Your GMC Acadia‘s radiator fan has one of the most important jobs on the vehicle. 1. The mechanic will check to see if all the wires to the fan are properly connected and in working order. Hello all, my radiator fan is not working when it warms up. Run jumper wires between the connector's two electrical terminals. 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. Something wrong with the fan motor. Check for any damage and clean the connector. 2. If it does end up being this sensor, they are very affordable. 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. The wiring harness itself can go bad. The repeated radiator seam failure could be a coincidence (defective replacement), or it could be due to excessive pressure build up in … It may cause the fan to cut in and out, or not come on at all. When I popped the hood I noticed that the fans were not working. When I looked down at the temp gauge it was almost to the H mark. Find a trusted garage and book, hassle-free, with Smart Care. It is possible that a wire has worn out due to heat and needs replacement. This should cut in after 20-30 mins of the engine just sitting idling. If the fan is not working even when the car is heating up there might be a problem with the wiring. 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. The fan wiring is some of the more vulnerable wiring in your Liberty. A wiring issue. If your Liberty is running hot, and the fan is not running we’ve laid out the most common causes of this issue below. Your Liberty’s radiator fan will not kick on. If the fuse has gone, the mechanic will need to replace it right away. First, unplug the wiring connector. The coolant level should always be between these 2 marks. Unless the wiring issue is fixed, the fuse will blow again. If the fan motor now works, the switch is faulty. Just because the radiator fan is not on does not mean that it is not working. 2) Flushed the radiator - still over heats. Here is how to test if the fan is functioning properly: 1. It can happen. Wiring. If the motor fails the blades will not be able to spin or generate air flow. After that, the order isn’t so important. You might also see a warning message on the dashboard display. Budget for your trip and spend only what you've loaded on to the card. A safe alternative to carrying cash abroad. There are many reasons why your Jeep Liberty’s radiator fan is not working. Your car’s manual should show where the fuse for the cooling system is. 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. The radiator fan itself may be faulty. Radiator fan motor relay. 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 They are designed to only run when needed. The fan is temperature-controlled to make sure that the engine gets enough cool air to avoid overheating. 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. There are springs within the fan clutch that can wear out or corrode over the years. If the cooling fan motors burn out or fail, the cooling fans will be disabled. The mechanic will check to see if all the wires to the fan are properly connected and in working order. 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. There are five causes of a radiator fan not working condition Blown fuse — electric radiator fans. But, there won’t be enough coolant to reach the temperature sensor. 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. 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. Tell us about your problem and track your rescue. The cooling fan motors work together with the cooling fan blades to pull air through the radiator. Here’s how to tell if your cooling fan isn’t working, what you should do about it and what the problem might be. Unplug the radiator fan connector. If it is blown, replacing the fuse will only solve the problem for a very limited period of time. 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. If the multimeter reads 0 Ω, ∞ Ω, or OL Ω, the motor will need to be replaced. Depending on the model year and engine, the location varies. It is only when I am at idle. 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. Most cooling fans use electric motors that have a moderate to high current draw, and as a result are commonly controlled using relays. A yellow light probably means that the coolant level is low. The fan relay controls the power to the cooling fan. Check the engine coolant level. Faulty wiring could be to blame. 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. 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. Although the fan itself can go bad, that’s definitely not the place to start a diagnosis. If it is getting 12+ volts, the fan should be coming on. Automobile Association Developments Ltd. Once you have a known good motor then backtrack to the relay and see what's going on there. Which makes sense. 2. I went to the car wash today and left it ideling. If everything else seems to be fine, the fan clutch is the most likely cause of radiator fan … I let it cool then drove it down the road. If it does, this could point to a faulty switch (or airlocked radiator / low coolant / jammed thermostat). Guaranteed courtesy car with our comprehensive policies when you buy direct. 