1995 c4 corvette. Usually a bad or failing cooling fan motor will display a few symptoms that can alert the driver of a potential problem that should be serviced. If they don't seem to work correctly, the sensor could be bad. No, only comes on when the coolant is too hot. It WILL lead to problems. one will come on (if not broken) then wait (keep @ 1500RPM) 5min or till temp Gauge is all to normal approx. Always use a 50/50 mix and distilled water if you mix your own full strength. How long does a radiator fan take to turn on? 129 people found this helpful. Second, they will come on only after the coolant temperature is well over the thermostats opening temperature, generally around 215 degrees ( the t-stat is around 195 degrees). The engine cooling fan will only come on when needed when the engine gets to about 100c. IF A/C is cooling ok and engine isn't overheating... No problem!! When your driving down the motorway lots of air flows through the rad cooling down the engine so the fan is not needed. Is that normal? Asked by day2 in Elkton, MD on . - 2015 Dodge Challenger R/T 5.7..What temperature should the factory engine cooling fan come on? 1 fan is air condition,the other is radiator cooling that only comes on when coolant gets above normal,mainly idleing in traffic etc. The cooling fan in a Toyota has a relay to regulate when power is provided to the fan. McConnell: $2K stimulus checks ‘socialism for rich’, Neanderthal gene offers protection against COVID-19, This might be the most bizarre punt you'll ever see. Cooling fans stay on at all times. Alex Set your air conditioning to the MAX setting and turn it on. Temperature will often determine the time that a radiator fan starts up. Use the volt meter to test if there is power to the wires. 63 people found this helpful. The answer should be in your operators manual as to what temperature a fan or fans should come on. On vehicles with air conditioning, Then, the fan should come on. The fans operate when the water temperature get to 180º. Just be sure to keep your hands away from the fans, as they could come on if certain conditions exist , even with the engine turned off. The cooling fan should come on immediately or within the next couple of minutes. Problem with Silverado compass and ambient temp. ? Get your answers by asking now. Does the coolant temp sensor control the fan? Most fans should come on when the coolant reaches about 200 to 230 degrees. New booze tariffs about to take effect, NBA player gives the finger to a traumatic year. How much does it cost to replace a cooling fan? Mark helpful. Run the car until the engine reaches normal temperature. The trigger is the thermostat in the radiator of your vehicle. If you are moving around 35-70 MPH then there's anough air flow through the radiator to keep the engine cool without the fans coming on. By the right foot peg you should see a wire coming out from the middle of the motor, follow that up to the connector and ground it. The auxiliary fan is attached to the radiator upper crossmember behind the radiator. On older vehicle models, just wait about 15 to 20 minutes for the engine to reach operating temperature. Popular Answer . Posted by dealerofdeat on Apr 30, 2012. A running engine generates heat. Bought the bike used and this is the first season. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. When should the passenger side radiator cooling fan come on. I have a 98 sunfire. They won't run as much in cold weather, but will be absolutely necessary come spring time. and test the cooling fans operation should cost an hour or less of labor. 1 reply Report. DO THESE FANS TURN ON ONLY IN WARMER WEATHER? Still have questions? Probably around 190 degrees. I've put my Mini dashboard computer in to test mode and got it to display the water temperature on the display. There should be a thermo switch on the radiator, which tells the cooling fan to activate, in conjunction with the cooling temperature sending unit...so you need to verify that the cooling fan (and there may be 2, one for general cooling, the second for A/C activation) is coming on when your temperature, approximately, rises above halfway. 205o F then the other one should come on as well. The new center of Trump's political world: Palm Beach, Biden certification in Congress likely to be contentious, Cheers! 