The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. A stuck open thermostat can be verified by... You are right to be concerned, as this amount of time could drain the car’s battery, which would leave you having to jump-start your car. the fan fuse on the sei is behind the battery, its quite a beefy fuese. 5. How to Buy a Good Quality Heater Blower Motor Resistor, Symptoms of a Bad or Failing Cooling Fan Relay. Clicking this will make more experts see the question and we will remind you when it gets answered. The fan helps keeps the radiator cool when the vehicle is not in motion. There are two fans: 1. The sensor is usually located in the car thermostat cover. It is possible that a wire has worn out due to heat and needs replacement. I also did this at the radiator fan switch and again, the fans started working. i’ve been having an issue for a while where my radiator fan doesn’t kick on at all. Anyway my fans came on at 210 degrees!!! I’m not getting any codes for the fan, and the car hasn’t given me any indication of overheating. Also turn on the a/c, and check that the radiator fan runs at low speed, even with a cool engine. I realized that the radiator and condenser cooling fans were not coming on when needed (after a half hour of the engine running) so I pulled the relay switch and used a paper clip to "jump" it and the fans came on. Unplug the radiator fan connector. i thought it may be sticking thermostat or water pump or sensor in radiator that brings in fan. It’s normal for some vehicles to have a fan run for a few minutes... any issues that eventually arise with the fan motors. Hello! Not able to pull over and check fan as I was in traffic. The resistor does this by drawing air through the radiator and air conditioning condenser. Hi and low fuses for speed do not … The fans are either both off, both on (low speed), or both on (high speed). the fan would not cut in to cool. After replacing the relay with a Sorenson version $45. Please see our, Pontiac Grand Prix - Vehicle Engine Cooling Inspection - Indianapolis, Indiana, Kia Optima - Idle Control Valve - Seattle, Washington. I also did this at the radiator fan switch and again, the fans started working. The fan has a final stage resistor built in so it gets a pwm signal for activation and speed. An overheating engine can cause more problems especially if you let it go too long and end end up cracking your block. Fans will not come on when A/C is turned on. If it does check the fuses, the fan relay if those are okay you want to check your coolant sensor. It threw code P0600 serial communication link. Overheating Nope thats a resistor for a two speed fan, the fan has two speeds one supplied through the resistor which reduces the voltage supply and one direct. My car is still overheating because the fan is not working. Another symptom of a possible problem with the cooling or radiator fan motors is the vehicle overheating. It works when i jump the wires but only on high. The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. Q: The temperature gauge goes to the highest point. If the radiator fan is in working condition, move on to the next step. when the car is stopped or moving slowly. My car is overheating because my radiator fan doesnt start when the car overheats. They are designed to only run when needed. the radiator being flushed shouldn't have to do with the fan not working, but the fan not kicking on when you use the AC I would think would definitely cause overheating. The fan is hooked up to the radiator through a network of various wires that can become prone to corrosion over time, and the radiator can overheat if the fan isn't providing adequate air circulation when at … Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful) 4. check for any more hidden fuses around the bay Had to drive the car around for almost an hour to get it hot enough for the fans to finally come on. Could this be possible? Engine bay fan - at driver's side rear air intake You can easily tell which one is running once out of the car. Engine bay fan - at driver's side rear air intake You can easily tell which one is running once out of the car. Radiator fan not working, engine overheating, blowing cold air, but nothing leaking. well my radiator fan stop working on my 94 accord and my car started overheating after being in a traffic or long stops, a few people said that it might be my radiator fan relay, so i replaced it but it's still not working. Since I carried out the AA Test i have run my car up several times and the fans now seem to be working perfectly without any signs of overheating. If the motor fails the blades will not be able to spin or generate air flow. For this reason, if you suspect that your cooling fan motors may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic. Tester This should cut … The Fan works when I turn the AC on 2. Radiator. 3. I've replaced my fan clutch and my thermostat. Overheating, radiator fan not working, and exclamation mark sign on HUD. While While many people are familiar with the major parts in their vehicle, there are all kinds of smaller parts that play a vital role as well. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Asim Jahangir, Jun 16, 2014. 2. Coolest fans not working and it overheating once in awhile. Our certified mobile mechanics perform over 600 services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools. Symptoms of a Bad or Failing AC Fan Control Module. Of course, not all radiator fans are electrically operated, and a large percentage of vehicles use radiator fans that are driven through viscous couplings. it is not overheating at this time probaly because it is winter. Also, when I disconnect the fan and check the plug (at top of radiator) there is 12V coming from one of the 4 prongs (regardless of the temperature of the motor), so it is like the ground circut is not getting closed. No fans. Alright I have a problem. Thermostatically controlled motors do not work the fan until the engine coolant rises above normal operating temperature, and then switch off when it has cooled down again. If you continue to drive your car with low antifreeze your vehicle will eventually overheat. If the radiator fan is not working, it’s a serious problem.. Just because the radiator fan is not on does not mean that it is not working. Just an update for all you guys out there that have been trying to help me! LEARN MORE. My cooling fans are not working, I replaced my thermostat, ECT, waterpump, fans and radiator cap. I have a 53plate 350z that is my pride and joy. The problem of the radiator fan not working will cause tremendous damage to the engine and thus must receive immediate attention … problem- overheating in traffic for some time I noticed that in traffic the temperature would creep up beyond the vertical, where it normally sits at 90, no matter what style of driving. If the fans do not come on, car overheats, and fuses blow, you may need to replace the cooling/radiator fan motor. So i replaced the thermostat (thinking that i might need to change it anyway, i'm already up to 98K km) this morning but it still not working. Radiator fan not working/Overheating to max DISCLAIMER: fordownersclub.com is an independent Ford forum for owners of Ford vehicles. When I removed it my car started fine, also when I removed it the fans came on. It is the last line of defense between you and an overheating engine. The thermostat is one of those parts that many don't think about, but... Hello. 3. 2. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. 3. by the way, the ac is not blowing cold air at all. I discovered the fan relay issue after they finally got stuck on. As the engine operates the coolant temperature will continue to rise, and if there is no air moving through the radiator to cool it, it will begin to overheat. Engine overheating, however, can also be caused by a wide variety of other problems, so having the vehicle properly diagnosed is highly recommended. Usually a bad or failing cooling fan motor will display a few symptoms that can alert the driver of a potential problem that should be serviced. They will be able to look over your vehicle and replace your cooling fan motor. It threw code P0600 serial communication link. ... Why is my Buick over heating and coolant fans not working. Thermostatically controlled motors do not work the fan until the engine coolant rises above normal operating temperature, and then switch off when it has cooled down again. After not being able to find a radiator leak anywhere, and only having radiator fluid "leak" after the engine was shut off. Not exactly sure what is going on as I am not a car person what-so-ever. Hi, Im new to this so please bear with me. Hope this helps. It was cold out, so I just turned the fan off. to test the fan switch, unplug it and short out the two connections. Thus began the elimination process, I took the car to a local mechanic to get the head gasket checked which came back as okay, I have replaced the following items all with genuine Subaru parts. is ther something i can look at or do? Radiator fan not working, engine overheating, blowing cold air, but nothing leaking. Want Answer 0. Yes, of course it is. My car started overheating. If your heater is not getting warm enough and the engine is not reaching operating temperature for a long time then your engine most likely has a thermostat that is stuck open. My cooling fans are not working, I replaced my thermostat, ECT, waterpump, fans and radiator cap. Radiator fans not working and car NOT overheating??? I'm a beginner mechanic and I'm so stumped. - there are two fans: radiator and A/C - when A/C off, radiator fan does not turn on automatically - when A/C is turned on, both fans turn on and off at the same time automatically - engine temperature gauge shows close to overheating (assumed to be correct as temperature gauge appears working when car is warming up) The cooling fan motors are an important component to any cooling fan assembly, and play a key role in keeping the car at safe temperatures during idle and low speeds. Overheating The possibilities are (from my research online): 1. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Asim Jahangir, Jun 16, 2014. If the radiator fan is not working, it’s a serious problem. i have changed the the temp sensor and the coolent temp switch on the bottem left of the radiator with in the last week. Radiator fan - at the front 2. What really matters is the temperature of the lower radiator hose. Seeing as the sun was shining at the weekend I decided to get my zed out from under its cover where its been hiding all winter and get him prepped for the summer. Overheating, not sure if fan is blowing 5 Answers. Working as part of the engine cooling system alongside coolant, a radiator fan blows cool air through the radiator as a means of heat transfer to prevent the engine from overheating. The compressor is a pump for the A/C system and when it gets weak, it does not pump as well as it should. He changed the relays along with putting a new fan in. Radiator fans not working. The temperature sensor determines when the radiator fan comes on by reading the cooling system temperature. The fuse will have to be replaced to restore possible functionality to the fans. © 2001-2021 Audizine, Audizine.com, and Driverzines.com. Working as part of the engine cooling system alongside coolant, a radiator fan blows cool air through the radiator as a means of heat transfer to prevent the engine from overheating. If you’re leaking antifreeze but not overheating or you have a car leaking antifreeze when parked, you still have a chance to repair your vehicle for a lower cost. My car is still overheating because the fan is not working. My car started overheating. 1. Not sure whether the test has reset something or kickstarted them into working but all is good in the hood! My car started overheating yesterday morning. the fan should spin. The first thing to do if you think your radiator fan is not working is to do a visual check. The The purpose of the cooling fan resistor is to remove heat from the engine’s coolant and from the A/C refrigerant. Thermostat (but would this cause the fans and AC not to spin?) Just because the radiator fan is not on does not mean that it is not working. Solved!!! The most popular service booked by readers of this article is Vehicle Engine Cooling Inspection. To ensure optimal performance and lifespan, your engine must not overheat. It’s not the radiator. 2006 honda crv, the fan is not working and the car go overheating, but it's cool when i start tje a/c. The leak could be due to the reservoir overfilling due to over expansion from heat. Fast, free online quotes for your car repair. Connect a 12 Volt power source directly to the fan and see if the fan comes on. Please, help! YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. Made with ♥ in Silicon Valley. You need to inspect all the wiring leading into and out from the radiator fan. The material contained in the forums is submitted by the general public and is NOT endorsed by Ford Motor Company Ltd. I'm a beginner mechanic and I'm so stumped. the cooling fan will come on only when the ac is turned on. Help! YourMechanic All rights reserved. otherwise the fan doesn't kick on when car reaches high temperature. I have a 1995 BMW 520i. the fan would not cut in to cool. See Contact Test in Step 1. Bottom line: Fans are NOT coming on at any time...hot or cold...even when I turn the A/C on the fans do not come on. Took it to the mechanic and he replaced my radiator fan. Electric radiator-fan motors are switched on either by the ignition switch - and run while the engine is working - or by a thermostatic switch. The radiator fans simply stopped working. If the AC fans don't work when the car is on, the fan relay may be bad. Since you saw one running and one not, the one not running has a wiring problem or the motor is dead. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. My problems started with overheating and what I thought was a radiator leak. The fan control duty cycle activation is triggered after loading the fan speed and engine speed parameters. it is not overheating at this time probaly because it is winter. Not in front of radiator, not in air intake, not near fuse box, not behind headlight. It's been overheating for the last couple weeks now. A blown cooling fan circuit fuse is another symptom of a potential problem with the cooling fan motors. Radiator fan not working To whom it may concern my 2001 mazda mpv van radiator fan is not working the mechnic i took it too seem to think its electrical but not sure? - Answered by a verified Mechanic for Honda It did not seem to be losing any coolant. The one I removed was the radiator fan Hi Relay, I planned on replacing it but when I plugged the new one in my car wouldn’t start after 10 minutes of driving. He seems to think there is something wrong with the computer that is keeping it from turning on. Then after removing the back head to replace the head gasket, I finally found the REAL problem. Have you checked the bulbs? This should cut in after 20-30 mins of the engine just sitting idling. Get a fair & transparent quote instantly before booking. I was driving last night (2002 Jetta GL, 2.0 Liter) on the freeway when I noticed my heat suddenly cut out. Repairs covered by 12-month/12,000-mile warranty. document.write(new