What Temperature Should Radiator Fan Turn On

What Temperature Should Radiator Fan Turn OnIf the radiator fan is in working condition, move on to the next step. Would anyone know at what temp the radiator fans are programmed to come on? Also, what is your engine temp on the highway? I am getting ~215 degrees at 75mph on a 90 degree day with no trailer, AC on, in 10th gear. So, the fan runs mostly at idle or low speed, when the engine is at normal temperature. The fans will deactivate 10°F below each turn-on temperature. If this sensor is faulty, a replacement costs around $25 to $45. Consider replacing it with a unit that has earned the ENERGY STAR label. I will watch the temp gauge flutter slightly (if you werent paying attention you would miss it), the fans cycle for about 4-5 seconds, the temp return to 190* for about 3-4 minutes, fans cycle, returns to 190* for 3-4 minutes, fans kick back on. The radiator fan draws air through the radiator core when there is not sufficient air flow such as at low speeds. A simple way to check if the radiator fan is working is to start your engine and turn the air-conditioning system (A/C) to the maximum speed. It must be programmed to come on at a higher temp. By following this routine, you may again be able to. If your car does not have a thermostat, you can still manually turn on the radiator fan at a lower temperature if you wish. Or if the engine is making more heat than the air passing through the radiator can cool then the coolant is not cool enough and the thermostat turns on the fan (s) to assist. The cooling fan switch simply activates the cooling fans to turn on, typically around 195 degrees F. The fan usually activates when the coolant temperature exceeds 200 degrees F. The sensor should switch on the fan when the cooling temperature reaches 92ºC (meaning Stage 1) and activate the stage 2 when we have 99ºC. 106Dart. You might also see a warning message on the dashboard display. To check the temperature at which the fan comes on, turn the A/C off and keep the engine running until it reaches normal operating temperature. What Sensor Turns on the Radiator Fan? The coolant fan switch or the AC compressor turns on the radiator fan. if the a/c is off, then it should depend on the temp of the coolant. Most fans should come on, when the coolant reaches, about 200 to 230 degrees. Only functional with the ignition switch in the Run position. Therefore, rather than assuming that the fan and motor are defective, check the temperature. If stopped in traffic, I hear the fan kick into its highest speed when the water temp hits 223 degrees. From the color of the thermometer, the light tells you three things; when the engine's cold (light blue), when the engine's temperature is "normal" (light off) and when it's overheating. My coolant temps were spiking to 230 deg and still the fan would not kick on unless I had the AC on. Photo by Matthieu Joannon on Unsplash. Factors like a blown relay, bad temperature switch, a blown fuse, frayed wiring harness, and low coolant temperature can prevent the car radiator fan from coming up when the AC is on or off. Most of the fans turn on when the coolant reaches around 200 degrees. For maximum efficiency, you should also designate eight hours per day during which you turn the temperature down by between 7 and 10 degrees. one fan turning on/off is perfectly normal but it is a bit odd that it would go above 210 at all. Also possible is defective Coolant Temp Sensor causing the ECM to turn on the cooling fans. If your ideal operating temperature is 176-180 I'd agree with setting your fan to turn on at 185, that way it kicks on whenever your coolant temperature starts to climb above that temp your fan can keep things in check. Step 4 – Check the engine coolant temperature (ECT) sensor The ECT sensor monitors the coolant temperature, and allows the fan to. Installed correctly, these high-efficiency units can save up to 20 percent on heating and cooling costs. Engine Cooling Fan. You may have heard of a part called the radiator fan switch or temperature fan switch. It will do this a while and then the fans just deicide they do not want to kick on anymore and the. However, the normal engine temp should be in the range of 195 degrees to 220 degrees Fahrenheit. At what temperature should I set my new electric fan to come on? I have a 180* T-stat, so I was thinking I should set the fan to come on at 190 or 200. How To Check If Radiator Fan Is Working. AT WHAT TEMPERATURE RADIATOR FAN TURNS ON CHEVROLET CRUZE, CHEVY SONIC, HOLDEN CRUZEIn this video we will show you at what temperature the radiator fan / coo. This is linked to a thermostat and works much like your home's HVAC system. I set my Ultragauge coolant temperature alarm for 206 degrees. See more Reply Save Like S ScaldedDog. Pull out Cooling Fan Relay 1 and the fans should turn off. Another way to determine if the coolant temperature sensor is the problem is to disconnect the sensor. On the move it would be between 208-226. Cracked open the screw on the thermostat and let it run for about 15 seconds then shut it. AIO liquid cooler: If you’re cooling your CPU with an AIO, optimal setups include placing the radiator in the front or top of your case. It will also turn the fan off once the engine has cooled to under 200 degrees. Normal coolant temperature varies from car to car. You can not read it’s temp from a scan tool. Step 4 - Check the engine coolant temperature (ECT) sensor. On very hot, humid days, sweat evaporates off the skin slower than normal, and fans make it even more difficult for the body to lose heat by sweating. The fan also turned off at 198 degrees. Most thermostats open at around 185F and the fan should come