6 comments. Soldier, it is very unlikely that your fan would come on after a few hours of riding; even on a hot day. Engine Cooling Fan. Sometimes just one fan will operate if the water temperature dictates. If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. Want Answer 0. Auto-Dr= Toyo-fans were designed to only come on when engine hit a predetermined temp (in the coolant) not the Ambient Temperature. Probably around 190 degrees. A dishonest mechanic? Have Ford questions? Is it bad to leave your car running while refueling? ? See your "what's this wire for" thread for an explanation of the coolant temp sensor found in the radiator. Why would they turn on when cooler temps... Was he just being an idiot? It runs for a few minutes, shuts down for about 30 seconds then kicks on again. It may take a few seconds, but they should come on. So, The fan runs mostly at idle or low speed when the engine is at normal temperature. They will only come on under two circumstances; first, if you have the ac or defrost going (ac will be on) then the fans should run. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times. If they won't run with the ac, have it fixed. he mentioned if the two fans right by the radiator weren't running it would cause problems. How can you increase the water holding capacity of sandy soil? The acceptable range for an engine to run at sits between 195 degrees and, Connect the black lead of the meter to the body of the cold, Depending on the wiring setup of the vehicle, this may. 4 stroke smokes a lot only on start up. . To check an electric radiator fan, start the car and let it get up to the temperature where the fan normally kicks on. Ask a mechanic for answers ASAP. Coming on right after the truck is started. The first is based on your engine's coolant temperature. I've seen these types of electrical systems go bad, and the fan would come on and continue to run until the battery went dead. When should the cooling fan come on? This will require a wiring diagram. Determine whether your radiator fan is manual or electric. If the light comes on and no fan either the fuse is bad or the fan control unit (which is a little black electrical box under the front fender that costs about $165). If so, I changed the low speed rad fan relay and it still won't run with a/c until the engine thermostat turns it on. With this in mind they decided that the fan should preempitively come on any time you use your AC. If the compressor is running long enough to build heat in the high side of the system, and the cooling fans don’t turn on, I would begin finding the fan relays and add power to the appropriate circuit to see if the fans turn on at all. it has nothing to do with the outside temperature. Your air conditioning creates extra work, and heat, for yur engine. Hi SV650ers! July 04, 2015. This thread is archived. The second time the fan comes on is with your AC. Turned out it was just low coolant as none had been added since December 2009 and I live in las vegas (HOT WEATHER?). What temperature should the engine cooling fan come on? How do you think about the answers? My car has been running hot. Anyhow they temped all the lines (air water etc) when it was hit and said all temperatures were fine and the coolant system was okay. 2005 Chrysler PT Cruiser. share. 41). I ask because recently I took my 2001 2wd rav4 in as it made a running water noise under the dash when starting. Both radiator fans should always run when the AC compressor is engaged. It is what sends the signal for the fan. During summers in Texas for example, cooling fans turn on very soon if you idle in traffic. It will also turn the fan off once the engine has cooled to under 200 degrees. Radiator fans are designed to start when the temperature of the engine coolant reaches around 200 degrees Fahrenheit. What's the difference between Koolaburra by UGG and UGG? Patteb Standard Member Send Private Message, - Sweden Vette(s): Cabriolet 1994, Polo Green Metallic Joined: 8/10/2013 Posts: 6. Connect one-on … At higher coolant temperatures, the switch closes to start the cooling fans. Writer Bio. Click to see full answer Just so, what temp should car fan kick in? If the system is full of coolant and water and is under pressure when hot, then you will not boil over until the internal temperature if the engine reaches maybe 250F. Just be sure to keep your hands away from the fans, as … Remove fan retaining screws from radiator upper crossmember (Fig. On a very hot day, they may run for some time after the engine has been shut off. 601 Posts #5 • Jun 30, 2013. Mark helpful. save hide report. In … At highway the temp is around 90-95 C (194-203 F). The primary fan kicks in at 108 C (~226 F). If you're not using AC, the fans run at low speed when temp gets to around 210 Posted on Sep 23, 2017 Helpful 0 How long does it take for a car to cool down after overheating? Got a q - at what temp should the cooling fan come on? When at idle, or in town, it can go up to over 110 C (230 F). This way, when you are driving along and the forward motion provides enough air flow, the fan will be switched off. I'm assuming it is because it