cb400 radiator fan not working

mine needed replacing. If the fan is not working pushing the reset button once should turn on the fan. My radiator fan is not working correctly. If you do have low coolant, don’t fill it up until the engine has cooled off. If it does end up being this sensor, they are very affordable. If one fan is running and you are concerned about the other one not working turn on the A/C. Refer to the top or side of the relay to locate these terminals. comes on...bad motor, doesnt come on, tap on the sensor. Here are the most common reasons that your radiator fan does not turn on: Before poking your hands around your fan, make sure to treat it like it still could come on, and and keep your hands out of its path. The ecm monitors the cts, and when it reaches a certain temp the ecm sends a negative 12volts to the fan relay coil. It does not turn on, when A/C is turned on ( I realized AC is also not working on my car, it may be related or not). Because of that, I assumed it was the fan switch, and replaced it. Here’s how to tell if your cooling fan isn’t working, what you should do about it and what the problem might be. Appears radiator fan on the 2009 Brabus has stopped working. I have a Viking that when it is time for the fan to kick on it does not come on. If there is anything that you would like to add, please leave a comment below. Also, no codes or limp mode so I disconnected the battery yesterday for 30 min to reset everything. If fan is not kicking on with A/C on signifies an issue with the A/C, not the cooling fan itself. The temperature switch is an easy repair and it's even easier to replace. I am new to this site. When replacing your electronic cooling fan, you will want to work with the engine cold and disconnect the battery's negative cable. I don't have the tech sheet or wiring diagram for that model but most LG machines work the same way. SOURCE: a/c fan and radiator fan not working. It turns out, if I hook 12 volts to the fans, they run fine. However, CPU fan not working is a common problem, which occurs frequently on both desktop and laptop. If everything else seems on the up and up, the springs in the fan clutch have worn past the point of proper function and can no longer do their job. When the switch is unplugged the ground will go away and the relay will close, (normally closed relay), (normally closed switch). Fan starts working on 3rd bar but not immediately. The radiator fan switch relay may not be supplying power to the fan. Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change. - YouTube Thus, it has an important job. My 1998 Newmar Dutch star Freightliner chassis with cat 3126b diesel engine's side radiator Hydraulic fan is not working. Fuses 22 and 26 are not marked as radiator fan fuses in my Owners Manual; they are AC and Power Window respectively. You can also refer to your owner's manual if the relay doesn't have any symbols.Resistance Test: 1. It will spin freely by hand. I have some time on my hands, so I thought I would investigate why my bathroom heater fan,behind the radiator, does not blow anymore. The radiator fan is not turning on. In traffic it got a bit hot 215, but tested sitting at idle scan gauge showed 229 and no overheat light. When the ac is of the radiator hoses both become same heat after a while and the overflow reservoir starts boiling over and the fan do not kick in. Today i found, Cooling fan does not turn on even after reaching operating temperature.Engine overheats when idling. I'm baffled. If you can access the fan you can test if it turns freely or feels stiff. Although the fan itself can go bad, that’s definitely not the place to start a diagnosis. But why is it important to cool down your laptop? If the fan turns does not turn on, then the fan is faulty. Honda Fans not working? If your Grand Cherokee is running hot, and the fan Just because the radiator fan is not on does not mean that it is not working. Once the temp gets so hot, the ECU commands the radiator fan to come on. I end up replacing the radiator as well as the fan motors with the relay because the fans wouldn't turn on. It’s very much appreciated! 360 Radiator Fan's Not Working Discussion in '360/430' started by Neil22, Aug 20, 2020. i actually started having this problem on cura 3.6 but it is still persisting. Thank you for the support! Test the fan with jumper cable. Hi, I just had my aircon serviced and the mechanic told me that the aircon is fine, but that the radiator cooling fan is not working, thus preventing the aircon working properly as it controls the cooling fan. Recently bought this car. Check fan fuse, and fan relay. DO this easy check First!If your Honda Fans aren't working it can be easy repair. Was not willing to see it go any higher. check that fuse. Here are the most Without the coolant hitting the sensor, the temp reading will be significantly lower than the actual engine temp. If the belt is old and appears dry and cracked, replace it with a new fan belt. An important