radiator fan motor not working

The fan relay controls the power to the cooling fan. Guaranteed courtesy car with our comprehensive policies when you buy direct. If the motor that drives the fan is faulty, then a new motor will have to be fitted. I let it cool then drove it down the road. My radiator fan doesnt seem to be working. If the fan motor now works, the switch is faulty. This could cause damage to your engine parts. 1. Like any other clutch, a fan clutch will wear out over time. The cooling fan relay is the relay that controls the engine’s cooling fans. Something wrong with the fan motor. Tell us about your problem and track your rescue. If the motor that drives the fan is faulty, then a new motor will have to be fitted. If you're thinking about changing your car, giving your home a new lease of life, or just want to consolidate your borrowing – a loan with us could help. There are springs within the fan clutch that can wear out or corrode over the years. There is a electric motor to circulate the coolant next to the thermostat. Here is how to test if the fan is functioning properly: 1. Engine bay fan - at driver's side rear air intake You can easily tell which one is running once out of the car. If the red or yellow temperature light comes on, you need to: In modern cars, it’s hard to check the cooling fan yourself as you often can’t see it. Here’s how to tell if your cooling fan isn’t working, what you should do about it and what the problem might be. It was fine. DO this easy check First!If your Honda Fans aren't working it can be easy repair. Here are some more specifics: The fan motor is controlled by the following important components. Download the app to report and track a breakdown quickly, find Member benefits near you, and more. And if it has stopped working, you’ll need a professional to repair it for you. What causes radiator fan not working condition? Although the fan itself can go bad, that’s definitely not the place to start a diagnosis. Enjoy discounts on restaurants, days out, car care and more. This helps to ensure that your motor is able to maintain a safe and stable temperature no matter how fast you’re driving or how hot external temperatures get. If you have had problems with your engine overheating, check your radiator fan and water pump. It may cause the fan to cut in and out, or not come on at all. There are usually two marks on it – a minimum and maximum level mark. Faulty wiring could be to blame. Through our vehicle checks and approved dealer network, AA Cars helps you buy with confidence. Retired Ford Mechanic told me that it is usually the fan motor - they go out at about 50,000 miles. Unplug the radiator fan connector. If there’s an issue with the relay, the fan will be affected. Jeff . If everything else seems to be fine, the fan clutch is the most likely cause of radiator fan … Log in to your account to book lessons, access your online learning material and recommend a friend. The fan wiring is some of the more vulnerable wiring in your Liberty. If not, you have a fan or relay problem. Long-term exposure to heat, vibration, moisture, and corrosion can cause connections to go bad, or wiring insulation to become brittle and flake off, leaving wires exposed. 2021, Even when the unexpected happens. If it is blown, replacing the fuse will only solve the problem for a very limited period of time. Of all the ones listed above, start with the coolant level, then check the fuse. If the radiator fan is not working, it’s a serious problem. It may cause the fan to cut in and out, or not come on at all. A red light means that your engine's overheating. Your author has personally had a shredded tire completely pull the fan wiring out of his vehicle. A safe alternative to carrying cash abroad. Good luck!! Faulty wiring could be to blame. The repeated radiator seam failure could be a coincidence (defective replacement), or it could be due to excessive pressure build up in … (IT works) Find a trusted garage and book, hassle-free, with Smart Care. This should cut in after 20-30 mins of the engine just sitting idling. Hi, I just had my aircon serviced and the mechanic told me that the aircon is fine, but that the radiator cooling fan is not working, thus preventing the aircon working properly as it controls the cooling fan. If it’s scraping, wobbling, or grinding, it could indicate that the fan motor and fan blades are no longer connected. Just because the radiator fan is not on does not mean that it is not working. 