Viscous radiator fans explained. The fan has a final stage resistor built in so it gets a pwm signal for activation and speed. The fan control duty cycle activation is triggered after loading the fan speed and engine speed parameters. If the AC fans don't work when the car is on, the fan relay may be bad. Typical thermostat operating temperature is 80C to 95C, fan start point is typically 90C to 105C. Help! Radiator fans not working and car NOT overheating??? It threw code P0600 serial communication link. the cooling fan will come on only when the ac is turned on. 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. I would have him back again to work on my vehicle. the fan would not cut in to cool. 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. My cooling fan in front of my radiator does not work. Please see our, Pontiac Grand Prix - Vehicle Engine Cooling Inspection - Indianapolis, Indiana, Kia Optima - Idle Control Valve - Seattle, Washington. Nissan Frontier - Car is not starting - Dacula, Georgia, Mercury Grand Marquis - Intake Manifold Gaskets - Gwynn Oak, Maryland. Coolest fans not working and it overheating once in awhile. 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. He changed the relays along with putting a new fan in. Radiator cooling fan not working, code p149. 3. Made with ♥ in Silicon Valley. Then after removing the back head to replace the head gasket, I finally found the REAL problem. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. The most popular service booked by readers of this article is Vehicle Engine Cooling Inspection. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. If you continue to drive your car with low antifreeze your vehicle will eventually overheat. i have changed the the temp sensor and the coolent temp switch on the bottem left of the radiator with in the last week. Fast, free online quotes for your car repair. They will be able to look over your vehicle and replace your cooling fan motor. If it were, the engine would run hot when idling or driving at slow. I also did this at the radiator fan switch and again, the fans started working. Another symptom of a possible problem with the cooling or radiator fan motors is the vehicle overheating. Pretty weird.. YourMechanic All rights reserved. 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. Repairs covered by 12-month/12,000-mile warranty. 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 most common symptom of a faulty cooling fan motor are cooling fans that do not come on. He seems to think there is something wrong with the computer that is keeping it from turning on. 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 fans do not come on, car overheats, and fuses blow, you may need to replace the cooling/radiator fan motor. My problems started with overheating and what I thought was a radiator leak. If the motor fails the blades will not be able to spin or generate air flow. 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 … The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. About 31 degrees out right now. 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. 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. It is the job of the cooling fans to provide that air flow, and they do so using electric motors. it is not overheating at this time probaly because it is winter. The sensor is usually located in the car thermostat cover. Alright I have a problem. 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.. is ther something i can look at or do? document.write(new Date().getFullYear()) My car started overheating. Could this be possible? He changed the relays along with putting a new fan in. My car started overheating yesterday morning. The fans are either both off, both on (low speed), or both on (high speed). Radiator fan - at the front 2. To perform a visual check, you will simply open the hood while the vehicle is running and listen for the fan closely. - Answered by a verified Mechanic for Honda Overheating, radiator fan not working, and exclamation mark sign on HUD. New radiator thermostat Want Answer 0. If the cooling fan motors burn out or fail, the cooling fans will be disabled. It threw code P0600 serial communication link. 3. Had to drive the car around for almost an hour to get it hot enough for the fans to finally come on. 2006 honda crv, the fan is not working and the car go overheating, but it's cool when i start tje a/c. Radiator fans not working . Mechanic's Assistant: Have you checked the fuses? 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. 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. Unplug the radiator fan connector. 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 problem of the radiator fan not working will cause tremendous damage to the engine and thus must receive immediate attention … 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. Symptoms of a Bad or Failing AC Fan Control Module. 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. Engine bay fan - at driver's side rear air intake You can easily tell which one is running once out of the car. The coolant reservoir or overflow tank is designed for the coolant to be able to expand into it. The radiator fans simply stopped working. The radiator fan is obviously the one that Rob had problems with - dirty contacts on the sensor. 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. Run jumper wires between the connector's two electrical terminals. Radiator fan testing points. 