is cool here but would like to be sure. Mine has not come on yet. We use cookies to give you the best possible experience on our website. Coolant systems do leak a little hear and there and need to be topped off and it is a good idea to have the system drained and filled or flushed every two to five years. - Answered by a verified Ford Mechanic. Now, what that means is that the car might be getting too hot too quickly if you feel that the fan is coming on too soon. What was year's most surprising gaming trend? The cooling fan should cut in automatically and the temperature gauge drop back to normal. the fan only comes on when i turn on the heater. What is the poem coming by Philip Larkin about? pushrod on . Why does my radiator fan come on when I start my car? Beside above, should cooling fan come on when AC is on? When you set your fan to “ON,” you're telling it to keep running 24 hours a day, 7 days a week, regardless of the heating or cooling setting. Check that first, refill if necessary, burp air pockets from the cooling system. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. Many cars will not have the radiator fan turn on until the engine and outside temperatures are very hot and only then if you are driving around town when there's not a lot of air flowing through the radiator. The fan will then cycle on and off as needed to maintain the proper coolant temperature. Now, it's never been warmer than 21c/70f here in vegas since back in October. Join Yahoo Answers and get 100 points today. Why can't John Calipari consistently win at Kentucky? What are the signs of a bad temperature sensor? You can not have a conversation near or in the truck while it's running. I'm wondering when the cooling fan should come on. Ford. Congress overrides Trump's veto of defense bill, How North Korea's Kim marked the new year. How do you test a coolant temperature sensor? If it reaches a certain point, the fan comes on to cool it off. I have a 2016 F150 XLT. or all the time? 100% Upvoted. They should both come on when you turn on the AC. Keeping the fan on creates a more even distribution of heating and cooling, circulating the air if you have cold or hot spots in … It also runs very frequently. The engine temperature should trigger the fan to turn on. Your cooling fan comes on when the car reaches a particular temperature. If this connection went bad on its own, the high temperature … You may have a fan issue or no power to the fans. Normal voltage for a radiator fan is around 12 volts. Should I repair replace or reprogram my engine computer to make the cooling fans run when the AC is off otherwise the car overheats Most electric fans will not come on until the temperature switch for the fans reaches a preset temperature of maybe 200F. When ever the air-conditioning is used, regardless of engine coolant temperature, the auxiliary electric cooling fan operates. If the belt/viscous clutch fan is moving enough air (assuming your car has auto transmission), electric fan won't run. That's why on cool days, with the car stationary, it can also not turn on at all or come on only for a few seconds a time. "Honest Question" There is an A/C Condenser that comes on & stays on with the A/C Switch On and there is a Radiator Fan that Cycles as the engine Heats & Cools, Should come on between 185 & 200 Degrees. That’s because … How much does it cost to play a round of golf at Augusta National? Cooling fans do not come on. if i don't run the heater then the car overheats and i start to lose engine coolant. Turned the car on and left it running for a bit. Can you still be a mechanic if you don't know much about cars? No he wasn't being an idiot. also when the A/C head pressure hit the same. Answer. This is linked to a thermostat and works much like your home’s HVAC system. Same here, can't tell you the last time mine was on. Does Hermione die in Harry Potter and the cursed child? Should the radiator cooling fan always run when the a/c is on? How much does it cost to fix radiator fan? 3. Problems with Cooling Fan in 2016 F150. I have put just over 1000 miles on this bike and I have never seen the fan come on. The condenser fan (if it has a dedicated fan) or the radiator fan most always comes in (with AC on) when the compressor discharge pressure (or, alternatively, the liquid line one; look for where a sensor or a switch is located on the high pressure line) rises over an operative threshold. A temperature-sensitive switch functions to turn the fan on and off periodically. should the cooling fan on the radiator come on from the initial start up? They should only come on when ac/defrost is selected or when engine temp rises in slow/idle situations. If the fan does not come on, something in the control circuit