Date().getFullYear()) Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. About 31 degrees out right now. So i replaced the hose, but noticed that my radiator fans don't work unless the A/c is turned on. Radiator fan - at the front 2. It sounds like you may have a weak compressor. The fan will usually store a fault in the dme for activation or ihka system faulted for excess pressure (because fan is not coming on). Please, help! If the cooling fan motors fail, and disable the fans, the engine temperature will continue to climb until the engine overheats. Radiator. i thought it may be sticking thermostat or water pump or sensor in radiator that brings in fan. My 08 2.0 S Line (appearance) was in an accident so I swapped out the core support, radiator, ac condenser, fan shroud, bumper and hood from a donor 06’ 2.0 parts car. The cooling fans are thermostatic and are designed to come on once a certain temperature is reached, or certain conditions are met. © Viscous radiator fans explained. Your Toyota Camry‘s radiator fan has one of the most important jobs on the vehicle. If the fan does not turn on, you will need to replace it. Radiator fan not working To whom it may concern my 2001 mazda mpv van radiator fan is not working the mechnic i took it too seem to think its electrical but not sure? Fan can be checked with many of the scan tool programs. overheating light comes on when in traffic, fine when driving. When I checked the code on my scanner tool it mentioned code p1491 Radiator Fan Relay Circuit. He changed the relays along with putting a new fan in. When the AC is powered On it takes over the control of the radiator fan motor to help cool down the water inside the radiator especially if the car is not moving while the engine is running.. My cooling fan in front of my radiator does not work. If the cooling fan motors fail, and disable the fans, the engine temperature will continue to climb until the engine overheats. Coolant air bubble Any advice welcomed and ideas for testing and eliminating. Alright I have a problem. Check power and ground at the fan connector. Help! although if the fan isn't very free spinning, chances are its knackered. The cooling fan motors work together with the cooling fan blades to pull air through the radiator. Maybe the sensor you had bought new when you first got the car is malfunctioning. Thus began the elimination process, I took the car to a local mechanic to get the head gasket checked which came back as okay, I have replaced the following items all with genuine Subaru parts. Polo Overheating/Fans not coming on Post by Millenios » Tue Jun 28, 2016 12:44 pm 1.2 2004 Polo 58k started to overheat on the motorway, so pulled over to let the car cool down & it was fine after so I assumed a sticking thermostat which I have replaced. The club is not part of Ford nor affiliated with or endorsed by Ford in any way. The statements expressed above are only for informational purposes and should be independently verified. My 2510 was having the same overheating issues, no radiator fan and the temp light coming on after about 5 minutes. Both fans are related to the engine/radiator/AC system, the AC condenser is right in front of the radiator. If the fan is not working even when the car is heating up there might be a problem with the wiring. is ther something i can look at or do? New radiator thermostat I do not think my radiator fan is working. If the radiator fan is not working correctly, your car can get damaged, and if you let it go too long without a repair, the fix can be thousands of dollars out of your pocket. I know that it should go on once in a while when the cars temp is up there. Figure 3. If it were, the engine would run hot when idling or driving at slow. I would have him back again to work on my vehicle. The cooling fans are thermostatic and are designed to come on once a certain temperature is reached, or certain conditions are met. Note that the only thing different about the 06’ parts car is that the 06 bumper came with an integrated homelink module so there’s an extra plug in the bumper. My car was overheating so I replaced the head gasket since it needed one anyways, but it is still overheating. The radiator fans simply stopped working. If the sensor isn’t working, your fan won’t come on because it won’t know that the temperature is hot enough to require activation, which can frequently lead to overheating. Radiator fans not working . The cooling fans are mounted on the radiator and work to pull air through the radiator fans to keep the engine cool, especially during idle and low speeds, where air flow through the radiator is significantly less than at road speeds. Question about car overheating, Automotive, 35 replies Radiator fans won't stop working - 2001 Chysler Town and Country, Chrysler, Dodge, Jeep, and Ram, 10 replies I can't explain the overheating., Automotive, 25 replies so frustrated with this overheating, Automotive, 36 replies Neon '01 overheating, Automotive, 13 replies Radiator fan testing points. Q: Fan not working and car overheating. Radiator cooling fan not working, code p149. The cooling fans on Chrysler cars are not particularly well-made, but that doesn't mean you can assume that they are broken the second the cooling system stops working. as custard said - test it by running power directly too it. Virtually all late model vehicles and the vast majority of road going vehicles use radiator cooling fans with electric motors to keep the engine cool. If the motors fail or surge, they may cause the fuse to blow in order to protect the rest of the system from any sort of damage due to electrical surges. To perform a visual check, you will simply open the hood while the vehicle is running and listen for the fan closely. 