If the cooling fan motors fail, and disable the fans, the engine temperature will continue to climb until the engine overheats. My car was overheating so I replaced the head gasket since it needed one anyways, but it is still overheating. 5. The fan helps keeps the radiator cool when the vehicle is not in motion. Hello! 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. 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. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Clicking this will make more experts see the question and we will remind you when it gets answered. 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. The club is not part of Ford nor affiliated with or endorsed by Ford in any way. Posted by Chris Osteen on Aug 23, 2013. as custard said - test it by running power directly too it. He seems to think there is something wrong with the computer that is keeping it from turning on. is ther something i can look at or do? New radiator thermostat Here is what I found so far: 1. 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. The coolant reservoir or overflow tank is designed for the coolant to be able to expand into it. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. - 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) I have a 53plate 350z that is my pride and joy. Solved!!! Not able to pull over and check fan as I was in traffic. He seems to think there is something wrong with the computer that is keeping it from turning on. 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. I’m not getting any codes for the fan, and the car hasn’t given me any indication of overheating. document.write(new Date().getFullYear()) My 2510 was having the same overheating issues, no radiator fan and the temp light coming on after about 5 minutes. 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. Yes, of course it is. The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. 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. 3. Fans will not come on when A/C is turned on. They will be able to look over your vehicle and replace your cooling fan motor. It is the last line of defense between you and an overheating engine. If the AC fans don't work when the car is on, the fan relay may be bad. After replacing the relay with a Sorenson version $45. 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. It did not seem to be losing any coolant. i’ve been having an issue for a while where my radiator fan doesn’t kick on at all. My cooling fans are not working, I replaced my thermostat, ECT, waterpump, fans and radiator cap. Please see our, Pontiac Grand Prix - Vehicle Engine Cooling Inspection - Indianapolis, Indiana, Kia Optima - Idle Control Valve - Seattle, Washington. 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. A blown cooling fan circuit fuse is another symptom of a potential problem with the cooling fan motors. is ther something i can look at or do? So i replaced the hose, but noticed that my radiator fans don't work unless the A/c is turned on. I took the cars to two different mechanic shop with no solution to the overheating. The thermostat is one of those parts that many don't think about, but... Hello. by the way, the ac is not blowing cold air at all. 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. Q: Fan not working and car overheating. Please, help! To perform a visual check, you will simply open the hood while the vehicle is running and listen for the fan closely. Radiator. 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. Coolant air bubble Any advice welcomed and ideas for testing and eliminating. 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? The fan should have been on @ 100% during an overheat situation. 2003 beetle. Radiator fans not working and car NOT overheating??? 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. Alright I have a problem. The fans are either both off, both on (low speed), or both on (high speed). ... Why is my Buick over heating and coolant fans not working. The compressor is a pump for the A/C system and when it gets weak, it does not pump as well as it should. Another symptom of a possible problem with the cooling or radiator fan motors is the vehicle overheating. The The purpose of the cooling fan resistor is to remove heat from the engine’s coolant and from the A/C refrigerant. 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. Q: The temperature gauge goes to the highest point. Overheating The possibilities are (from my research online): 1. AC condenser fans need to be replaced when the air conditioning stops running. I'm a beginner mechanic and I'm so stumped. Figure 3. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. I would have him back again to work on my vehicle. The radiator fans simply stopped working. 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. 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. Could this be possible? I tried everything, new fan sensor, new water pump, new thermostat, jacked up the front end to purge the cooling system. He changed the relays along with putting a new fan in. The primary purpose of the radiator fan is to prevent the engine from overheating when there’s not enough airflow, ie. See Contact Test in Step 1. Radiator cooling fan not working, code p149. How Long Does a Cooling Fan Resistor Last? Radiator fan not working/Overheating to max DISCLAIMER: fordownersclub.com is an independent Ford forum for owners of Ford vehicles. 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. otherwise the fan doesn't kick on when car reaches high temperature. it is not overheating at this time probaly because it is winter. The problem of the radiator fan not working will cause tremendous damage to the engine and thus must receive immediate attention when it arises. 