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. Enjoy discounts on restaurants, days out, car care and more. But if it’s not, which means the fan has gone bad. Fan Problems: Unusual noises are a good indication there is a problem with the fan itself. If it’s scraping, wobbling, or grinding, it could indicate that the fan motor and fan blades are no longer connected. Is the noise is coming from the fan motor area ? They are designed to only run when needed. Ensure that the wires are firmly attached and are not damaged. If not, you have a fan or relay problem. If a red or yellow temperature icon lights up on your dashboard, you should stop as soon as it’s safe to do so. It’s a serious issue and needs to be looked at by a garage. Disconnect the wiring plug and both electric fans should start when the engine is started and run will continuously with the engine. Let it cool down first. Faulty wiring could be to blame. If you have had problems with your engine overheating, check your radiator fan and water pump. You can call us out if your car won’t start or you think the engine's overheating. The radiator fan motor is controlled by the PCM and a radiator fan switch. Retired Ford Mechanic told me that it is usually the fan motor - they go out at about 50,000 miles. If the radiator fan is not working, it’s a serious problem. 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. Check the fuse(s) for the electric radiator fans. A red light means that your engine's overheating. Jeff . There are usually two marks on it – a minimum and maximum level mark. Many modern cars don't have a temperature gauge, but there'll be a light to tell you if the engine's overheating. That’s why it’s best to take your car to a garage. The fan clutch is the assembly that holds the radiator fan to the engine and makes it turn. You’ll need to locate and test the engine temp sensor. There is a electric motor to circulate the coolant next to the thermostat. Your car's radiator holds coolant fluid for the motor to ensure that the motor doesn't overheat. 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. If the cooling fan motor burns out, the cooling fans will then, in turn be disabled. Of all the ones listed above, start with the coolant level, then check the fuse. The most common symptom of a faulty cooling radiator fan motor is that the cooling fan does not come on. To check the level, look for the coolant expansion tank in the engine bay. Fuses (both in the under hood fuse box and in-dash fuse box). Become a Member today from just £6 a month. If bridging the pins on the switch does not spin the motor, check the loom for voltage. Save Share. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool. 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. This could cause damage to your engine parts. If it stops working, your engine could overheat and be damaged. However the parking lights will not light up, which is wierd since the blinkers work, hmm. Your Jeep Liberty‘s radiator fan has one of the most important jobs on the vehicle. See Contact Test in Step 1. Without the coolant hitting the sensor, the temp reading will be significantly lower than the actual engine temp. However, when you come to a stop, or get stuck in stop and go traffic, you’re going to overheat. 2. 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. Here are some more specifics: The fan motor is controlled by the following important components. Log in to your account to book lessons, access your online learning material and recommend a friend. 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 the last line of defense between you and an overheating engine. The fuse under the dash is good and the motor is also good. DO this easy check First!If your Honda Fans aren't working it can be easy repair. 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 it does not, check to see that there is current flowing to the switch by using a … If the engine coolant level isn’t high enough to keep pressure in the engine it will run hot. And if it has stopped working, you’ll need a professional to repair it for you. (IT works) Like any other clutch, a fan clutch will wear out over time. Reply. There are a few simple reasons that the fan would not be cycling on. 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. Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change. It is the last line of defense between you and an overheating engine. If you do have low coolant, don’t fill it up until the engine has cooled off. Bad Radiator Fan Motor. 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. Once the temp gets so hot, the ECU commands the radiator fan to come on. If there is power flowing but the motor doesn't spin, the motor may have burned out. You need to inspect all the wiring leading into and out from the radiator fan. According to the mechanic there's power to the motor, but it doesn't run. 6. It may cause the fan to cut in and out, or not come on at all. 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. Just because the radiator fan is not on does not mean that it is not working. You can test the voltage going from the fan relay to the fan itself. The cooling fan relay is the relay that controls the engine’s cooling fans. 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. As soon as the pins are bridged, the fan should start to spin. If you’re moving, air will flow over the radiator and cool it down. 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 so, a replacement fan costs upwards of $45. If one or more fuses are blown and the replacement fuse blows as well, check for fan blades for debris and ease of rotation. Here's what to do. 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. 3. If your cooling fan stops working, your engine could overheat. 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. Download the app to report and track a breakdown quickly, find Member benefits near you, and more. The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. Through our vehicle checks and approved dealer network, AA Cars helps you buy with confidence. But, you don’t want to miss the easy fixes before you start testing wiring. My radiator fan wont spin! This video from Ratchets and Wrenches is a phenomenal resource on how to properly diagnose a wiring problem.

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