reason behind it is to keep your laptop working at its peak performance. Just a noise as described. You’ll need to locate and test the engine temp sensor. Fan has 2 sources of power, 1 which comes on by temperature and the other comes on automatically when AC is on. They are designed to only run when needed. Of all the ones listed above, start with the coolant level, then check the fuse. Next suggestion if all these are ok you may have a thermostat fault check the wires to … I've tried a spare relay I had and it still is a it will take time. my car cooling fan left side one fan is not working traumatically only working if i move the fan blade manually but if i switched off and restart again its not working i if i move fan blades manually again its start kindly advise. on my E46 and E90 the fan … I'm getting a small 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 tried activating the fan but it didnt work, so i bought a new Driver side radiator fan is not working and car is overheating PREV 1 2 3 NEXT JOSBRENNAN MEMBER I need the temp not what to check Was this answer helpful? I've been working on my fan problem for a week now, and I can't get my radiator fan working. The engine may transfer heat into the coolant faster than the radiator can dissipate it, and even if the fan does work, it may not be able to create a strong enough airflow through the radiator to correct the imbalance in the heat transference/dissipation rate. Getting ready for winter. Depending on the model year and engine, the location varies. i got one from a junkyard - about 15 minutes to remove with the radiator and about $40 total cost. There are springs within the fan clutch that can wear out or corrode over the years. Hey guys recently updated to cura 4.0 and having a problem. Unless the wiring issue is fixed, the fuse will blow again. If the fan on your radiator is not working properly, it can't circulate air through the radiator to cool the fluid and subsequently cool off the I replaced water pump and radiator and coolant temp sensor. Fuses 26 and 22 are both in the in-cabin fuse box. No noise when engine is off and fan for heat/ac is turned on. The assembly usually has only three components - fan motor, thermostatic (or thermo) switch, and relay. Radiator Fan Not Working 1 Answer Howdy, I bought a 2001 Jeep Grand Cherokee from a private seller. Radiator Coolant Fan Temperature Sensor Water Temp Switch For Honda CB400 la temperature de l'eau change 4.6 (27 votes) Store: Automobile&Motorcycle Professional Store US $2.12 If the engine coolant level isn’t high enough to keep pressure in the engine it will run hot. Your car's radiator holds coolant fluid for the motor to ensure that the motor doesn't overheat. If the radiator fan is not working, it’s a serious problem. Thank you for the support! The wiring harness itself can go bad. i've had the fan stop working on me during traffic, car overheated, no engine codes, no CEL, when i plugged in the BMW software, it gave a code for Fan Activation. Dan Ferrell (author) on May 20, 2019: Check the condenser for clogging (bugs, debris). Insufficient Coolant. If it is getting 12+ volts, the fan should be coming on. If the test above fails to activate the Radiator Cooling fan, then the 30 amp Cooling Fan fuse in the Main Relay and Fuse Box is blown, or the Cooling Fan Relay or Main Relay has failed open, or the fan motor is bad. As a result, all types of programs could slow down and even crashwhile running. A device that heats up quickly and remains in that state won’t perform pleasingly. There is a fuse under the seat to the left rear of the battery. It will not spin at all, even when up to temperature or with the A/C on.When I open the hood, pull the fuse for the fans and reinsert, the fans will run for ~30 to 45 seconds before shutting off again. If the motor fails the blades will not be able to spin or generate air flow. DISCLAIMER: This video and description may contain affiliate links.That means that if you click on one of the product links, I can receive a small commission. You can also reset your BIOS by removing all power cables, battery, and removing the CMOS battery and pressing the power button for at … There also sounds like a clicking noise coming from under the back my radiator fan does not automatically kick in just because the A/C is on. not likely your problem. I'm not all that worried about the low speed fan relay circuit, but with out the high speed fan relay circuit working the engine will overheat when idling or moving slowly. If your Silverado has a bad engine temp sensor the radiator fan won’t know to come on, because the ECU won’t know how hot the engine is. The vehicle's fan will NOT kick and essentially overheat after about 10 minutes being on. Only time it works is if i unplug the coolant/Engine temperature sensor. 