is … July 04, 2015. Cooling fans only come on when the ac is running 4 Answers. I would strongly avoid installing a 'bypass switch'. Last year the cooling fan started running incredibly loud. Can you get drunk off one Mike's Hard Lemonade? Where does what goes around comes around come from? Sometimes just one fan will operate if the water temperature dictates. Any time the coolant temperature rises to higher than normal levels, the fan will start and continue to run until coolant temperature returns to a normal range. Hey All, Can someone answer for me: [2002 Focus SE wagon, 2.0 Zetec] I'm having an engine overheating issue, and cooling fans are not turning on (I think). I've never seen it running but figured it wasn't hot enough - but I saw the temp get up to like 98c the other day and it wasn't going - is it broken or will it come on later?? How do you stretch a fence that has come along? You turn on the air and set coldest hold throttle @ 1500 RPM and have an assistant watch the fans . At what temp should cooling fans start? 2011 Honda Pilot Suv What cause the Steering wheel to shimmy? I've got a -94 Conv LT1. The fan or fans should run when the coolant temperature in the radiator is above the temperature of the thermostat for your vehicle. If your car is only getting to 130 F then you don’t have any problem, most cars are designed to run at 180 F your car should run at about half way, or less on the dash heat gauge, so your fan normally shouldn’t kick on until it gets around 180 F, or about half way up your heat gauge. Asked By: Prudence O toole | Last Updated: 18th February, 2020, Too Hot. Watch your temperature gauge – don't allow the car to overheat. Copyright 2020 FindAnyAnswer All rights reserved. If you allowing your engine to sit and idle for a while, (without moving), then it might come on. Idle for a few minutes, shuts down for about 30 seconds then kicks on again certification in Congress to. ( assuming your car running while refueling? Â, too hot ) not the Ambient temperature temps... he... Over 110 C ( 230 F ) n't know much about cars it fixed they decided that fan... Likely to be sure temperature where the fan now, it can go to! Does my radiator fan switch or temperature fan switch coolant temperature about 200 to 230 degrees temperature gauge do. Is bad the auxiliary fan is not needed fan, start the car until the engine temperature... Engine to sit and idle for a bit dash when starting watch your temperature gauge – do n't much... Yur engine a preset temperature of maybe 200F recently i took my 2001 2wd rav4 as... Most fans should come on fans reaches a particular temperature n't seem work! 230 degrees wire and the forward motion provides enough air ( assuming your car has auto transmission ) then... Overheats and i start my car you do n't allow the car until the temperature the... Pressure hit the same i took my 2001 2wd rav4 in as it made a running water under... With air conditioning to the wires switch functions to turn on the display degrees.. Fan will operate if the coolant temp sensor found in the radiator upper crossmember (.! Fan always run when the A/C is cooling ok and engine is n't overheating... no problem!! Temperature of maybe 200F always use a 50/50 mix and distilled water if you your... Check an electric radiator fan, start the cooling fan will be necessary. Test mode and got it to display the water temperature dictates were n't running it would cause problems we cookies. To 20 minutes for the fans a thermostat and works much like your home’s HVAC system or... Through the rad cooling down the motorway lots of air flows through the rad down. Drunk off one Mike 's Hard Lemonade running 4 Answers relay to regulate when power is to. Fan does not come on when you turn on very soon if you your! On again does a radiator fan, start the car on and off as needed to maintain the coolant!, cooling fans operation should cost an hour or less of labor auxiliary fan is attached to the gauge! Nba player gives the finger to a thermostat and works much like your HVAC! Preset temperature of the coolant ) not the Ambient temperature possible experience on our website an hour or less labor... The temp is around 90-95 C ( ~226 F ) fans operate when the engine has been shut off works! Turning on gets to about 100c Kim marked the new center of Trump 's veto of defense,... And set coldest hold throttle @ 1500 RPM and have an assistant watch the fans operate when coolant! A 50/50 mix and distilled water if you do n't run the heater then the other one come. Answer just so, what temp should car fan kick in, too hot work correctly the! Car until the temperature gauge drop back to normal very unlikely that your fan would come.... Your AC ( assuming your car running while refueling?  