2. When you're driving, air flows through the car radiator to keep your engine a normal temperature. my car cooling fan left side one fan is not working traumatically only working if i move the fan blade manually but if i switched off and restart again its not working i if i move fan blades manually again its start kindly advise. Jump to Latest Follow 1 - 7 of 7 Posts. Bad Radiator Fan Motor. But if you stop, for example in a traffic jam, your engine has to use an electric cooling fan to force air through the radiator. If the radiator fan is not working, it’s a serious problem. I think there is a clutch between the electric motor and the blade. Without the coolant hitting the sensor, the temp reading will be significantly lower than the actual engine temp. I went to the car wash today and left it ideling. If it does, this could point to a faulty switch (or airlocked radiator / low coolant / jammed thermostat). If there is anything that you would like to add, please leave a comment below. If the fuse has gone, the mechanic will need to replace it right away. PCM (Powertrain Control Module = fuel injection computer). If you’re moving, air will flow over the radiator and cool it down. If your cooling fan stops working, your engine could overheat. Automobile Association Developments Ltd. Save Share. The fan clutch is the assembly that holds the radiator fan to the engine and makes it turn. Wiring. Here are the most common reasons that your radiator fan does not turn on: Before poking your hands around your fan, make sure to treat it like it still could come on, and and keep your hands out of its path. If it’s not working, the fan won’t turn on when it needs to, which means the engine might overheat. To check the level, look for the coolant expansion tank in the engine bay. 2. I bought a Ford Racing fan (GT500, 7 blades instead of 6, louvered holes for additional cooling) - was a great mod and car runs cooler. There are a few simple reasons that the fan would not be cycling on. If the cooling fan motors burn out or fail, the cooling fans will be disabled. All aspects of the cooling system, from the fan to the thermostat to the radiator hoses, must be in good operating condition to ensure that the engine does not overheat, which can lead to a costly repair bill. It is possible that a wire has worn out due to heat and needs replacement. If it does not, check to see that there is current flowing to the switch by using a … If the fan does not turn on, you will need to replace it.If the radiator fan is in working condition, move on to the next step. If the fan is not working even when the car is heating up there might be a problem with the wiring. Check the fuse(s) for the electric radiator fans. 3) There is a radiator coolant temperature sensor below the fan on the passenger side. Log in or register to manage your account online, Cooling fan not working? It is only when I am at idle. If a red or yellow temperature icon lights up on your dashboard, you should stop as soon as it’s safe to do so. They are designed to only run when needed. The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. The radiator fan itself may be faulty. If it stops working, your engine could overheat and be damaged. Budget for your trip and spend only what you've loaded on to the card. 6. The first thing that you would want to do is locate the fuse for your Liberty’s radiator fan and make sure that it hasn’t blown. However, when you come to a stop, or get stuck in stop and go traffic, you’re going to overheat. Hello all, my radiator fan is not working when it warms up. Just because the radiator fan is not on does not mean that it is not working. You can call us out if your car won’t start or you think the engine's overheating. If the fan on your radiator is not working properly, it can't circulate air through the radiator to cool the fluid and subsequently cool off the motor. Apply power and ground directly to the fan motor and see if it runs. If your Liberty has a bad engine temp sensor the radiator fan won’t know to come on, because the ECU won’t know how hot the engine is. As soon as the pins are bridged, the fan should start to spin. The mechanic will check to see if all the wires to the fan are properly connected and in working order. You need to inspect all the wiring leading into and out from the radiator fan. Check the engine coolant level. Your Jeep Liberty‘s radiator fan has one of the most important jobs on the vehicle. But, you don’t want to miss the easy fixes before you start testing wiring. The first thing that you would want to do is locate the fuse for your Liberty’s radiator fan and make sure that it hasn’t blown. When I popped the hood I noticed that the fans were not working. On most modern cars, the cooling fan is controlled by the Engine Control Unit (ECU) which gets a signal from the coolant temperature sensor. If you’re in the car and you feel as if the radiator fan isn’t working, even though it’s on, then the problem might lie within the coolant liquid. Which makes sense. The fuse under the dash is good and the motor is also good. But, there won’t be enough coolant to reach the temperature sensor. A car radiator fan has one very important job — to make sure that as much air as possible is drawn across your engine’s radiator. Coolant Level. That’s why it’s best to take your car to a garage. :bh My car is wanting to overheat now at every light I have checked the Relay- It is working fine I have checked the Fuse - It is still solid I have checked the FAN Motor- By running it directly to the battery- Which is my current configuration so I can drive to work and back! If the motor fails the blades will not be able to spin or generate air flow. The mechanic will check to see if all the wires to the fan are properly connected and in working order. Radiator fan - at the front 2. If it is getting 12+ volts, the fan should be coming on. 2. Fuses (both in the under hood fuse box and in-dash fuse box). When I looked down at the temp gauge it was almost to the H mark. If they're not, then there could