30% and 40% often will not cause any speed increase for fan but when you get to 80 or 90% it will come on and then decreasing duty cycle may see speed drop but still work. N54 Radiator fan not working So I have a 2007 BMW 335i N54. Here is what I found so far: 1. Posted by Chris Osteen on Aug 23, 2013. The primary purpose of the radiator fan is to prevent the engine from overheating when there’s not enough airflow, ie. Nissan Frontier - Car is not starting - Dacula, Georgia, Mercury Grand Marquis - Intake Manifold Gaskets - Gwynn Oak, Maryland. Typical thermostat operating temperature is 80C to 95C, fan start point is typically 90C to 105C. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. The fan should have been on @ 100% during an overheat situation. The problem of the radiator fan not working will cause tremendous damage to the engine and thus must receive immediate attention when it arises. Another symptom of a possible problem with the cooling or radiator fan motors is the vehicle overheating. AC condenser fans need to be replaced when the air conditioning stops running. As they are the component that rotates the fan blades and creates the air flow, any issues that eventually arise with the fan motors can quickly develop into other problems. A radiator fan is imperative in keeping the temperature of the coolant low enough. MARTIAL09 MEMBER; 1998 CHRYSLER TOWN AND COUNTRY; 3.8L; 6 CYL; 4WD; AUTOMATIC; 176,048 MILES; Hello, I have just recently had an overheating issue with my van sitting on idle. 5. Coolant air bubble Any advice welcomed and ideas for testing and eliminating. Your Chevy Silverado‘s radiator fan has one of the most important jobs on the vehicle.It is the last line of defense between you and an overheating engine. I realized that the radiator and condenser cooling fans were not coming on when needed (after a half hour of the engine running) so I pulled the relay switch and used a paper clip to "jump" it and the fans came on. Electric radiator-fan motors are switched on either by the ignition switch - and run while the engine is working - or by a thermostatic switch. Noe was polite, kind, and professional. the second way the ac would work is only if i disconnect the temperature sensor. Run jumper wires between the connector's two electrical terminals. It did not seem to be losing any coolant. If the cooling fan motors burn out or fail, the cooling fans will be disabled. My car is not overheating since I … How Long Does a Cooling Fan Resistor Last? I've researched it and apparently i need a new resistor. i have changed the fuse box on top of the battery and the fans control relay about 1 year ago. Re: Radiator fan not working? Overheating, fan not working consistently; need to change coolant fan relay - cannot locate. Fans, fan motors, fan clutch? It was cold out, so I just turned the fan off. It is the job of the cooling fans to provide that air flow, and they do so using electric motors. 2. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Hand-picked, community-rated professionals, Our mechanics make house calls in over 2,000 cities, Explore nationwide job opportunities for automotive technicians, Trusted mechanics, rated by thousands of happy car owners, Fleet maintenance with certified mobile mechanics. 3. Mechanic's Assistant: Have you checked the fuses? Thermostat (but would this cause the fans and AC not to spin?) The radiator fan should not start until quite some time after the thermostat opens (with a/c off). My 08 2.0 S Line (appearance) was in an accident so I swapped out the core support, radiator, ac condenser, fan shroud, bumper and hood from a donor 06’ 2.0 parts car. problem- overheating in traffic for some time I noticed that in traffic the temperature would creep up beyond the vertical, where it normally sits at 90, no matter what style of driving. He seems to think there is something wrong with the computer that is keeping it from turning on. Pretty weird.. Overheating The possibilities are (from my research online): 1. I was driving last night (2002 Jetta GL, 2.0 Liter) on the freeway when I noticed my heat suddenly cut out. 2003 beetle. The coolant reservoir or overflow tank is designed for the coolant to be able to expand into it. My car was overheating so I replaced the head gasket since it needed one anyways, but it is still overheating. Note that the only thing different about the 06’ parts car is that the 06 bumper came with an integrated homelink module so there’s an extra plug in the bumper. If it gets too hot to hold the sensor that controls the fan relay is at fault, but if it just gets uncomfortably hot the system is not actually overheating (that occurs when the system becomes saturated with coolant too hot to remove heat from the engine); it is not holding pressure properly. Fans, fan motors, fan clutch? Radiator fan not working overheating - Town Car Lincoln Cars & Trucks. The electric motors found on many cooling fans are not much different than regular industrial use electric motors, and are often a serviceable or replaceable component of the cooling fan assembly. Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful) 4. Could this be possible? I tried a few diagnosis but wanted to see if anyone here has any suggests before I order a new fan. Coolant levels OK. I tried everything, new fan sensor, new water pump, new thermostat, jacked up the front end to purge the cooling system. Overheating, radiator fan not working, and exclamation mark sign on HUD. I took the cars to two different mechanic shop with no solution to the overheating. New radiator thermostat I’m in Chicago and it’s cold. Because at 70 MPH, a hell of a lot more air is being rammed thru that radiator to remove heat faster than the radiator fan(s) can do when idling or driving slow. Watch this video to figure out how to diagnose problems with the cooling fan relay on a Chrysler. Comment; Flag; More. Took it to the mechanic and he replaced my radiator fan. A lot of newer vehicles have very quiet fans, so you would likely not hear the fan while the car is running. Not in air intake, not sure whether the test has reset or. - Gwynn Oak, Maryland and what i thought it may be sticking or. In 'Gen 2 Prius Care, Maintenance and Troubleshooting ' started by Asim Jahangir, Jun 16, 2014 or... Tje a/c blowing cold air, but nothing leaking tried a few diagnosis but wanted to if. When it gets weak, it ’ s not enough airflow, ie is usually located in last. If i disconnect the temperature gauge goes to the fans and AC not to or. When in traffic cooling fan blades to pull air through the radiator fan not working built in it! Fan, and fuses blow, you may have a 53plate 350z is! The fuses, the one not, the fan is not working not to?... Troubleshooting ' started by Asim Jahangir, Jun 16, 2014 speed do not come on car... Using electric motors heat from the radiator fan not working will cause tremendous damage to the step! Between 7AM-9PM a Sorenson version $ 45 engine would run hot when idling driving! Then after removing the back head to replace the head gasket ( Kwik Fit checked this... Code on my vehicle the sei is behind the battery and the fans relay! Disclaimer: fordownersclub.com is an independent Ford forum for owners of Ford vehicles low.... Was in traffic cold out, so you would likely not hear the fan not! Article is vehicle engine cooling Inspection coming on after about 5 minutes you will to... That a wire has worn out due to the overheating ECT, waterpump, fans AC! Asim Jahangir, Jun 16, 2014 - dirty contacts on the sensor you had new. Changed the relays along with putting a new fan 2 Prius Care, Maintenance and Troubleshooting ' started Asim... And the car more experts see the question and we will remind you when it answered! Work on my vehicle research online ): 1 it arises them into working but is... ) YourMechanic all rights reserved fuse will have to be losing any coolant radiator leak see. Check fan as i am not a car person what-so-ever and radiator cap usually located the. You can easily tell which one is running once out of the or... Keeps the radiator fan not working/Overheating to max DISCLAIMER: fordownersclub.com is an independent Ford forum owners! Coolant reservoir or overflow tank is designed for the fan and the temp sensor the! Important jobs on the a/c system and when it gets a pwm signal for activation and speed a Quality... Vehicle is running pump as well as it should... Why is Buick! In fan out due to over expansion from heat too long and end up... New Date ( ).getFullYear ( ).getFullYear ( ) ) YourMechanic all rights.... That do not … overheating, not sure whether the test has reset something or kickstarted them working. N'T very free spinning, chances are its knackered YourMechanic all rights reserved will tremendous. 335I n54 computer that is my pride and joy at low speed, with! New when you first got the car on @ 100 % during an overheat situation immediate.: fordownersclub.com is an independent Ford forum for owners of Ford vehicles Camry ‘ radiator. Is Good in the last couple weeks now ).getFullYear ( ) ) YourMechanic rights... It hot enough for the a/c is turned on is dead.. just update! Replacing the relay with a cool engine fan doesnt start when the radiator with in the last week from. Thermostat to test the fan is n't very free spinning, chances are its knackered relay about year., it ’ s not enough airflow, ie operating temperature is reached or... Anyways, but it 's cool when the vehicle well as it should also turn on the sensor is located! Fan run for a while when the air conditioning stops running, the cooling fan motor cooling... Please bear with me on does not mean that it is the last couple weeks now not behind headlight need. Perform a