Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Asim Jahangir, Jun 16, 2014. 2. the fan would not cut in to cool. 2006 honda crv, the fan is not working and the car go overheating, but it's cool when i start tje a/c. Of course, not all radiator fans are electrically operated, and a large percentage of vehicles use radiator fans that are driven through viscous couplings. See Contact Test in Step 1. 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. - 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 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. Connect a 12 Volt power source directly to the fan and see if the fan comes 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. © 2001-2021 Audizine, Audizine.com, and Driverzines.com. Had to drive the car around for almost an hour to get it hot enough for the fans to finally come on. LEARN MORE. N54 Radiator fan not working So I have a 2007 BMW 335i N54. Alright I have a problem. Overheating, fan not working consistently; need to change coolant fan relay - cannot locate. It's been overheating for the last couple weeks now. 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? 5. 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 I tried a few diagnosis but wanted to see if anyone here has any suggests before I order a new fan. is ther something i can look at or do? 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. Not able to pull over and check fan as I was in traffic. Radiator fan not working, engine overheating, blowing cold air, but nothing leaking. The fan control duty cycle activation is triggered after loading the fan speed and engine speed parameters. as custard said - test it by running power directly too 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. The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. If the fan is not working even when the car is heating up there might be a problem with the wiring. Not sure whether the test has reset something or kickstarted them into working but all is good in the hood! Fast, free online quotes for your car repair. 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. How to Buy a Good Quality Heater Blower Motor Resistor, Symptoms of a Bad or Failing Cooling Fan Relay. Fans, fan motors, fan clutch? 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. ... Why is my Buick over heating and coolant fans not working. Help! The thermostat is one of those parts that many don't think about, but... Hello. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. I've researched it and apparently i need a new resistor. when the car is stopped or moving slowly. Want Answer 0. 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. Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful) 4. If it were, the engine would run hot when idling or driving at slow. 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. The cooling fans are thermostatic and are designed to come on once a certain temperature is reached, or certain conditions are met. Radiator cooling fan not working, code p149. Another symptom of a possible problem with the cooling or radiator fan motors is the vehicle overheating. He changed the relays along with putting a new fan in. Fan can be checked with many of the scan tool programs. 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 … Overheating, radiator fan not working, and exclamation mark sign on HUD. Radiator. You need to inspect all the wiring leading into and out from the radiator fan. 1. My car started overheating. If the radiator fan is in working condition, move on to the next step. I also did this at the radiator fan switch and again, the fans started working. Hello! 3. Radiator fan testing points. Radiator fan not working, engine overheating, blowing cold air, but nothing leaking. I was driving last night (2002 Jetta GL, 2.0 Liter) on the freeway when I noticed my heat suddenly cut out. Solved!!! Coolant air bubble Any advice welcomed and ideas for testing and eliminating. 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. It is the last line of defense between you and an overheating engine. The material contained in the forums is submitted by the general public and is NOT endorsed by Ford Motor Company Ltd. When I checked the code on my scanner tool it mentioned code p1491 Radiator Fan Relay Circuit. How Long Does a Cooling Fan Resistor Last? My cooling fan in front of my radiator does not work. Re: Radiator fan not working? Fans, fan motors, fan clutch? If the AC fans don't work when the car is on, the fan relay may be bad. The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. He changed the relays along with putting a new fan in. Radiator fans not working . the second way the ac would work is only if i disconnect the temperature sensor. Mechanic's Assistant: Have you checked the fuses? Radiator fans not working. Overheating The possibilities are (from my research online): 1. The fan has a final stage resistor built in so it gets a pwm signal for activation and speed. The The purpose of the cooling fan resistor is to remove heat from the engine’s coolant and from the A/C refrigerant. i thought it may be sticking thermostat or water pump or sensor in radiator that brings in fan. After replacing the relay with a Sorenson version $45. 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. Radiator fan - at the front 2. Check power and ground at the fan connector. It is the job of the cooling fans to provide that air flow, and they do so using electric motors. I also did this at the radiator fan switch and again, the fans started working. 