on at about 200F. In terms of my coolant temps they generally are around 80-85C in the winter on the highway and a consistent 88-90C in the summer, highway or city. one fan turning on/off is perfectly normal but it is a bit odd that it would go above 210 at all. You can not read it’s temp from a scan tool. Consider replacing it with a unit that has earned the ENERGY STAR label. If your ideal operating temperature is 176-180 I'd agree with setting your fan to turn on at 185, that way it kicks on whenever your coolant. The radiator fan in most cars is designed to turn on at around 200 degrees Fahrenheit. So, Let’s Start With Some Easy Questions: Is your Engine Overheating Is your Engine Cooling Fan Working If Not , Let’s Do Some TestingAnd Try To Fix It Yourself: The first step is, checking for a blown fuse. AIO liquid cooler: If you’re cooling your CPU with an AIO, optimal setups include placing the radiator in the front or top of your case. Generally, I understand that radiator fans should start only after coolant or engine temperture reaches a certain high temperature. If setting your thermostat to somewhere in the 80s sounds too warm, then a good rule of thumb to follow is to turn your thermostat up 7 to 10 degrees from your normal setting for eight hours a. Share Improve this answer Follow answered Apr 5, 2013 at 23:18 Scott Hillson 3,210 1 22 27 Are you just guessing at 185°?. The fan will then cycle on and off as needed, to maintain the proper coolant temperature. However, the normal engine temp should be in the range of 195 degrees to 220 degrees Fahrenheit. Today the radiator fan came on when the coolant temperature reached 198 degrees. If the fan does not turn on, you will need to replace it. With the bike off and key removed, disconnect its harness. Needle on the gauge is at about the 12 O'clock position. Would anyone know at what temp the radiator fans are programmed to come on? Also, what is your engine temp on the highway? I am getting ~215 degrees at 75mph on a 90 degree day with no trailer, AC on, in 10th gear. If you notice your vehicle is overheating or at the very least running hotter than it normally does, listen for the fan to see if you can hear it. As coolant circulates between the engine and radiator, the thermostat usually remains open to maintain a consistent operating temperature (which is important for good. This unit is designed to control 2 electric fans with a Maximum Draw of 35 Continuous Amps Per Fan. Or if the engine is making more heat than the air passing through the radiator can cool then the coolant is not cool enough and the thermostat turns on the fan (s) to assist. Electronic fan (2nd stage) will cut-in at 107 Electronic fan (2nd stage) will cut-out at 100 A/C will go into 50%on, 50%off cycle (20 seconds interval) at coolant temp 121 to 123 A/C will go into emergency shut-off mode at 126 to 128 Pressure cap will open at bar 1. Photo by Matthieu Joannon on Unsplash When the Radiator Fan Should Turn On The radiator fan is normally controlled by the ECU (electronic control unit) which is the brains of your car. Click to expand Good explanation. However, some newer cars have a thermostat that allows the fan to turn on at a lower temperature, such as 185 degrees Fahrenheit. How To Check If Radiator Fan Is Working. Turning this switch On powers the primary fan and overrides the factory and aftermarket temperature settings. The switch should be located on the radiator, either the top or bottom. At What Temperature Should the Radiator Fan Kick In? The normal coolant operating temperature is around 90C or 195F. What Sensor Turns on the Radiator Fan? The coolant fan switch or the AC compressor turns on the radiator fan. If the fan does not turn on, you will need to replace it. If the air flowing through the radiator is not cooling the coolant enough to reduce the temp of the coolant, and therefore the. Let car cool off and squeezed the hoses to make sure they were full. The thermostat does not know if the car is moving or if air is flowing through the radiator, it just knows that when the coolant temp reaches a predetermined temperature it then sends a signal to turn on the fan. The cooling fans are designed to turn on once a certain temperature has been reached inside of your vehicle, or certain conditions have been met. If your engine coolant’s too low, it means that the cooling fan will have to work harder to keep the engine at a normal temperature. If the radiator fan is in working condition, move on to the next step. In most car models, the radiator fan should start when the coolant temp sensor is disconnected, and the car is running. The sensor should switch on the fan when the cooling temperature reaches 92ºC (meaning Stage 1) and activate the stage 2 when we have 99ºC. With AC on will maintain roughly 208-210. I run a 165 degree thermostat in my engine and have the fan programmed to come on at 180. So, Let’s Start With Some Easy Questions:. Your radiator fan should kick in at about 200 degrees Fahrenheit. The fan usually activates when the coolant temperature exceeds 200 degrees F. I can't really hear the fan at its lowest speed even when standing in front of the car, but if you open the hood you can see/feel it running. All check temps measured with an infrared gun. Most trigger between 175 and 200F I think. Once it got to 221 and came back down to 219. Your furnace or boiler is more than 15 years old. Having a lower temperature is not a good thing, the engine has been designed to operate at it's most effective and efficient in the 90-100 degrees as fas as I know. The thermostat does not know if the car is moving or if air is flowing through the radiator, it just knows that when the coolant temp reaches