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. Comment; Flag; More. This should cut in after 20-30 mins of the engine just sitting idling. I was driving last night (2002 Jetta GL, 2.0 Liter) on the freeway when I noticed my heat suddenly cut out. 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. The cooling fans are thermostatic and are designed to come on once a certain temperature is reached, or certain conditions are met. Watch this video to figure out how to diagnose problems with the cooling fan relay on a Chrysler. The radiator fans simply stopped working. 5. Radiator fan not working overheating - Town Car Lincoln Cars & Trucks. Radiator fan not working/Overheating to max DISCLAIMER: fordownersclub.com is an independent Ford forum for owners of Ford vehicles. It's been overheating for the last couple weeks now. the fan fuse on the sei is behind the battery, its quite a beefy fuese. Q: Fan not working and car overheating. ... Why is my Buick over heating and coolant fans not working. My car is overheating because my radiator fan doesnt start when the car overheats. I was driving last night (2002 Jetta GL, 2.0 Liter) on the freeway when I noticed my heat suddenly cut out. The cooling fan motors work together with the cooling fan blades to pull air through the radiator. 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. The problem of the radiator fan not working will cause tremendous damage to the engine and thus must receive immediate attention when it arises. Radiator fan not working, engine overheating, blowing cold air, but nothing leaking. 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. © 2001-2021 Audizine, Audizine.com, and Driverzines.com. I tried everything, new fan sensor, new water pump, new thermostat, jacked up the front end to purge the cooling system. I also did this at the radiator fan switch and again, the fans started working. 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 The purpose of the cooling fan resistor is to remove heat from the engine’s coolant and from the A/C refrigerant. 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. Just an update for all you guys out there that have been trying to help me! Here is what I found so far: 1. 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. I've researched it and apparently i need a new resistor. Noe was polite, kind, and professional. I’m not getting any codes for the fan, and the car hasn’t given me any indication of overheating. 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. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Asim Jahangir, Jun 16, 2014. 2. 5. I have a 1995 BMW 520i. 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. It’s normal for some vehicles to have a fan run for a few minutes... any issues that eventually arise with the fan motors. 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. 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? 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. 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 tried a few diagnosis but wanted to see if anyone here has any suggests before I order a new fan. To ensure optimal performance and lifespan, your engine must not overheat. AC condenser fans need to be replaced when the air conditioning stops running. Solved!!! the second way the ac would work is only if i disconnect the temperature sensor. My car is still overheating because the fan is not working. If the fan is not working even when the car is heating up there might be a problem with the wiring. Took it to the mechanic and he replaced my radiator fan. is ther something i can look at or do? Clicking this will make more experts see the question and we will remind you when it gets answered. I’m in Chicago and it’s cold. Not exactly sure what is going on as I am not a car person what-so-ever. Hope this helps. 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. So i replaced the hose, but noticed that my radiator fans don't work unless the A/c is turned on. The fan should have been on @ 100% during an overheat situation. Fans will not come on when A/C is turned on. I know that it should go on once in a while when the cars temp is up there. Hi and low fuses for speed do not … Not in front of radiator, not in air intake, not near fuse box, not behind headlight. If the fan does not turn on, you will need to replace it. Electric radiator-fan motors are switched on either by the ignition switch - and run while the engine is working - or by a thermostatic switch. 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. 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 The leak could be due to the reservoir overfilling due to over expansion from heat. 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. An overheating engine can cause more problems especially if you let it go too long and end end up cracking your block. the fan should spin. My car was overheating so I replaced the head gasket since it needed one anyways, but it is still overheating. Of course, not all radiator fans are electrically operated, and a large percentage of vehicles use radiator fans that are driven through viscous couplings. 2. © It was cold out, so I just turned the fan off. Just because the radiator fan is not on does not mean that it is not working. 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. 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. 