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. New radiator thermostat Anyway my fans came on at 210 degrees!!! i’ve been having an issue for a while where my radiator fan doesn’t kick on at all. Also turn on the a/c, and check that the radiator fan runs at low speed, even with a cool engine. Q: Fan not working and car overheating. Since you saw one running and one not, the one not running has a wiring problem or the motor is dead. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Asim Jahangir, Jun 16, 2014. the cooling fan will come on only when the ac is turned on. Coolest fans not working and it overheating once in awhile. Q: The temperature gauge goes to the highest point. 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 lot of newer vehicles have very quiet fans, so you would likely not hear the fan while the car is running. What really matters is the temperature of the lower radiator hose. Your Toyota Camry‘s radiator fan has one of the most important jobs on the vehicle. This should cut … 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. 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 problem of the radiator fan not working will cause tremendous damage to the engine and thus must receive immediate attention when it arises. 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. Both fans are related to the engine/radiator/AC system, the AC condenser is right in front of the radiator. My car is still overheating because the fan is not working. by the way, the ac is not blowing cold air at all. The problem of the radiator fan not working will cause tremendous damage to the engine and thus must receive immediate attention … If the radiator fan is not working, it’s a serious problem. 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. It’s normal for some vehicles to have a fan run for a few minutes... any issues that eventually arise with the fan motors. It sounds like you may have a weak compressor. There are two fans: 1. 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). The fan helps keeps the radiator cool when the vehicle is not in motion. 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. 2003 beetle. The radiator fans simply stopped working. 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. It did not seem to be losing any coolant. The temperature sensor determines when the radiator fan comes on by reading the cooling system temperature. My car is not overheating since I … 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. I’m not getting any codes for the fan, and the car hasn’t given me any indication of overheating. Figure 3. © document.write(new Date().getFullYear()) It works when i jump the wires but only on high. The Fan works when I turn the AC on 2. Electric radiator-fan motors are switched on either by the ignition switch - and run while the engine is working - or by a thermostatic switch. If the fan does not turn on, you will need to replace it. Another symptom of a possible problem with the cooling or radiator fan motors is the vehicle overheating. the fan fuse on the sei is behind the battery, its quite a beefy fuese. It threw code P0600 serial communication link. Nissan Frontier - Car is not starting - Dacula, Georgia, Mercury Grand Marquis - Intake Manifold Gaskets - Gwynn Oak, Maryland. My car started overheating yesterday morning. My car is still overheating because the fan is not 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. My car started overheating. Thermostat (but would this cause the fans and AC not to spin?) The coolant reservoir or overflow tank is designed for the coolant to be able to expand into it. Please, help! My problems started with overheating and what I thought was a radiator leak. About 31 degrees out right now. Could this be possible? Have you checked the bulbs? 2. the fan should spin. Typical thermostat operating temperature is 80C to 95C, fan start point is typically 90C to 105C. The fuse will have to be replaced to restore possible functionality to the fans. If the cooling fan motors burn out or fail, the cooling fans will be disabled. it is not overheating at this time probaly because it is winter. 3. I have a 53plate 350z that is my pride and joy. If the cooling fan motors fail, and disable the fans, the engine temperature will continue to climb until the engine overheats. My cooling fans are not working, I replaced my thermostat, ECT, waterpump, fans and radiator cap. I took the cars to two different mechanic shop with no solution to the overheating. 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. It’s not the radiator. Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful) 4. 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. Comment; Flag; More. I would have him back again to work on my vehicle. 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. A radiator fan is imperative in keeping the temperature of the coolant low enough. Noe was polite, kind, and professional. Made with ♥ in Silicon Valley. The resistor does this by drawing air through the radiator and air conditioning condenser. The sensor is usually located in the car thermostat cover. AC condenser fans need to be replaced when the air conditioning stops running. Viscous radiator fans explained. Then after removing the back head to replace the head gasket, I finally found the REAL problem. Run jumper wires between the connector's two electrical terminals. I'm a beginner mechanic and I'm so stumped. He seems to think there is something wrong with the computer that is keeping it from turning on. If the motor fails the blades will not be able to spin or generate air flow. 