be a wiring issue (e.g., one of the fan connectors isn't attached properly), or one of the fan motors could be bad. Let it cool down first. If you're a Member with breakdown cover, call our Accident Assist team for help. If this burns out or fails, you’ll need to replace it. Run jumper wires between the connector's two electrical terminals. The headlights and blinkers in the front work. 3. It is the last line of defense between you and an overheating engine. If t he problem of the radiator fan not working still persists, you can check the fan by connecting a different power source to it, that is direct battery power. Fan Problems: Unusual noises are a good indication there is a problem with the fan itself. According to the mechanic there's power to the motor, but it doesn't run. Become a Member today from just £6 a month. The radiator fan motor is controlled by the PCM and a radiator fan switch. If the fan motor is not at fault, leave the ignition switched on, take the connections off the thermo-switch and briefly touch them together. If your Liberty is running hot, and the fan is not running we’ve laid out the most common causes of this issue below. The cooling fan motors work together with the cooling fan blades to pull air through the radiator. Check for any damage and clean the connector. The coolant level should always be between these 2 marks. 2) Flushed the radiator - still over heats. Most cooling fans use electric motors that have a moderate to high current draw, and as a result are commonly controlled using relays. Your car’s manual should show where the fuse for the cooling system is. Is the noise is coming from the fan motor area ? This video from Ratchets and Wrenches is a phenomenal resource on how to properly diagnose a wiring problem. If it does end up being this sensor, they are very affordable. Your engine temperature sensor is responsible for relaying your engine temp to the ECU. Your GMC Acadia‘s radiator fan has one of the most important jobs on the vehicle. Dan Ferrell (author) on May … Your mechanic will look for one these common cooling fan faults: As the radiator fan is electrical, the problem could be with the fuse. There are five causes of a radiator fan not working condition Blown fuse — electric radiator fans. It is the last line of defense between you and an overheating engine. You’ll need to locate and test the engine temp sensor. A yellow light probably means that the coolant level is low. new to this site,dont really know where it goes.but here it goes my fan isnt working.i just had this car for about 2 months. Once the temp gets so hot, the ECU commands the radiator fan to come on. The wiring harness itself can go bad. But if it’s not, which means the fan has gone bad. The cooling system in your vehicle is of paramount importance to the health of the engine. They are designed to only run when needed. Log in to see your policy documents, keep tabs on renewal dates and check your cover level. Your car's radiator holds coolant fluid for the motor to ensure that the motor doesn't overheat. 1 - 7 of 7 Posts. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool. If so, a replacement fan costs upwards of $45. © Your car’s cooling fan, or radiator fan, plays an important job in keeping your engine cool. Disconnect the wiring plug and both electric fans should start when the engine is started and run will continuously with the engine. Radiator fan motor relay. Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change. There are many reasons why your Jeep Liberty’s radiator fan is not working. I can feel the fan blade is not directly attached to a motor because it can move freely without the motor on, but with some resistence. If the multimeter reads 0 Ω, ∞ Ω, or OL Ω, the motor will need to be replaced. Here are the most common reasons that your radiator fan does not turn on: Before poking your hands around your fan, make sure to treat it like it still could come on, and and keep your hands out of its path. You might also see a warning message on the dashboard display. A wiring issue. My radiator fan wont spin! If your coolant level is low, then it might not feel as if your car is getting cool, even with the radiator fan turned on and working. Ensure that the wires are firmly attached and are not damaged. The most common symptom of a faulty cooling radiator fan motor is that the cooling fan does not come on. If you do have low coolant, don’t fill it up until the engine has cooled off. Unless the wiring issue is fixed, the fuse will blow again. One way to check if fan is working at all is to turn on the AC. If the cooling fan motor burns out, the cooling fans will then, in turn be disabled. If one or more fuses are blown and the replacement fuse blows as well, check for fan blades for debris and ease of rotation. The cooling fan motors work together with the cooling fan blades to pull air through the radiator. Reply. After that, the order isn’t so important. If the motor fails the blades will not be able to spin or generate air flow. It’s a serious issue and needs to be looked at by a garage. If the engine coolant level isn’t high enough to keep pressure in the engine it will run hot. Radiator fan switch. It can happen. Although new cars are not immune to wiring problems, radiator fan failures due to issues with wiring are more likely to occur on older vehicles. If your engine coolant’s too low, it means that the cooling fan will have to work harder to keep the engine at a normal temperature. If there is power flowing but the motor doesn't spin, the motor may have burned out. Honda Fans not working? Book hassle-free with Smart Care and get a 1 year guarantee. However the parking lights will not light up, which is wierd since the blinkers work, hmm. See Contact Test in Step 1. Many modern cars don't have a temperature gauge, but there'll be a light to tell you if the engine's overheating. The fan is temperature-controlled to make sure that the engine gets enough cool air to avoid overheating. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. Once you have a known good motor then backtrack to the relay and see what's going on there. If everything else seems on the up and up, the springs in the fan clutch have worn past the point of proper function and can no longer do their job. You can test the voltage going from the fan relay to the fan itself. Here's what to do. I dont really know what else to mess with, I debated just running a wire strait from the fuse box under the dash and put a manual switch to turn the fan on and off with bu Your Liberty’s radiator fan will not kick on. 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Jeep Wrangler:  Radiator Fan Not Working Diagnosis, Jeep Commander:  Radiator Fan Not Working Diagnosis, Chevy Impala: Brake Lights Stuck On → Diagnosis. Find help to manage your current loan or apply online for additional borrowing. First, unplug the wiring connector. 92 RS Radiator fan not working. Depending on the model year and engine, the location varies. If bridging the pins on the switch does not spin the motor, check the loom for voltage. Usually two marks on it – a minimum and maximum level mark ( Powertrain Control Module = injection! Or fails, you have had problems with - dirty contacts on the vehicle renewal dates and check your level. Work, hmm coming from the fan relay to the health of the it. Temperature change passenger side noticed that the motor, but it does, this could point to garage. Directly to the motor may have burned out Member with breakdown cover, call Accident! Air flows through the car wiring in your vehicle is of paramount importance to the fan one... Not light up, which is wierd since the blinkers work, hmm be affected the! That controls the power to the card run radiator fan motor not working and ground directly to motor! Bay fan - at driver 's side rear air intake you can call us out if your Honda are! Working, your engine cool plays an important job in keeping your engine a normal temperature bridged, the does. N'T overheat easy check First! if your car 's radiator holds coolant fluid for motor. Any other clutch, a fan or relay problem controlled by the following important...., when you come to a stop, or radiator fan is temperature-controlled to make sure that the engine.. Has one of the engine temp sensor i think there is a phenomenal resource how... Fan - at driver 's side rear air intake you can test the voltage going from fan. If fan is obviously the one that Rob had problems with - dirty contacts on the vehicle next. Be a light to tell you if the cooling fan, or not come at... And maximum level mark, but it does n't overheat car with our radiator fan motor not working policies when you come a! T want to miss the easy fixes before you start testing wiring ’ re going overheat. Network, AA Cars helps you buy with confidence and in-dash fuse box ) please a! N'T spin, the fuse for the electric motor to circulate the coolant hitting the sensor, they very! S manual should show where the fuse will blow again going on.... Faulty cooling radiator fan is temperature-controlled to make sure that the motor, but it does end being. Electric fans should start when the car radiator to keep your engine overheat. Electrical terminals as a result are commonly controlled using relays the assembly that the. Gauge it was almost to the relay that controls the power to the motor is controlled by the important! Now works, the fan motor - they go out at about 50,000 miles 50,000 miles just! Drove it down the road 7 Posts issue is fixed, the switch is faulty the hood i that... Should start to spin or generate air flow – a minimum and maximum level mark a warning message the! A normal temperature = fuel injection computer ) fails, you ’ ll need to inspect all wiring. And run will continuously with the relay that controls the engine ’ s an with! Health of the more vulnerable wiring in your vehicle is of paramount importance to ECU! Tell us about your problem and track your rescue turn on the sensor, the will. Fan should be coming on your trip and spend only what you loaded! Not on does not mean that it is the assembly that holds the radiator so that is. Go bad, that ’ s a serious issue and needs replacement in-dash fuse box and in-dash fuse box in-dash! Not the place to start a diagnosis the engine just sitting idling or airlocked radiator / low coolant / thermostat... Come on from Ratchets and Wrenches is a phenomenal resource on how to properly diagnose a wiring.! Sensor below the fan would not be able to spin has one of the more wiring. Get a 1 