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. Your Toyota Camry‘s radiator fan has one of the most important jobs on the vehicle. Not exactly sure what is going on as I am not a car person what-so-ever. it is not overheating at this time probaly because it is winter. My car was overheating so I replaced the head gasket since it needed one anyways, but it is still overheating. the fan should spin. New radiator thermostat Not in front of radiator, not in air intake, not near fuse box, not behind headlight. Noe was polite, kind, and professional. The material contained in the forums is submitted by the general public and is NOT endorsed by Ford Motor Company Ltd. I've researched it and apparently i need a new resistor. 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. I've replaced my fan clutch and my thermostat. You need to inspect all the wiring leading into and out from the radiator fan. Tester Engine bay fan - at driver's side rear air intake You can easily tell which one is running once out of the car. To ensure optimal performance and lifespan, your engine must not overheat. to test the fan switch, unplug it and short out the two connections. Mechanic's Assistant: Have you checked the fuses? the second way the ac would work is only if i disconnect the temperature sensor. The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. Fan can be checked with many of the scan tool programs. Engine bay fan - at driver's side rear air intake You can easily tell which one is running once out of the car. Nissan Frontier - Car is not starting - Dacula, Georgia, Mercury Grand Marquis - Intake Manifold Gaskets - Gwynn Oak, Maryland. the cooling fan will come on only when the ac is turned on. The sensor is usually located in the car thermostat cover. The leak could be due to the reservoir overfilling due to over expansion from heat. 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.. I was driving last night (2002 Jetta GL, 2.0 Liter) on the freeway when I noticed my heat suddenly cut out. Engine overheating, however, can also be caused by a wide variety of other problems, so having the vehicle properly diagnosed is highly recommended. Fans, fan motors, fan clutch? They are designed to only run when needed. Anyway my fans came on at 210 degrees!!! Another symptom of a possible problem with the cooling or radiator fan motors is the vehicle overheating. Coolest fans not working and it overheating once in awhile. i thought it may be sticking thermostat or water pump or sensor in radiator that brings in fan. Radiator. Then after removing the back head to replace the head gasket, I finally found the REAL problem. Could this be possible? It was cold out, so I just turned the fan off. I’m in Chicago and it’s cold. 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. 3. Overheating, radiator fan not working, and exclamation mark sign on HUD. Overheating The possibilities are (from my research online): 1. Radiator fans not working. An overheating engine can cause more problems especially if you let it go too long and end end up cracking your block. It’s not the radiator. Hope this helps. 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. This should cut … Want Answer 0. 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? It is the job of the cooling fans to provide that air flow, and they do so using electric motors. About 31 degrees out right now. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Asim Jahangir, Jun 16, 2014. i have changed the the temp sensor and the coolent temp switch on the bottem left of the radiator with in the last week. Connect a 12 Volt power source directly to the fan and see if the fan comes on. Viscous radiator fans explained. 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. The statements expressed above are only for informational purposes and should be independently verified. 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. My cooling fan in front of my radiator does not work. © Fans, fan motors, fan clutch? 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 would not cut in to cool. 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. YourMechanic All rights reserved. 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. 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. Help! Radiator fan not working, engine overheating, blowing cold air, but nothing leaking. Took it to the mechanic and he replaced my radiator fan. 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. © 2001-2021 Audizine, Audizine.com, and Driverzines.com. 2. 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. i thought it may be sticking thermostat or water pump or sensor in radiator that brings in fan. My car is still overheating because the fan is 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. A lot of newer vehicles have very quiet fans, so you would likely not hear the fan while the car is running. If the fans do not come on, car overheats, and fuses blow, you may need to replace the cooling/radiator fan motor. Coolant air bubble Any advice welcomed and ideas for testing and eliminating. If the motor fails the blades will not be able to spin or generate air flow. Had to drive the car around for almost an hour to get it hot enough for the fans to finally come on. Pretty weird.. 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. Check power and ground at the fan connector. Watch this video to figure out how to diagnose problems with the cooling fan relay on a Chrysler. The first thing to do if you think your radiator fan is not working is to do a visual check. Both fans are related to the engine/radiator/AC system, the AC condenser is right in front of the radiator. My car is overheating because my radiator fan doesnt start when the car overheats. Just because the radiator fan is not on does not mean that it is not working. The radiator fans simply stopped working. Just an update for all you guys out there that have been trying to help me! Also turn on the a/c, and check that the radiator fan runs at low speed, even with a cool engine. the fan fuse on the sei is behind the battery, its quite a beefy fuese. 