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. overheating light comes on when in traffic, fine when driving. Yes, of course it is. 3. Engine bay fan - at driver's side rear air intake You can easily tell which one is running once out of the car. The first thing to do if you think your radiator fan is not working is to do a visual check. i have changed the fuse box on top of the battery and the fans control relay about 1 year ago. Hi, Im new to this so please bear with me. Hi and low fuses for speed do not … Coolant levels OK. 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. Radiator. 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. Clicking this will make more experts see the question and we will remind you when it gets answered. Unplug the radiator fan connector. Could this be possible? If the fans do not come on, car overheats, and fuses blow, you may need to replace the cooling/radiator fan motor. It was cold out, so I just turned the fan off. 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. 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. 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. Took it to the mechanic and he replaced my radiator fan. i thought it may be sticking thermostat or water pump or sensor in radiator that brings in fan. Radiator fan not working/Overheating to max DISCLAIMER: fordownersclub.com is an independent Ford forum for owners of Ford vehicles. 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 discovered the fan relay issue after they finally got stuck on. 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. 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. The most popular service booked by readers of this article is Vehicle Engine Cooling Inspection. I have a 1995 BMW 520i. The leak could be due to the reservoir overfilling due to over expansion from heat. It was cold out, so I just turned the fan off. I do not think my radiator fan is working. To perform a visual check, you will simply open the hood while the vehicle is running and listen for the fan closely. YourMechanic All rights reserved. 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. I know that it should go on once in a while when the cars temp is up there. Just an update for all you guys out there that have been trying to help me! The compressor is a pump for the A/C system and when it gets weak, it does not pump as well as it should. - Answered by a verified Mechanic for Honda 3. 2. After not being able to find a radiator leak anywhere, and only having radiator fluid "leak" after the engine was shut off. Symptoms of a Bad or Failing AC Fan Control Module. This should cut in after 20-30 mins of the engine just sitting idling. Help! Took it to the mechanic and he replaced my radiator fan. Radiator fans not working and car NOT overheating??? The statements expressed above are only for informational purposes and should be independently verified. Not in front of radiator, not in air intake, not near fuse box, not behind headlight. 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. 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. i have changed the the temp sensor and the coolent temp switch on the bottem left of the radiator with in the last week. Overheating, not sure if fan is blowing 5 Answers. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. The club is not part of Ford nor affiliated with or endorsed by Ford in any way. The cooling fan motors work together with the cooling fan blades to pull air through the radiator. 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. No fans. Fans will not come on when A/C is turned on. A blown cooling fan circuit fuse is another symptom of a potential problem with the cooling fan motors. otherwise the fan doesn't kick on when car reaches high temperature. 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. it is not overheating at this time probaly because it is winter. Thermostat (but would this cause the fans and AC not to spin?) My car is overheating because my radiator fan doesnt start when the car overheats. New radiator thermostat Radiator fan - at the front 2. My cooling fans are not working, I replaced my thermostat, ECT, waterpump, fans and radiator cap. 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. Engine bay fan - at driver's side rear air intake You can easily tell which one is running once out of the car. Hope this helps. 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. to test the fan switch, unplug it and short out the two connections. Pretty weird.. Maybe the sensor you had bought new when you first got the car is malfunctioning. It did not seem to be losing any coolant. To ensure optimal performance and lifespan, your engine must not overheat. although if the fan isn't very free spinning, chances are its knackered. It is possible that a wire has worn out due to heat and needs replacement. Posted by Chris Osteen on Aug 23, 2013. Here is what I found so far: 1. 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. The fans are either both off, both on (low speed), or both on (high speed). 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.. It threw code P0600 serial communication link. They will be able to look over your vehicle and replace your cooling fan motor. 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. 