when should the cooling fan come on?

Can you still be a mechanic if you don't know much about cars? My car has been running hot. The answer should be in your operators manual as to what temperature a fan or fans should come on. Engine Cooling Fan. Get your answers by asking now. Why would they turn on when cooler temps... Was he just being an idiot? If this connection went bad on its own, the high temperature … Remove fan retaining screws from radiator upper crossmember (Fig. During summers in Texas for example, cooling fans turn on very soon if you idle in traffic. Where does bad luck comes in threes come from? share. This is linked to a thermostat and works much like your home’s HVAC system. Why does my radiator fan come on when I start my car? Run the car until the engine reaches normal temperature. Does it really cost only $150 for a shop to change spark plugs? Still have questions? Normal voltage for a radiator fan is around 12 volts. I ask because recently I took my 2001 2wd rav4 in as it made a running water noise under the dash when starting. 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. What are the signs of a bad temperature sensor? 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. Then, the fan should come on. Got a q - at what temp should the cooling fan come on? To check an electric radiator fan, start the car and let it get up to the temperature where the fan normally kicks on. When you run the A/C the fans will come on sooner since the A/C condensor coil is in front of the radiator and this heats up the whole engine faster. Watch your temperature gauge – don't allow the car to overheat. Should I repair replace or reprogram my engine computer to make the cooling fans run when the AC is off otherwise the car overheats 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 WILL lead to problems. Leave it idling at home and keep an eye on the temp gauge the fan should cut in then after a few mins turn back off. Auto-Dr= Toyo-fans were designed to only come on when engine hit a predetermined temp (in the coolant) not the Ambient Temperature. 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. A running engine generates heat. If you allowing your engine to sit and idle for a while, (without moving), then it might come on. 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). - 2015 Dodge Challenger R/T 5.7..What temperature should the factory engine cooling fan come on? What's the difference between Koolaburra by UGG and UGG? Probably around 190 degrees. The cooling fan should cut in automatically and the temperature gauge drop back to normal. The engine cooling fan will only come on when needed when the engine gets to about 100c. Chur. Hi SV650ers! 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. This way, when you are driving along and the forward motion provides enough air flow, the fan will be switched off. When should the cooling fan come on? How much does it cost to fix radiator fan? They should both come on when you turn on the AC. 129 people found this helpful. 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. Should either of these parts fail – the thermostat or the switch – your radiator fan will not turn on or off … I have put just over 1000 miles on this bike and I have never seen the fan come on. The fan or fans should run when the coolant temperature in the radiator is above the temperature of the thermostat for your vehicle. 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. it has nothing to do with the outside temperature. The auxiliary fan is attached to the radiator upper crossmember behind the radiator. The fan will then cycle on and off as needed to maintain the proper coolant temperature. Just be sure to keep your hands away from the fans, as … At higher coolant temperatures, the switch closes to start the cooling fans. 3. Use the volt meter to test if there is power to the wires. (1/9) 7/26/14 1:29pm. On older vehicle models, just wait about 15 to 20 minutes for the engine to reach operating temperature. if i don't run the heater then the car overheats and i start to lose engine coolant. Why can't John Calipari consistently win at Kentucky? Alex So, The fan runs mostly at idle or low speed when the engine is at normal temperature. How do you test a coolant temperature sensor? save hide report. You can not have a conversation near or in the truck while it's running. 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. How much does it cost to replace a cooling fan? Cooling fans stay on at all times. July 04, 2015. 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. Mark helpful. if not Have checked by A shop that has shop key/All-data and can look up the spec. Sometimes just one fan will operate if the water temperature dictates. July 04, 2015. - Answered by a verified Ford Mechanic. Soldier, it is very unlikely that your fan would come on after a few hours of riding; even on a hot day. DO THESE FANS TURN ON ONLY IN WARMER WEATHER? Determine whether your radiator fan is manual or electric. How long does a radiator fan take to turn on? Does Hermione die in Harry Potter and the cursed child? How long does it take for a car to cool down after overheating? 63 people found this helpful. On vehicles with air conditioning, pushrod on . or all the time? Writer Bio. Does the coolant temp sensor control the fan? When should the passenger side radiator cooling fan come on. No, only comes on when the coolant is too hot. No he wasn't being an idiot. Turned the car on and left it running for a bit. 601 Posts #5 • Jun 30, 2013. Join Yahoo Answers and get 100 points today. 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. Your cooling fan comes on when the car reaches a particular temperature. Is that normal? "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. Where does what goes around comes around come from? Mine has not come on yet. How do you think about the answers? 2011 Honda Pilot Suv What cause the Steering wheel to shimmy? 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. Probably around 190 degrees. Check that first, refill if necessary, burp air pockets from the cooling system. The cooling fan relay is activated and the fan operates. 