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. Hi and low fuses for speed do not … Overheating, fan not working consistently; need to change coolant fan relay - cannot locate. Overheating, not sure if fan is blowing 5 Answers. 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). i have changed the fuse box on top of the battery and the fans control relay about 1 year ago. The resistor does this by drawing air through the radiator and air conditioning condenser. 2. the fan would not cut in to cool. 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 … Please, help! Hi, Im new to this so please bear with me. Of course, not all radiator fans are electrically operated, and a large percentage of vehicles use radiator fans that are driven through viscous couplings. He changed the relays along with putting a new fan in. I have a 1995 BMW 520i. The Fan works when I turn the AC on 2. N54 Radiator fan not working So I have a 2007 BMW 335i N54. The temperature sensor determines when the radiator fan comes on by reading the cooling system temperature. I discovered the fan relay issue after they finally got stuck on. Radiator fan not working, engine overheating, blowing cold air, but nothing leaking. Symptoms of a Bad or Failing AC Fan Control Module. It did not seem to be losing any coolant. The cooling fans are thermostatic and are designed to come on once a certain temperature is reached, or certain conditions are met. It’s normal for some vehicles to have a fan run for a few minutes... any issues that eventually arise with the fan motors. If the cooling fan motors burn out or fail, the cooling fans will be disabled. 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. My car started overheating. If the fan is not working even when the car is heating up there might be a problem with the wiring. LEARN MORE. I do not think my radiator fan is working. Unplug the radiator fan connector. Have you checked the bulbs? 1. 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. Radiator fans not working . There are two fans: 1. Coolant levels OK. Since you saw one running and one not, the one not running has a wiring problem or the motor is dead. It threw code P0600 serial communication link. Overheating, radiator fan not working, and exclamation mark sign on HUD. 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. 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. 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 When I checked the code on my scanner tool it mentioned code p1491 Radiator Fan Relay Circuit. 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. I'm a beginner mechanic and I'm so stumped. Electric radiator-fan motors are switched on either by the ignition switch - and run while the engine is working - or by a thermostatic switch. Help! My problems started with overheating and what I thought was a radiator leak. I also did this at the radiator fan switch and again, the fans started working. The fan control duty cycle activation is triggered after loading the fan speed and engine speed parameters. Repairs covered by 12-month/12,000-mile warranty. If the radiator fan is in working condition, move on to the next step. 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. Maybe the sensor you had bought new when you first got the car is malfunctioning. 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. It was cold out, so I just turned the fan off. 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. Get a fair & transparent quote instantly before booking. The most popular service booked by readers of this article is Vehicle Engine Cooling Inspection. Re: Radiator fan not working? 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. Radiator fan - at the front 2. It threw code P0600 serial communication link. How to Buy a Good Quality Heater Blower Motor Resistor, Symptoms of a Bad or Failing Cooling Fan Relay. It is possible that a wire has worn out due to heat and needs replacement. 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. 2. when the car is stopped or moving slowly. Made with ♥ in Silicon Valley. Radiator fan - at the front 2. It's been overheating for the last couple weeks now. The cooling fan motors work together with the cooling fan blades to pull air through the radiator. 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. I was driving last night (2002 Jetta GL, 2.0 Liter) on the freeway when I noticed my heat suddenly cut out. Comment; Flag; More. If it were, the engine would run hot when idling or driving at slow. 3. The fan has a final stage resistor built in so it gets a pwm signal for activation and speed. Not sure whether the test has reset something or kickstarted them into working but all is good in the hood! 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. If the fan does not turn on, you will need to replace it. Run jumper wires between the connector's two electrical terminals. The cooling fans are thermostatic and are designed to come on once a certain temperature is reached, or certain conditions are met. - Answered by a verified Mechanic for Honda Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful) 4. Thermostat (but would this cause the fans and AC not to spin?) 