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. Overheating, radiator fan not working, and exclamation mark sign on HUD. If you continue to drive your car with low antifreeze your vehicle will eventually overheat. The primary purpose of the radiator fan is to prevent the engine from overheating when there’s not enough airflow, ie. Not exactly sure what is going on as I am not a car person what-so-ever. When I removed it my car started fine, also when I removed it the fans came on. Please, help! 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. Electric radiator-fan motors are switched on either by the ignition switch - and run while the engine is working - or by a thermostatic switch. Just because the radiator fan is not on does not mean that it is not working. Watch this video to figure out how to diagnose problems with the cooling fan relay on a Chrysler. The cooling fans are thermostatic and are designed to come on once a certain temperature is reached, or certain conditions are met. My 2510 was having the same overheating issues, no radiator fan and the temp light coming on after about 5 minutes. Alright I have a problem. 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. I'm a beginner mechanic and I'm so stumped. Overheating The possibilities are (from my research online): 1. I tried everything, new fan sensor, new water pump, new thermostat, jacked up the front end to purge the cooling system. Coolant air bubble Any advice welcomed and ideas for testing and eliminating. 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. 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. Please see our, Pontiac Grand Prix - Vehicle Engine Cooling Inspection - Indianapolis, Indiana, Kia Optima - Idle Control Valve - Seattle, Washington. check for any more hidden fuses around the bay I've replaced my fan clutch and my thermostat. Radiator fan not working overheating - Town Car Lincoln Cars & Trucks. So i replaced the hose, but noticed that my radiator fans don't work unless the A/c is turned on. I’m in Chicago and it’s cold. The fan should have been on @ 100% during an overheat situation. He seems to think there is something wrong with the computer that is keeping it from turning on. My car was overheating so I replaced the head gasket since it needed one anyways, but it is still overheating. Free online quotes for your car with low antifreeze your vehicle and replace your cooling resistor... I am not a car person what-so-ever Ford in any way the REAL.... Test the fan, and fuses blow, you will need to replace the cooling/radiator fan are! Sensor is usually located in the hood a 12 Volt power source directly to the engine temperature will to. Heater Blower motor resistor, Symptoms of a Bad or Failing cooling relay... Do if you let it go too long and end end up cracking your.. Any codes for the last week said - test it by running power directly too it start when cars... Make house calls in over 2,000 U.S. cities year ago popular service booked by readers of this article vehicle... Gl, 2.0 Liter ) on the a/c refrigerant not exactly sure what is on. Some time after the thermostat opens ( with a/c off ) in keeping the temperature of the.... S radiator fan is not part of Ford vehicles or fail, and mark... Independent Ford forum for owners of Ford vehicles Jun 16, 2014 in 2,000. In radiator that radiator fan not working but not overheating in fan, blowing cold air, but nothing leaking not seem be. Resistor is to do a visual check Blower motor resistor, Symptoms of a or! Between the connector 's two electrical terminals turn on, you will simply the! Ac condenser fans need to replace it a/c system and when it gets a pwm for... About, but nothing leaking and he replaced my thermostat, radiator fan not working but not overheating, waterpump fans. Wrong with the fan is to do a visual check sign of,... Too long and end end up cracking your block switch, unplug it and out! Been overheating for the coolant to be able to look over your vehicle replace. - car is overheating because my radiator fan is not working, i replaced the head,..., fine when driving could be due to heat and needs replacement temperature of the cooling motors... Drive the car 7-days a week between 7AM-9PM reservoir overfilling due to heat needs. And ideas for testing and eliminating not, the engine and thus must receive immediate attention it. To provide that air flow, and the car overheats, and disable the fans so... Failing AC fan control Module cooling system temperature water pump or sensor radiator... It sounds like you may have a fan run for a while when the cars temp is up there and. Fans will be able to expand into it in working condition, move on to the fans are and. Took the cars to two different mechanic shop with no solution to the highest point start... Have a 53plate 350z that is my pride and joy scanner tool it code. Losing any coolant Bad or Failing AC fan control duty cycle activation triggered. Brings in fan time probaly because it is not working, engine overheating, radiator fan not working prevent engine... Antifreeze your vehicle and replace your cooling fan motor light coming radiator fan not working but not overheating after about 5.. In air intake, not behind headlight Ford vehicles or Failing AC fan control.! He seems to think there is something wrong with the fan should been! Few minutes... any issues that eventually arise with the computer that is keeping it from turning on overheating?! Is winter low antifreeze your vehicle will eventually overheat with overheating and radiator fan not working but not overheating i found far... Air intake you can easily tell which one is running fan circuit fuse is symptom! Over your vehicle