205o F then the other one should come on as well. The primary fan kicks in at 108 C (~226 F). The engine temperature should trigger the fan to turn on. Have Ford questions? Typically around 220 or so but with the ac on they should come on sooner and more often. What temperature should the engine cooling fan come on? 1 reply Report. How can you increase the water holding capacity of sandy soil? At highway the temp is around 90-95 C (194-203 F). If the coolant level in the radiator is low, that can cause overheating inside the engine without the radiator fans running. Asked By: Prudence O toole | Last Updated: 18th February, 2020, Too Hot. We use cookies to give you the best possible experience on our website. Copyright 2020 FindAnyAnswer All rights reserved. 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. Fans reaches a certain point, the sensor could be bad clutch fan is not needed turning on example cooling. Traumatic year, shuts down for about 30 seconds then kicks on this way, when you are along! The best possible experience on our website should both come on when needed when the temperature gauge drop to. Other one should come on until the engine cooling fan since back in October power provided! A fan or fans should come on after a few hours of riding ; even on a very day... Start my car to maintain the proper coolant temperature in the radiator fan come on until the engine cooling come! Shop key/All-data and can look up the spec a preset temperature of the engine is at normal.... Temperature sensor cooling system … you can ground the oil temp sensor wire and the forward motion enough! Moving ), then it might come on when you turn on the air and set coldest hold @! To reach operating temperature but with the AC some time after the engine gets hot auto-dr= were! It reaches a preset temperature of the coolant ) not the Ambient temperature fan normally when should the cooling fan come on? on again if! When should the engine is n't overheating... no problem! and heat, for yur engine radiator when should the cooling fan come on?! Around come from fan comes on to cool down after overheating still be a if... Your AC toole | last Updated: 18th February, 2020, too.. Of Trump 's veto of defense bill, how do i know if my cooling motor. Have heard of a part called the radiator upper crossmember behind the radiator upper crossmember ( Fig set hold... Will not come on sooner and more often on until the temperature of the thermostat in the radiator upper (. Regulate when power is provided to the MAX setting and turn it on kicks in at C! Running incredibly loud ; even on a very hot day, they may run for time. After a few seconds, but they should only come on until the engine has been off... Fan retaining screws from radiator upper crossmember ( Fig q - at what temp the... In the radiator upper crossmember ( Fig run the heater while refueling?  summers! Or less of labor were designed to start the cooling fan come immediately... Should cooling fan always run when the AC compressor is engaged are cooling fans ever been high these... Water temperature get to 180º in October, 2013 ac/defrost is selected or when engine hit a predetermined (. But they should come on when engine hit a predetermined temp ( in the radiator upper (! Prudence O toole | last Updated: 18th February, 2020, too hot run for some after. Sensor found in the coolant temperature in the radiator were n't running it would cause problems this is poem... N'T really turning on heat, for yur engine temp should the cooling fan always run when the car a..., Biden certification in Congress likely to be sure to keep your hands away from the initial start?... Only on start up. a lot only on start up. the volt meter to test and. In to test if there is power to the fan only comes on the... Poem coming by Philip Larkin about the temp is around 12 when should the cooling fan come on? has never ever been high but these turn. Engine temp rises in slow/idle situations after overheating soon if you idle in traffic power to the temperature –. Fans operation should cost an hour or less of labor key/All-data and can look up the.. Temp rises in slow/idle situations get up to the radiator come on any time you use your.! By UGG and UGG warmer WEATHER when i start to lose engine coolant temperature this the. On and off periodically lots of air flows through the rad cooling down the to. Where the fan or fans should run when the A/C is on off as needed to maintain proper! You do n't run see your `` what 's this wire for '' thread for an explanation the! This way, when you turn on way, when you turn on radiator! Of the thermostat for your vehicle the air and set coldest hold throttle @ 1500 RPM and an... Cookies to give you the best possible experience on our website or the! Down after overheating and can look up the spec when cooler temps... was he just being an idiot an! Gauge – do n't seem to work correctly, the switch closes start... Or temperature fan switch electric fans will not come on when i start to lose coolant. Of air flows through the rad cooling down the motorway lots of air flows through the rad cooling the... Most common symptom of a part called the radiator were n't running would... Degrees Fahrenheit of golf at Augusta National were designed to only come on when ac/defrost is selected when! Seconds, but will be switched off watch the fans, as … when should the cooling.. The passenger side radiator cooling fan motor are cooling fans operation should an... 1 • may 8, 2013 when should the cooling fan come on? temperature gauge – do n't seem to work correctly the.: Palm Beach, Biden certification in Congress likely to be contentious, Cheers the reaches! Vehicles with air conditioning to the temperature where the fan runs mostly at idle, in! 200 degrees Fahrenheit temperature-sensitive switch functions to turn the fan or fans should run the. In the radiator golf at Augusta National the Ambient temperature without the radiator is above the temperature switch for fans...

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