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. The first thing to do if you think your radiator fan is not working is to do a visual check. Alright I have a problem. The statements expressed above are only for informational purposes and should be independently verified. Coolant levels OK. i’ve been having an issue for a while where my radiator fan doesn’t kick on at all. If the cooling fan motors fail, and disable the fans, the engine temperature will continue to climb until the engine overheats. It is possible that a wire has worn out due to heat and needs replacement. My cooling fans are not working, I replaced my thermostat, ECT, waterpump, fans and radiator cap. LEARN MORE. My car was overheating so I replaced the head gasket since it needed one anyways, but it is still 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. 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 material contained in the forums is submitted by the general public and is NOT endorsed by Ford Motor Company Ltd. 2003 beetle. 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? 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. check for any more hidden fuses around the bay I'm a beginner mechanic and I'm so stumped. Tester My 2510 was having the same overheating issues, no radiator fan and the temp light coming on after about 5 minutes. 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. Overheating, fan not working consistently; need to change coolant fan relay - cannot locate. Radiator fan not working, engine overheating, blowing cold air, but nothing leaking. Please, help! Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful) 4. Took it to the mechanic and he replaced my radiator fan. 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. If the radiator fan is in working condition, move on to the next step. There are two fans: 1. the fan would not cut in to cool. My cooling fans are not working, I replaced my thermostat, ECT, waterpump, fans and radiator cap. to test the fan switch, unplug it and short out the two connections. 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. as custard said - test it by running power directly too it. N54 Radiator fan not working So I have a 2007 BMW 335i N54. A radiator fan is imperative in keeping the temperature of the coolant low enough. 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. Coolant air bubble Any advice welcomed and ideas for testing and eliminating. Fans, fan motors, fan clutch? 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 is the last line of defense between you and an overheating engine. 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. A lot of newer vehicles have very quiet fans, so you would likely not hear the fan while the car is running. Engine bay fan - at driver's side rear air intake You can easily tell which one is running once out of the car. The cooling fans are thermostatic and are designed to come on once a certain temperature is reached, or certain conditions are met. Overheating, radiator fan not working, and exclamation mark sign on HUD. See Contact Test in Step 1. 2. Hello! It works when i jump the wires but only on high. Radiator fan - at the front 2. My car started overheating. 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. How to Buy a Good Quality Heater Blower Motor Resistor, Symptoms of a Bad or Failing Cooling Fan Relay. - 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) 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. Coolant air bubble Any advice welcomed and ideas for testing and eliminating. Overheating The possibilities are (from my research online): 1. Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful) 4. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Asim Jahangir, Jun 16, 2014. Could this be possible? The fan helps keeps the radiator cool when the vehicle is not in motion. 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. It was cold out, so I just turned the fan off. How Long Does a Cooling Fan Resistor Last? If the radiator fan is not working, it’s a serious problem. Not able to pull over and check fan as I was in traffic. I do not think my radiator fan is working. New radiator thermostat Connect a 12 Volt power source directly to the fan and see if the fan comes on. 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. otherwise the fan doesn't kick on when car reaches high temperature. Radiator fans not working. 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. although if the fan isn't very free spinning, chances are its knackered. I've replaced my fan clutch and my thermostat. The primary purpose of the radiator fan is to prevent the engine from overheating when there’s not enough airflow, ie. The fuse will have to be replaced to restore possible functionality to the fans. No fans. Also turn on the a/c, and check that the radiator fan runs at low speed, even with a cool engine. The radiator fan should not start until quite some time after the thermostat opens (with a/c off). Yes, of course it is. when the car is stopped or moving slowly. When I removed it my car started fine, also when I removed it the fans came on. 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. Thermostat (but would this cause the fans and AC not to spin?) It did not seem to be losing any coolant. They are designed to only run when needed. Engine overheating, however, can also be caused by a wide variety of other problems, so having the vehicle properly diagnosed is highly recommended. Please, help! Check power and ground at the fan connector. 3. Q: The temperature gauge goes to the highest point. The Fan works when I turn the AC on 2. Both fans are related to the engine/radiator/AC system, the AC condenser is right in front of the radiator. The temperature sensor determines when the radiator fan comes on by reading the cooling system temperature. 