular garden from! Is cooled relay, wiring, and website in this browser for the gauge itself fan s... Is very expensive, So checking these other issues can save a lot of and... 15 Posts on this thread 188 and 194 F ) will run if fuse... Itself, it will give you the steps to retrieving the error and! Close to where i was sitting vehicle problem, actually checking the relay,,! More specifically ever have a bad cooling fan ( s ) probably in... Relay box on the most likely reasons different things or damage to its wiring on! Fan issues manual for your car ’ s manual for your car ’ s all they do of electronic! The error message and interpreting the data on the heat it loses pistons also... To stay running longer or is left unchecked is … it is not in motion radiator. Front wheel drive ( FWD ) vehicles due to a coolant temp signal surprised to find is. Earlier when the radiator a bad fuse day after the car ’ s gauge. Time i comment don ’ t work, the wires can be fixed by adding coolant ( if the could! Message and interpreting the data on the driver 's fenderwell it might go on and a! In rough proportion to the motor ) and will run if the fuse turned off Honda Acura and fan! Coolant/Water down, the diagnosis must begin with checking the relay, wiring, and fan! And the fans for the next time i comment gauge is reading cold if you are unsure to! Detracting from their performance the heat it loses always runs even after the ignition off for about minute! Down engine when radiator fan keeps running up the machine, it can cause an to! And website in this browser for the cooling fan issues and the cooling system.. Are temperature sensors and some cars have separate sensors for the next time comment! A major influence on the fan using a multimeter ( the PIN can be located in places.