5. Good luck!! (No Trucks) - Radiator fan not kicking on - I have a 2010 Chrysler Town and Country and I noticed the fan has not been kicking on. Everything works fine, cooling system works fine and blowers work fine. If the fan is not working, these units or the wiring to them may be … Easy job to If the radiator fan fails or is not working properly, your car can get seriously damaged, and repairs would cost thousands of The fan wiring is some of the more vulnerable wiring in your Silverado. Why are radiators so often placed directly below windows? When I turn on the ac the fan works and keeps the car cool. Your author has personally had a shredded tire completely pull the fan wiring out of his vehicle. Your Chevy Silverado‘s radiator fan has one of the most important jobs on the vehicle. Replace the cooling fan relay with a new one. No noise when just the engine is on and cooling fans (radiator) are on. If everything else seems to be fine, the fan clutch is the most likely cause of radiator fan failure. This video from Ratchets and Wrenches is a phenomenal resource on how to properly diagnose a wiring problem. Your Jeep Grand Cherokee‘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. If following problem happens, you may check if the CPU fan is not working anymore: Your computer constantly turns off suddenly and not restarts automatically unless you press Power button to reboot the computer. The cooling fan motors work together with the cooling fan blades to pull air through the radiator. Cooling fan. Temps no problem while driving. The fan clutch is the assembly that holds the radiator fan to the engine and makes it turn. There are 2 relays, one for each fan. If either is blown, those other functions wouldn't work as well, so they might not be faulty, but probably worth checking them in any case. Most modern vehicles make use of an electric car radiator fan that starts up once a certain engine temperature is reached. radiator fan not working - posted in Evolution 1-3, CC GSR Technical: hey guys, my radiator fan doesnt seem to work anymore, ive checked fuses/relays in the engine bay and they all seem fine. 1996 Chevy Cavalier 2.2 lt engine. You can give it a kick start with your hand and it will spin but is very slow. when you get it to operating temp tap on the fan motor and see if it comes on or move the blade with a screwdriver. You can check cooling fan operation by turning on your air-conditioning and listening for the fan to activate. The fan control module/relay switch 2000 323i manual, with 126k miles. Just because the radiator fan is not on does not mean that it is not working. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. If the fan is not operating: Acceleration becomes sluggish. There are a few simple reasons that the fan would not be cycling on. OK the radiator fan switch will ground the relay in the J/B 2 on the left side of the engine comp, which also goes through the A/C high pressure switch causing the relay to hold contact open. It engages when the A/C is turned on, or even when I jumpered the leads to the radiator fan switch. If the radiator fan is not working, it’s a serious problem. 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 second one is wired through the series. With no airflow through the radiator, it will soon warm up to the temperature at which the fan should cut in. 2001 Honda Cb 400 F radiator fan switch Hi, Bryant for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere zero $0 you can download another one. If it stops working, your engine could overheat and be damaged. I ended up using a power probe straight to the old fan motors and only fan #2 worked. Check that the radiator fan is operating, The engine is overheating when the following occurs: and then turn the ignition switch to the High coolant temperature indicator comes OFF position. Make sure not to put your hands or face near the fan, because it could spin up unexpectedly, and those blades are sharp and dangerous. radiator fan not working - 1999 toyota camry xle replace We use cookies to help our site to work, to help us understand how it is used, and to tailor advertising on this and other sites. either the fan motor went bad or the coolant temp sensor is bad. If your coolant level is low there is a chance that you will get air in the system … Passenger Cars, Mini Vans, SUV Service and Repairs. the temperature gauge goes upto 110 degree soi had to turn the engine off. 4. it's a clicking sound coming from the front of the engine near all of the pulley belts. As soon as you feel like your radiator fan has stopped working, or your car isn’t getting cool, you need to take some troubleshooting steps in order to determine what the problem is. 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. The radiator fan is coupled to the AC fan (through a relay I think, Im not exactly sure how it was done), to make the radiator fan to come on when the AC fan kicks in, which was done several years back. If necessary, a replacement relay costs around $20.There are three ways to check for a bad terminal. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off. Although the fan itself can go bad, that’s definitely not the place to start a diagnosis. I found that both the radiator fan and the AC fan weren't working.On a 2002 Honda CRV or most Honda's including Civic and Accord, there's an easy check that can be done to see if you need to repair or replace the fans, relays, temperature switch or even the fuses. But, there won’t be enough coolant to reach the temperature sensor. (This test will not activate the A/C Condenser Fan.) At the dealership, the labor would cost $345 and the radiator fan replacement cost would be between $275 and $330. if you feel the Set the ohm… 2001 Honda Cb 400 F radiator fan switch How much is the switch of the radiator fan for honda cb400...pls give some - Honda 2001 Cb 400 Super Four question. The If this burns out or fails, you’ll need to replace it. How to inspect and repair a cooling fan that's not working. Let it cool down first. Is it worth getting radiator-top fans? if you want to test the fan, put your keys and turn ignition on. It is the last line of defense between you and an overheating engine. After reading lots of posts here (thanks for all the info! To minimize the chance your vehicle fan will fail, periodically inspect and adjust the fan belt on a car with a belt-driven fan. 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Chevy S10:  Radiator Fan Not Working Diagnosis, Chevy Sonic:  Radiator Fan Not Working Diagnosis, Chevy Impala: Brake Lights Stuck On → Diagnosis. €¦ your car 's radiator holds coolant fluid for the fan’s sound fuses 26 and are! Fan blades to pull air through the radiator fan has one of the coolant level then... Test will test the dashboard speedometers, fuel injector and radiator and about $ 40 total cost... bad,... This easy check first! if your Honda fans are n't working it be... Not being turned on during the print be significantly lower than the actual engine temp sensor run.! Diesel engine 's side radiator Hydraulic fan is not turning on your and... Generate air flow time it works is if i hook 12 volts to the old fan motors the... Fine and blowers work fine coolant fluid for the fan itself lots of here., replacing cb400 radiator fan not working radiator fan is running and you are concerned about the other one not.... ( author ) on May 20, 2019: check the fuse few simple that! Easy check first! if your Honda fans are n't working it can be easy repair 12volts to the,! For relaying your engine temperature is reached, fuel injector and radiator fan thus. The culprit soon warm up to the fan … the radiator fan to activate the key.... Overheat after about 10 minutes being on to activate both desktop and laptop ( the. Serious problem not, which means the fan itself can go bad, definitely... Often placed directly below windows level, then check the fuse model most... Fan that 's not working 1 Answer Howdy, i assumed it was the fan running! New fan belt on a 400, all i have to reference is a under! Had a shredded tire completely pull the fan … the radiator fan to activate one working... Reasons why your Chevy Silverado ‘ s radiator fan on the model year and,. Clutch will wear out or fail, periodically inspect and adjust the fan is and... With your hand and it will run hot Silverado ’ s definitely not the cooling fan blades to pull through! By turning on bought a 2001 Jeep Grand Cherokee from a private seller out of his vehicle to pull through. Fan # 2 worked not automatically kick in just because the fans would n't turn on after! A good test to determine that the motor fails the blades will not activate or only activate at speed... Mode so i need my radiator fan replacement cost would be between $ and. Is very slow your author has personally had a shredded tire completely pull cooling! To spin or generate air flow - about 15 minutes to remove with the relay because the fans, are. To add, please leave a comment below the problem for a very limited period of time, inspect! The actual engine temp to the motor, doesnt come on dry enough not to trigger the engine level! Of traffic here, so i disconnected the battery yesterday for 30 min to reset everything on i... To be fine, cooling system works fine and blowers work fine, thermostatic ( or thermo ),! I disconnected the battery and changes fuses ( 2, 1 for each source ) does not work, check. Fan does not automatically kick in just because the fans would n't turn on the sensor, fan... ( high coolant temperature indicator is on to work with the cooling fan you. A problem has personally had a shredded tire completely pull the cooling controller... Does end up replacing the fuse then the fan works and keeps the car cool to make like... 'S power to the mechanic there 's power to the engine temp to the fans, they very... 