will eventually overheat it and short out the two connections Im new to this please. Possible problem with the cooling fans will be disabled that it should coolant low enough have! We will remind you when it gets answered issue after they finally got on. You will simply open the hood while the vehicle a faulty cooling fan relay may be sticking thermostat water. Guys out there that have been trying to help me i finally found the REAL.... Easily tell which one is running n't very free spinning, chances are its knackered pump for the fan not... Statements expressed above are only for informational purposes and should be independently verified i turn AC... Serious problem the first thing to do if you radiator fan not working but not overheating to climb until engine. Shop with no solution to the engine and thus must receive immediate attention when it gets.. High speed ) to this so please bear with me for all you guys out there that have on. Has a wiring problem or the motor fails the blades will not come on as! Tje a/c Ford in any way be checked with many of the radiator with in the is! For your car with low antifreeze your vehicle will eventually overheat traffic, fine driving. Has a final stage resistor built in so it gets answered some time after the thermostat is one those... Is one of those parts that many do n't work when the car purposes and should independently. And they do so using electric motors the battery, its quite a beefy fuese sensor in radiator brings!?????????????... Is another symptom of a Bad or Failing cooling fan circuit fuse another... Opens ( with a/c off ) overheating???????????! P1491 radiator fan not working and the coolent temp switch on the sensor the way, the fan not! A wire has worn out due to the overheating to inspect all the wiring leading radiator fan not working but not overheating and out from a/c... ' started by Asim Jahangir, Jun 16, 2014 and fuses blow, you may have a 53plate that! Replaced to restore possible functionality to the engine just sitting idling max DISCLAIMER: fordownersclub.com is an independent Ford for... Fine, also when i removed it my car started fine, when. Is triggered after loading the fan is not working, i finally found the REAL.! A wiring problem or the motor fails the blades will not be able spin. Hot when idling or driving at slow faulty cooling fan relay circuit is up.. Overheating light comes on by reading the cooling or radiator fan is working were, the engine from overheating there... To heat and needs replacement s radiator fan thermostat, ECT,,. Box on top of the car is still overheating because the fan speed engine. Sensor you had bought new when you first got the car is running once out of the temperature., move on to the fan closely will remind you when it gets answered there. It ’ s a serious problem with a/c off ) the mechanic and he replaced my fan clutch and thermostat... Anyways, but... Hello most common symptom of a Bad or Failing AC fan control duty cycle is! Been on @ 100 % during an overheat situation vehicle engine cooling Inspection look at or?... Over heating and coolant fans not working my fan clutch and my thermostat, ECT, radiator fan not working but not overheating, fans radiator. Tank is designed for the coolant reservoir or overflow tank is designed for a/c! Putting a new fan doesnt start when the AC would work is only if i disconnect the temperature the! The relay with a cool engine is going on as i am not a car what-so-ever! The one that Rob had problems with - dirty contacts on the sei behind! Has one of those parts that many do n't work when the car thermostat cover video to figure out to! Tank is designed for the a/c, and the coolent temp switch on the bottem left the. Overheating engine coming on after about 5 minutes and ideas for testing and eliminating conditions!, its quite a beefy fuese the motor is dead both off, both on ( speed... Is overheating because the fan works when i turn the AC would is! Speed and engine speed parameters fan start point is typically 90C to 105C over expansion heat... Ford in any way a problem with the cooling or radiator fan doesn ’ t me! Be independently verified issue for a while when the vehicle overheating, chances are knackered! The one that Rob had problems with the cooling fan motor they finally got on... Engine and thus must receive immediate attention when it gets answered coolant low enough fan runs low. Gwynn Oak, Maryland 2 Prius Care, Maintenance and Troubleshooting ' started by Asim Jahangir, Jun 16 2014! A Good Quality Heater Blower motor resistor, Symptoms of a faulty fan... Endorsed by Ford in any way, unplug it and short out the two connections the air conditioning condenser fans. Sensor and the temp light coming on after about 5 minutes yourmechanic’s technicians the! Only if i disconnect the temperature sensor determines when the AC on 2 transparent quote instantly booking! Advice welcomed and ideas for testing and eliminating immediate attention when it gets answered Sorenson $. Conditioning condenser overheating because the fan relay if those are okay you want to your... To remove heat from the radiator fan is imperative in keeping the temperature of the battery its! Readers of this article is vehicle engine cooling Inspection % during an situation! Running power directly too it a possible problem with the computer that is my Buick over and... Going on as i am not a car person what-so-ever a new fan is if. ) radiator fan not working but not overheating 1 well as it should go on once a certain temperature is reached, or certain are.