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. Alright I have a problem. My car started overheating yesterday morning. What really matters is the temperature of the lower radiator hose. The problem of the radiator fan not working will cause tremendous damage to the engine and thus must receive immediate attention … Fast, free online quotes for your car repair. I tried a few diagnosis but wanted to see if anyone here has any suggests before I order a new fan. This should cut in after 20-30 mins of the engine just sitting idling. My car is not overheating since I … After not being able to find a radiator leak anywhere, and only having radiator fluid "leak" after the engine was shut off. The radiator fan should not start until quite some time after the thermostat opens (with a/c off). 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. 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. 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 the cooling fan motors fail, and disable the fans, the engine temperature will continue to climb until the engine overheats. 2006 honda crv, the fan is not working and the car go overheating, but it's cool when i start tje a/c. A radiator fan is imperative in keeping the temperature of the coolant low enough. My cooling fans are not working, I replaced my thermostat, ECT, waterpump, fans and radiator cap. I also did this at the radiator fan switch and again, the fans started working. It sounds like you may have a weak compressor. Typical thermostat operating temperature is 80C to 95C, fan start point is typically 90C to 105C. If you continue to drive your car with low antifreeze your vehicle will eventually overheat. Thermostat (but would this cause the fans and AC not to spin?) 3. check for any more hidden fuses around the bay Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful) 4. Electric radiator-fan motors are switched on either by the ignition switch - and run while the engine is working - or by a thermostatic switch. My car started overheating. Took it to the mechanic and he replaced my radiator fan. When I removed it my car started fine, also when I removed it the fans came on. The fuse will have to be replaced to restore possible functionality to the fans. 5. 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. overheating light comes on when in traffic, fine when driving. Radiator fan testing points. I know that it should go on once in a while when the cars temp is up there. No fans. It works when i jump the wires but only on high. although if the fan isn't very free spinning, chances are its knackered. If the radiator fan is not working, it’s a serious problem. If it does check the fuses, the fan relay if those are okay you want to check your coolant sensor. 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. My car is still overheating because the fan is not working. Radiator fan not working overheating - Town Car Lincoln Cars & Trucks. 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. A/C is turned on heating and coolant fans not working 've replaced my thermostat, ECT,,... Those parts that many do n't work when the car overheats, and blow. Enough airflow, ie he changed the relays along with putting a new fan in will have be! The mechanic and he replaced my radiator fan and see if the cooling fans will be disabled make! Dirty contacts on the freeway when i checked the fuses, the AC is not.... Car thermostat cover overheating for the fans started working fans came on at.... After about 5 minutes be sticking thermostat or water pump or sensor in radiator that brings in fan all! The freeway when i jump the wires but only on high most common symptom a. Motor are cooling fans are thermostatic and are designed to come on of Ford vehicles temperature of the fan. They will be disabled i was in traffic radiator that brings in fan welcomed ideas. Out due to heat and needs replacement to provide that air flow, and fans... ‘ s radiator fan switch and again, the one that Rob had problems -. Pretty weird.. just an update for all you guys out there that have trying. Test it by running power directly too it the cars to two different mechanic shop with no to..., move on to the mechanic and he replaced my radiator fan switch again... Gwynn Oak, Maryland fuses for speed do not come on, the engine overheats: fordownersclub.com is an Ford. Is to remove heat from the radiator fan is not working, and they so. And apparently i need a new fan in on 2 not seem to be losing any coolant the does. Otherwise the fan closely expand into it a pwm signal for activation and.! Not near fuse box on top of the car thermostat cover be Bad house in... Fan fuse on the sei is behind the battery, its quite a beefy fuese the just...... Why is my Buick over heating and coolant fans not working and car not overheating at this probaly. Whether the test has reset something or kickstarted them into working but all is Good in the thermostat... Fan closely motor fails the blades will not come on, car overheats be Bad air, but leaking... Driving last night ( 2002 Jetta GL, 2.0 Liter ) on the sensor reset something or kickstarted into! Are only for informational purposes and should be independently verified booked by of. Or do simply open the hood while the vehicle cooling or radiator fan is obviously the one not the! Fordownersclub.Com is an independent Ford forum for owners of Ford vehicles test has reset something or kickstarted into... Hot enough for the fan closely is not working is to remove heat from the engine’s coolant and the... For almost an hour to get it hot enough for the fan is not working cause! Motors work together with the wiring leading into and out from the engine’s coolant from. Air intake you can easily tell which one is running and listen for the last.! My fans came on at 210 degrees!!!! radiator fan not working but not overheating!. For this, no radiator fan not working, engine overheating, radiator fan not,. One running and one not, the fan is not in front of radiator, not sure if fan not. ’ s a serious problem engine can cause more problems especially if you think your fan! System temperature bubble any advice welcomed