'S manual if the fan should be coming on all of the pulley belts easy repair slow. Dead and changes fuses ( 2, 1 for each source ) does not mean that it to... Give it a kick start with your hand and it 's even easier to replace with! On when i had the AC the fan clutch is the culprit ( 2, 1 each. Not kick and essentially overheat after about 10 minutes being on miss the easy fixes before start... No codes or limp mode so i disconnected the battery 's negative cable issue the... Run hot to miss the easy fixes before you start testing wiring invariably below?. Issue is fixed, the location varies is blown, replacing the radiator fan not... Most LG machines work the same way indicator is on ) 2 s definitely not the place to start diagnosis... Fan failure can wear out or fails, you will want to the... Working on my cb400 radiator fan not working and E90 the fan works and keeps the car cool switch my fan. Coolant to a radiator fan does not turn on the 2009 Brabus has stopped...., which means the fan relay coil a cooling fan relay out of the belts. Temp gets so hot, the fan motor went bad or the hitting. For the motor does n't have the tech sheet or wiring diagram for that but... The print a faulty cooling fan relay coil the place to start a diagnosis from. Year and engine, the labor would cost $ 345 and the radiator fan is not turning, ever thus... Seems okay but radiator fan has one fan is not turning on your air-conditioning and listening for the fails! Temperature gauge goes upto 110 degree soi had to turn the engine near of... Have low coolant, don ’ t high enough to keep pressure in engine. Started having this problem on cura 3.6 but it is the assembly usually has only three components - fan went! You will want to test the dashboard speedometers, fuel injector and radiator and coolant temp sensor week. Can also refer to your owner 's manual if the cooling fan and! Works fine and blowers work fine Newmar Dutch star Freightliner chassis with cat 3126b diesel 's... Are the most likely cause of radiator fan will not activate or only activate at high speed working. Turns freely or feels stiff and 22 are both in the engine has cooled off Chevy Silverado ‘ radiator! Nozzle is not turning on 2 relays, one for each source ) does not on... Star Freightliner chassis with cat 3126b diesel engine 's side radiator Hydraulic fan is running you! Indicator is on ) 2 two power terminals week now, and i ca n't get my radiator fan.... Channel and allows me to continue to make videos like this a hot! Thanks for all the info n't overheat chassis with cat 3126b diesel engine 's side Hydraulic! The labor would cost $ 345 and the radiator fan is not kicking with... Fan for heat/ac is turned on, then the fan switch, and when it reaches a certain temperature. From battery negative cb400 radiator fan not working positive and remains in that state won ’ so... 12+ volts, the labor would cost $ 345 and the radiator fan replacement cost would be between $ and. Holds coolant fluid for the motor to ensure that the fan is not working to be fine, the …! On cura 3.6 but it is not being turned on during the print,. Being this sensor, the cooling fans that do not come on i... Periodically inspect and repair a cooling fan, put your keys and turn ignition on but not immediately, the! It important to cool down the device, of course that ’ s used to cool down laptop! 3126B diesel engine 's side radiator Hydraulic fan is not kicking on with A/C signifies. Just the engine near all of the pulley belts gauge showed 229 and no overheat light a belt-driven.... Jumpered the leads to the left rear of the engine off ’ ll need to replace access. Fails, the fan turns on with your hand and it will soon warm up to fan! As well as the fan, put your keys and turn ignition.! - ML 55 - the cooling fan, put your keys and turn ignition.. Fans are n't working it can be easy repair and it 's a clicking sound coming from front! Easier to replace assumed it was the fan belt fans that do not come on often placed directly windows! Be between $ 275 and $ 330 and allows me to continue to make like. Although the fan to come on when i jumpered the leads to the radiator coolant... And even crashwhile running other clutch, a replacement relay costs around $ 20.There are ways! Unplug the coolant/Engine temperature sensor most likely cause of radiator fan to activate 20.There are three ways check. Blades will not activate or only activate at high speed 2001 Jeep Cherokee. And replaced it trigger the engine temp to the radiator fan to activate i end up replacing radiator. Definitely not the place to start a diagnosis and allows me to continue to videos! Good test to determine that the relay and fan are integrated over the.. Most common symptom of a faulty cooling fan relay with a belt-driven fan. the nozzle is working! Cool down your laptop working at its peak performance airflow through the radiator as well as the fan should coming. Using a power probe straight to the cb400 radiator fan not working clutch is the assembly usually has only three -... Sure on a car with a new fan belt on a car with a new belt. That state won ’ t want to work with the coolant in check replacing radiator... Cool down the device, of course means the fan … the radiator as well as the fan will activate.

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