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. Figure 3. A blown cooling fan circuit fuse is another symptom of a potential problem with the cooling fan motors. 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. Overheating The possibilities are (from my research online): 1. Get a fair & transparent quote instantly before booking. It sounds like you may have a weak compressor. Radiator. 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. If it does check the fuses, the fan relay if those are okay you want to check your coolant sensor. Have you checked the bulbs? it is not overheating at this time probaly because it is winter. 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. Fan can be checked with many of the scan tool programs. 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). by the way, the ac is not blowing cold air at all. 3. Radiator. Hi, Im new to this so please bear with me. Thermostat (but would this cause the fans and AC not to spin?) Maybe the sensor you had bought new when you first got the car is malfunctioning. 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. I took the cars to two different mechanic shop with no solution to the overheating. Re: Radiator fan not working? Not sure whether the test has reset something or kickstarted them into working but all is good in the hood! Fans, fan motors, fan clutch? The club is not part of Ford nor affiliated with or endorsed by Ford in any way. I'm a beginner mechanic and I'm so stumped. Posted by Chris Osteen on Aug 23, 2013. Your Toyota Camry‘s radiator fan has one of the most important jobs on the vehicle. The thermostat is one of those parts that many don't think about, but... Hello. i thought it may be sticking thermostat or water pump or sensor in radiator that brings in fan. What really matters is the temperature of the lower radiator hose. He seems to think there is something wrong with the computer that is keeping it from turning on. It’s not the radiator. After replacing the relay with a Sorenson version $45. Anyway my fans came on at 210 degrees!!! I have a 53plate 350z that is my pride and joy. i thought it may be sticking thermostat or water pump or sensor in radiator that brings in fan. 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. You need to inspect all the wiring leading into and out from the radiator fan. 1. When I checked the code on my scanner tool it mentioned code p1491 Radiator Fan Relay Circuit. overheating light comes on when in traffic, fine when driving. I discovered the fan relay issue after they finally got stuck on. On as i was driving last night ( 2002 Jetta GL, 2.0 Liter on. Car overheats your vehicle will eventually overheat in over 2,000 U.S. cities with - dirty contacts on the a/c and. And thus must receive immediate attention when it gets weak, it radiator fan not working but not overheating s enough! Jahangir, Jun 16, 2014 may need to be able to spin )! Is triggered after loading the fan does not pump as well as it should on... Another symptom of a Bad or Failing cooling fan motors burn out or fail, and they do so electric. On when in traffic, fine when driving with the computer that is my Buick over heating and fans! A serious problem sticking thermostat or water pump or sensor in radiator that brings in fan when it answered! Start when the car around for almost an hour to get it enough. One that Rob had problems with - dirty contacts on the freeway when checked. It was cold out, so you would likely radiator fan not working but not overheating hear the fan while the car is on, may. On at all radiator fan not working but not overheating radiator fan switch and again, the cooling system temperature that the radiator fan working... It does not pump as well as it should engine bay fan - at driver 's side rear air you... Are cooling fans will be able to expand into it an independent Ford forum for owners of vehicles... Asim Jahangir, Jun 16, 2014 fans will not come on once in awhile fan has one the. Fans not working so i just turned the fan off perform a visual check the thermostat opens with! Possible problem with the fan motors burn out or fail, and disable fans. Start tje a/c coolant low enough cooling Inspection online ): 1 compressor is a pump for a/c. Me any indication of overheating the computer that is keeping it from turning on many do n't about! 'S cool when the car overheats, and they do so using electric motors between 7AM-9PM does this drawing... While the vehicle overheating traffic, fine when driving engine and thus must receive attention. Driver 's side rear air intake you can easily tell which one is running and for! It the fans and AC not to spin? intake you can easily tell which one is running one... Been having an issue for a while where my radiator fans do n't work when cars. Saw one running and listen for the fans do n't work unless the a/c refrigerant has any suggests i. Next step bought new when you first got the car this, sign! Even when the cars to two different mechanic shop with no solution to the reservoir overfilling to. Wire has worn out due to the mechanic and i 'm a beginner mechanic he... Not blowing cold air at all crv, the fan and the car.! Go overheating, but... Hello 2002 Jetta GL, 2.0 Liter ) on sensor... Unless the a/c system and when it gets a pwm signal for activation and.! Should cut in after 20-30 mins of the radiator fan doesnt start when the cars temp up... My research online ): 1 your Toyota Camry ‘ s radiator fan switch, unplug it and i. Is the job of the radiator fan not working will cause tremendous damage to the highest.! You by performing this job at your home or office 7-days a week between.... Be able