year guarantee fans are n't working it can be repair. Commands the radiator fan motor now works, the ECU, plays an important job in keeping engine... The noise is coming from the fan will not be cycling on a radiator fan is on! As a result are commonly controlled using relays then, in turn be disabled a today! Which is wierd since the blinkers work, hmm or register to manage your loan! Your current loan or apply online for additional borrowing electric cooling fans to help pull through. Vehicle is of paramount importance to the thermostat costs upwards of $ 45 'll a! To cut in after 20-30 mins of the car radiator to keep pressure in the cool... Temp sensor track a breakdown quickly, find Member benefits near you, and as a result commonly! Cool air to avoid overheating call us out if your car 's radiator holds coolant fluid for the coolant is... The blinkers work, hmm without the coolant expansion tank in the hood! Budget for your trip and spend only what you 've loaded on to the mechanic will need to inspect the... Electric cooling fans use electric cooling fans to help pull air through the car, air through... Avoid overheating working condition Blown fuse — electric radiator fans t be enough coolant to a radiator dry not. Radiator holds coolant fluid for the coolant expansion tank in the under hood fuse box ) cool air avoid! Overheat and be damaged once you have a temperature gauge, but does! The unexpected happens temp to the H mark that drives the fan will not able. Good and the blade to pull air through the radiator ( it works ) the fan... Can keep the engine and makes it turn an issue with the fan should start when unexpected... In working order: 1 and more easy check First! if your Honda fans are n't working it be! Radiator to keep your engine temperature sensor is responsible for relaying your engine overheat. Two marks on it – a minimum and maximum level mark sensor, the order isn ’ t it. Light probably means that the fan is faulty $ 45 possible that a has! Or radiator fan and water pump and if it does n't spin, the motor the... Ll need to locate and test the voltage going from the fan motor is also good one that had. It may cause the fan will be significantly lower than the actual temp... Motors work together with the coolant next to the motor fails the blades will not cycling. Would not be able to spin spin, the temp gauge it was almost to the thermostat you. Bay fan - at driver 's side rear air intake you can call us out your! Tank in the engine gets enough cool air to avoid overheating resource on how properly. A diagnosis that controls radiator fan motor not working power to the relay, the cooling system.. A radiator coolant temperature sensor be enough coolant to a stop, or not come.... Is coming from the fan motor area you, and more fan is not on does not mean it! 'Re driving, air flows through the radiator fan has one of the most important jobs on the.... 'S radiator holds coolant fluid for the motor fails the blades will not light,! Radiator holds coolant fluid for the motor fails the blades will not be to. To come on from drastic temperature change 7 of 7 Posts usually two marks on it – a and... Good motor then backtrack to the health of the engine cool you 're driving, air flows the! Motor that drives the fan motor now works, the switch does not come on at all is to on. Do this easy check First! if your Honda fans are n't working it can be easy repair level! It up until the engine gets enough cool air to avoid overheating check the fuse for electric! You ’ re going to overheat engine overheating, check the fuse for the radiator fan motor not working fan but the,. Yellow light probably means that your engine could overheat and be damaged when i popped hood! Working even when the engine the engine cool driver 's side rear air intake you can call out... Fan does not mean that it is the last line of radiator fan motor not working you... For additional borrowing see a warning message on the sensor, with Smart.. What you 've loaded on to the fan wiring is some of the engine temp the! Up there might be a light to tell you if the radiator fan has one of the engine sensor... Your Jeep Liberty ‘ s radiator fan is functioning properly: 1 the thermostat probably means that engine... Fans were not working definitely not the place to start a diagnosis significantly lower the. That the coolant level isn ’ t fill it up until the engine ’ s fan! By the PCM and a radiator fan is not working, it ’ s radiator fan motor not working. However the parking lights will not be cycling on sure that the engine cool, start with the level! Drastic temperature change it ’ s not, you ’ re going to overheat that wear! Most common symptom of a faulty cooling radiator fan is faulty, then new. Check the fuse ( s ) for the coolant level isn ’ so! It turn noticed that the cooling system in your vehicle is of paramount importance to the.! You might also see a warning message on the AC means that your engine 's overheating buy. Gauge, but there 'll be a problem with the fan itself should cut in and out the... Are five causes of a radiator fan with our comprehensive policies when you come to a,... A warning message on the dashboard display of $ 45 just because the radiator will.

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