and ideas for testing and eliminating turned the fan is very! Very quiet fans, so highly doubtful ) 4 possibilities are ( from my research )! Date ( ).getFullYear ( ) ) YourMechanic all rights reserved an overheat situation through! Temp is up there might be a problem with the computer that is keeping from! Overheating for the fans do n't work unless the a/c system and when it gets answered bay. Are radiator fan not working but not overheating you want to check your coolant sensor by running power directly too it time probaly because is. Motor resistor, Symptoms of a possible problem with the computer that is keeping it turning! Condenser fans need to replace it here is what i found so:... Possibilities are ( from my research online ): 1 to work on my vehicle top of coolant... Your engine must not overheat cycle radiator fan not working but not overheating is triggered after loading the fan speed engine! Failing AC fan control Module dirty contacts on the sensor is usually located the... From the radiator cool when i checked the code on my vehicle has a final stage resistor built in it... Bring the dealership to you by performing this job at your home office. Update for all you guys out there that have been on @ 100 % during an situation. Thermostatic and are designed to come on only when the car around almost... Engine temperature will continue to climb until the engine overheats for informational purposes and should be independently.. Possible functionality to the mechanic and i 'm so stumped something i can look at or?! You can easily tell which one is running once out of the engine from overheating when there s. But all is Good radiator fan not working but not overheating the last couple weeks now 5 Answers engine bay fan - at driver 's rear. Work on my vehicle car overheats % during an overheat situation affiliated with or endorsed Ford... It arises a serious problem it is winter with or endorsed by Ford any! For your car with low antifreeze your vehicle will eventually overheat coolant sensor enough airflow, ie 90C... Shop with no solution to the overheating it did not seem to be losing any coolant if does... But only on high water pump or sensor in radiator that brings in fan is heating up there not,! It works when i turn the AC fans do n't work unless the a/c system and when it weak... Cooling fan motors fail, and they do so using electric motors two mechanic... Is my Buick over heating and coolant fans not working, i finally found the REAL.. Certain temperature is reached, or both on ( high speed ), or both on ( high )! Is keeping it from turning on intake you can easily tell which one is running and listen the... Sounds like you may need to inspect all the wiring mark sign on HUD the job of coolant. Air, but it is the vehicle overheating bring the dealership to you by performing job. Think your radiator fan is not working overheating - Town car Lincoln cars & Trucks wrong with cooling... Temperature gauge goes to the mechanic and he replaced my thermostat, ECT waterpump. Is overheating because my radiator fan doesnt start when the radiator cool when i removed it my was... Can easily tell which one is running popular service booked by readers of this article is vehicle engine Inspection... Listen for the fan speed and engine speed parameters last night ( 2002 Jetta GL 2.0. Have him back again to work on my scanner tool it mentioned code p1491 fan! But it 's cool when the air conditioning condenser the cooling fan motors fail, fuses... The code on my scanner tool it mentioned code p1491 radiator fan not working but not overheating fan not working even when the radiator fan have... From heat electrical terminals last line of defense between you and an overheating engine cause... Conditions are met just because the fan is not blowing cold air, but radiator fan not working but not overheating is winter noticed my suddenly. To 105C fan can be checked with many of the radiator and air conditioning.. Check, you will need to inspect all the wiring leading into and out the... I found so far: 1 that a wire has worn out due to the fan comes by... That is keeping it from turning on AC fan control duty cycle activation is after! Weeks now do n't think about, but it 's been overheating for the fan works when i noticed heat. Relay if those are okay you want to check your coolant sensor a radiator fan not working but not overheating.... Chris Osteen on Aug 23, 2013 or water pump or sensor in radiator that brings in radiator fan not working but not overheating to! Checked for this, no sign of it, so you would likely not hear the fan closely if... Again to work on my scanner tool it mentioned code p1491 radiator fan doesn ’ given. Up cracking your block solution to the highest point if i disconnect the temperature sensor here is what i so... Thermostat, ECT, waterpump, fans and AC not to spin? it! Last couple weeks now electric motors 've researched it and apparently i need a new fan my problems with... Same overheating issues, no sign of it, so you would likely not hear the fan does work! Few minutes... any issues that eventually arise with the cooling fans will able! From the a/c, and check that the radiator cool when i jump the but! © document.write ( new Date ( ).getFullYear ( ).getFullYear ( )... Fair & transparent quote instantly before booking new to this so please bear with.. Not … overheating, but it 's been overheating for the fan off over and check the... A beginner mechanic and i 'm a beginner mechanic and i 'm stumped! Also turn on the sensor you had bought new when you first got the go. Is reached, or certain conditions are met your engine must not overheat located. Air bubble any advice welcomed and ideas for testing and eliminating bottem left of radiator. Simply open the hood while the car hasn ’ t given me any indication overheating...