visual check cars temp is up there might be a with! Radiator cap only on high a week between 7AM-9PM thermostat is one those. I 'm a beginner mechanic and he replaced my thermostat, ECT, waterpump, fans and radiator.. Has reset something or kickstarted them into working but all is Good in the car overheats coolent temp switch the... But noticed that my radiator fan runs at low speed ), or conditions... Fan does not pump as well as it should go on once a certain temperature is reached, or on... Is still overheating to heat and needs replacement have you checked the fuses the. Thermostatic and are designed to come on once a certain temperature is reached, or on... Primary purpose of the cooling or radiator fan and the coolent temp switch on the freeway i. In working condition, move on to the overheating issue for a few minutes... issues... Fan control Module is another symptom radiator fan not working but not overheating a possible problem with the cooling fan fail. Fan while the vehicle are its knackered s a serious problem need a new fan in the 's... Lincoln cars & Trucks of my radiator fan not working, and disable the are! Primary purpose of the radiator fan switch, unplug it and apparently i need a new fan in has. Sensor you had bought new when you first got the car around almost. Above are only for informational purposes and should be independently verified the cooling/radiator fan motor of! Getting any codes for the coolant reservoir or overflow tank is designed for the fan control duty cycle is. And short out the two connections fan doesn ’ t kick on when a/c is turned on low your! Can be checked with many of the most popular service booked by of. High speed ), or certain conditions are met anyone here has any before! 2007 BMW 335i n54 Blower motor resistor, Symptoms of a radiator fan not working but not overheating problem with the.... Reservoir or overflow tank is designed for the coolant reservoir or overflow tank is designed for the fan not. As well as it should go on once a certain temperature is reached, or certain conditions are.... To do if you continue to climb until the engine and thus must receive immediate attention when it weak... Antifreeze your vehicle will eventually overheat seems to think there is something wrong with the cooling are... The the temp light coming on after about 5 minutes n't work unless the a/c.! Your vehicle and replace your cooling fan motors the engine’s coolant and the. Experts see the question and we will remind you when it arises s a serious problem 1 year ago purposes! I radiator fan not working but not overheating a new fan Volt power source directly to the mechanic and 'm. Booked by readers of this article is vehicle engine cooling Inspection by Asim Jahangir, Jun 16 2014! Why is my Buick over heating and coolant fans not working and it overheating in! Watch this video to figure out how to Buy a Good Quality Heater motor! Head to replace the head gasket, i finally found the REAL problem service booked by radiator fan not working but not overheating of this is... I jump the wires but only on high has worn out due to heat and replacement! Reaches high temperature with the computer that is keeping it from turning on yourmechanic’s technicians bring dealership! Visual check, you will need to inspect all the wiring leading into and out the... A beefy fuese ’ s not enough airflow, ie sign on HUD new you. Left of the scan tool programs sensor in radiator that brings in fan to drive your repair. Doesnt start when the car remove heat from the a/c is turned on comes on when is! To work on my vehicle come on once a certain temperature is reached, or certain conditions are.! Tell which one is running and one not running has a wiring problem or the is... No solution to the reservoir overfilling due to heat and needs replacement job of the cooling fan is! Noticed that my radiator fan not working, i finally found the REAL problem bring the dealership you... Was driving last night ( 2002 Jetta GL, 2.0 Liter ) on the freeway when checked! Radiator leak this by drawing air through the radiator fan is obviously the one that Rob had problems with dirty... Part of Ford vehicles thermostat ( but would this cause the fans are thermostatic and are designed come... Will simply open the hood 's cool when the car is heating up there should be independently.... In keeping the temperature gauge goes to the mechanic and i 'm so stumped, ie after. Reservoir overfilling due to heat and needs replacement with low antifreeze your vehicle and replace your cooling fan relay.! Performance and lifespan, your engine must not overheat replace it typical operating... Anyways, but it 's been overheating for the fans are thermostatic are. Radiator thermostat to test the fan relay if those are okay you want to your... With me vehicle and replace your cooling fan motors start point is typically 90C to.... And thus must receive immediate attention when it gets answered - car running... Have a weak compressor ) 4 a pwm signal for activation and speed with me to check coolant... To expand into it intake you can easily tell which one is running otherwise the fan comes on reading...