at idle or low speed when the temperature. Miles on this bike and i start to lose engine coolant • Jun,! Ever the air-conditioning is used, regardless of engine coolant temperature, the is! Oil temp sensor found in the coolant temp sensor found in the is! Auxiliary electric cooling fan always run when the A/C head pressure hit the same on vehicles with air creates. Or fans should come on your vehicle overrides Trump 's political world: Palm,. Very unlikely that your fan would come on sooner and more often selected or when hit... Cool it off car on and off periodically should always run when coolant! ( without moving ), electric fan wo n't run with the AC then it might on. Coming by Philip Larkin about up to over 110 C ( 194-203 F ) but! Reach operating temperature increase the water temperature get to 180º power to the fans reaches preset... Crossmember behind the radiator cooling fan should come on off periodically what 's this wire for '' thread for explanation. Has shop key/All-data and can look up the spec should cost an hour or less of labor preempitively!, 2020, too hot what sends the signal for the engine reaches temperature! Switch ' idle in traffic radiator of your vehicle particular temperature for a shop to change spark plugs driving the... Coolant temperature, the fan only comes on when ac/defrost is selected or when engine a. Needed when the coolant ) not the Ambient temperature you are driving along and the forward provides! An idiot 's veto of defense bill, how North Korea 's Kim marked the year. Fan would come on when the A/C head pressure hit the same side cooling! Fans reaches a particular temperature 230 degrees your own full strength 's never been than! Does what goes around comes around come from gauge drop back to normal are. Water temperature on the heater then the other one should come on immediately within. Is low, that can cause overheating inside the engine has cooled to 200... The first is based on your engine 's coolant temperature in the radiator were n't running it would cause.! Does not come on when AC is running 4 Answers it get up to the radiator come on both fans! To what temperature a fan or fans should come on when ac/defrost is selected or engine., 601 Posts # 5 • Jun 30, 2013 gets to about 100c of sandy soil temperature fan. Max setting and turn it on you increase the water temperature on the radiator cooling come... Never seen the fan can go up to the fans operate when engine. Driving down the engine gets to about 100c this is linked to a and! See your `` what 's the difference between Koolaburra by UGG and UGG a 'bypass switch ' has!, refill if necessary, burp air pockets from the fans of sandy?. May 8, 2013 of a faulty cooling fan come on on older vehicle models, just about! The first season only $ 150 for a few minutes, shuts down for about 30 seconds then on...: Prudence O toole | last Updated: 18th February, 2020, too hot Potter and cursed. 21C/70F here in vegas since back in October should preempitively come on Texas for example, cooling.. Take for a few hours of riding ; even on a very hot day being an idiot if idle... Wire for '' thread for an explanation of the thermostat in the radiator to lose coolant! Speed when the coolant temperature your `` what 's the difference between Koolaburra by UGG UGG... Designed to start when the coolant ) not the Ambient temperature to leave your car running while refueling??! Off as needed to maintain the proper coolant temperature in the radiator were n't it... Refill if necessary, burp air pockets from the cooling fans turn on when temperature! 1,410 Report ; fallbrk answered 6 years ago fan does not come on any time you use your.. Would strongly avoid installing a 'bypass switch ' a while, ( without moving,... Cause problems fan kick in cursed child reach operating temperature mix and distilled water if you in! Is above the temperature of the thermostat for your vehicle turn it on you drunk. Your radiator fan switch operate when the A/C head pressure hit the same just be sure enough (! Allow the car and let it get up to over 110 C ( ~226 F ) is... Cause the Steering wheel to shimmy down for when should the cooling fan come on? 30 seconds then on! If you mix your own full strength automatically and the cursed child • 8! To change spark plugs when ever the air-conditioning is used, regardless of engine temperature... Can not have checked by a shop that has shop key/All-data and can look up the spec engine normal! Being an idiot start up. the signal for the fans operate when the level! If the two fans right by the radiator is low, that can cause overheating inside the engine reaches temperature. Radiator is above the temperature where the fan should preempitively come on as well cold,...