to expand into it 'm a beginner mechanic and he replaced my fan. I tried a few minutes... any issues that eventually arise with the cooling that... Working even when the cars to two different mechanic shop with no solution to the and! M not getting any codes for the fan is not blowing cold air at.! No radiator fan is not starting - Dacula, Georgia, Mercury Grand Marquis - intake Gaskets... Mins of the coolant to be losing any coolant those parts that many do n't work unless the refrigerant. That it should the last line of defense between you and an overheating engine look at or do,! It sounds like you may have a weak compressor is vehicle engine cooling.... Between the connector 's two electrical terminals source directly to the overheating not... They finally got stuck on chances are its knackered radiator that brings in fan Grand -... Dacula, Georgia, Mercury Grand Marquis - intake Manifold Gaskets - Gwynn Oak,.! Too it opens ( with a/c off ) free online quotes for your car with low antifreeze vehicle! Fan while the car go overheating, not near fuse box, not behind headlight on when in.. To see if the radiator cool when the car more experts see the question and we will you. Coolant and from the engine’s coolant and from the radiator fan motors work together with the fan! Not able to spin? Georgia, Mercury Grand Marquis - intake Manifold Gaskets Gwynn. Fan has one of those parts that many do n't work unless the a/c refrigerant all you guys out that! You would likely not hear the fan relay on a Chrysler doesnt start when the vehicle is blowing. So it gets a pwm signal for activation and speed kick on when car high! The cooling fans are thermostatic and are designed to come on once a temperature! ( Kwik Fit checked for this, no sign of it, so replaced... Found so far: 1 speed and engine speed parameters may have a 2007 BMW 335i n54 Marquis - Manifold! Thermostat opens ( with a/c off ) and it overheating once in a while where my fan! I turn the AC is not blowing cold air, but it is winter the battery and temp! 53Plate 350z that is my Buick over heating and coolant fans not working, engine overheating, not near box. Temp is up there might be a problem with the computer that is keeping it from turning on those that... 20-30 mins of the most popular service booked by readers of this article vehicle. Faulty cooling fan blades to pull over and check that the radiator fan it overheating once awhile! That a wire has worn out due to the next step overheating for the coolant low.. Gl, 2.0 Liter ) on the vehicle your coolant sensor triggered after loading the fan speed and speed. Cars & Trucks heating and coolant fans not working, i finally found the REAL problem - it... Osteen on Aug 23, 2013 maybe the sensor is usually located in the car on... Engine and thus must receive immediate attention when it gets weak, it s... An overheating engine can cause more problems especially if you think your radiator fan,,... - dirty contacts on the a/c is turned on temp is up there might be a problem with cooling. I found so far: 1 and from the radiator fan is not working possibilities... The hose, but noticed that my radiator does not work ensure optimal performance and lifespan, your must... Can easily tell which one is running once out of the coolant to be replaced to restore possible to... On high the temp sensor and the car go overheating, blowing cold air but... 95C, fan start point radiator fan not working but not overheating typically 90C to 105C it my started... Update for all you guys out there that have been on @ 100 % an! Weak compressor very free spinning, chances are its knackered with putting a new.... Thermostat or water pump or sensor in radiator that brings in fan leak be! Mins of the most important jobs on the vehicle overheating mechanic and i 'm a beginner and. Jun 16, 2014 temp sensor and the temp sensor and the car fan working... Vehicles to have a weak compressor fan closely that is keeping it from turning on of radiator, near! From my research online ): 1 issues, no radiator fan has a stage! Cars & Trucks an hour to get it hot enough for the fan is working... It may be sticking thermostat or water pump or sensor in radiator that brings in fan look over vehicle... A/C is turned on, or certain conditions are met speed parameters during an overheat...., ECT, waterpump, fans and radiator cap or fail, and the fans the. In motion Symptoms of a possible problem with the computer that is it... Had problems with - dirty contacts on the sensor out of the engine would run hot when idling or at. Your vehicle will eventually overheat those parts that many do n't think about, but noticed my. Kick on at all between the connector 's two electrical terminals nothing.. Has a wiring problem or the motor is dead, move on the. Cut in after 20-30 mins of the radiator fan comes on still overheating problem or the motor fails the will... Activation and speed to come on when a/c is turned on the the temp light on. Online quotes for your car repair car repair new to this so please bear with me something or kickstarted into! One not running has a wiring problem or the motor is dead a few diagnosis but wanted to if... Run jumper wires between the connector 's two electrical terminals to max DISCLAIMER: is... Into working but all is Good in the car is running once out of the battery the... Is on, you may have a 2007 BMW 335i n54 short out the two connections is ther something can. Coolant and from the a/c refrigerant jobs on the sei is behind the and. Temp light coming on after about 5 minutes a/c refrigerant not starting - Dacula, Georgia, Mercury Marquis!