a predetermined temperature it then sends a signal to turn on the fan. At What Temperature Should the Radiator Fan Kick In? The normal coolant operating temperature is around 90C or 195F. Consider replacing with an ENERGY STAR qualified furnace, which is 15% more efficient than a conventional furnace. If you are driving in Arizona and the outside temp is 110 degrees then the air is not providing much cooling as it passes through the radiator. If necessary, a replacement relay costs around $20. Photo by Matthieu Joannon on Unsplash When the Radiator Fan Should Turn On The radiator fan is normally controlled by the ECU (electronic control unit) which is the brains of your car. At What Temperature Should the Radiator Fan Kick In? The normal coolant operating temperature is around 90C or 195F. The electric cooling radiator fan, which turns on and off as needed based on the internal vehicle temperature, is an improvement over engine-driven fans that. Discussion Starter · Sep 27, 2012. Engine Cooling Fan. The radiator fan draws air through the radiator core when there is not sufficient air flow such as at low speeds. To test it, locate it on the radiator. If setting your thermostat to somewhere in the 80s sounds too warm, then a good rule of thumb to follow is to turn your thermostat up 7 to 10 degrees from your normal setting for eight hours a. 1 – Manual fan turn-on for the primary fan. If the temperature has already exceeded this threshold when the car starts, the radiator fan will also activate. In most car models, the radiator fan should start when the coolant temp sensor is disconnected, and the car is running. In terms of my coolant temps they generally are around 80-85C in the winter on the highway and a consistent 88-90C in the summer, highway or city. Consider replacing it with a unit that has earned the ENERGY STAR label. Though, most vehicles do not display the degrees of the coolant temp on the instrument cluster. To check the level, look for the coolant expansion tank in the engine bay. The fan relay is part number 61366901469. The fan switch at the bottom of the radiator IIRC activates around 199F. Exactly right - cold, normal, and Oh Cr*p. 5 Coolant temp max is 130. The thermostat does not know if the car is moving or if air is flowing through the radiator, it just knows that when the coolant temp reaches a predetermined temperature it then sends a signal to turn on the fan. If the radiator fan is in working condition, move on to the next step. For maximum efficiency, you should also designate eight hours per day during which you turn the temperature down by between 7 and 10 degrees. Depends on what the temperature rating of your fan switch is. According to my 07 FSM, with the AC off, the fans should come on at low vehicle speed at between 205 and 210 F, and at high speed if the coolant reaches. If the temperature has already exceeded this threshold when the car starts, the radiator fan. I will watch the temp gauge flutter slightly (if you werent paying attention you would miss it), the fans cycle for about 4-5 seconds, the temp return to 190* for about 3-4 minutes, fans cycle, returns to 190* for 3-4 minutes, fans kick back on. Consider replacing it with a unit that has earned the ENERGY STAR label. According to my 07 FSM, with the AC off, the fans should come on at low vehicle speed at between 205 and 210 F, and at high speed if the coolant reaches 212 F or more. This typically takes about 15-20 minutes for the engine to reach the right temperature for the radiator fan to turn on in older cars. The radiator fan comes at roughly 95C or over 200F, but the exact temperature is different between cars and engines. We would like to show you a description here but the site won't allow us. The A/C condenser (the part which sits in front of the coolant radiator) is a heat exchanger. Most fans should come on when the coolant reaches about 200 to 230 degrees. The sensor should switch on the fan when the cooling temperature reaches 92ºC (meaning Stage 1) and activate the stage 2 when we have 99ºC. If the fan is spinning, then it means that the fan motor, fuse, wiring, and relay are all working properly. Yes, the radiator fan should start blowing when you turn on the air conditioning system. Most thermostats open at around 185F and the fan should come on at about 200F. In a nutshell: The radiator fan comes on so the A/C works at its highest efficiency. The coolant level should always be between these 2 marks. Maximum Draw of 35 Continuous Amps Per Fan. Factors like a blown relay, bad temperature switch, a blown fuse,. Step 4 – Check the engine coolant temperature (ECT) sensor The ECT sensor monitors the coolant temperature, and allows the fan to turn on if the coolant is too hot. I can't really hear the fan at its lowest speed even when standing in front of the car, but if you open the hood you can see/feel it running. The fans will deactivate 10°F below. The radiator fan comes at. It's just a way of keeping cars out of the shop that don't belong there. The engine temperature should trigger the fan to turn on. AIO liquid cooler: If you're cooling your CPU with an AIO, optimal setups include placing the radiator in the front or top of your case. In this case, if the fan does not turn on it means that its something wrong with your fan circuit. A simple way to check if the radiator fan is working is to start your engine and turn the air-conditioning system (A/C) to the maximum speed. Radiator fan testing points. In this type of reading on the instrument cluster, if the temp gauge needle is resting on or. If I turn on more fans for hard driving, the oil temp will try to go down to 185, but the coolant temp will stay pinned at 194 despite it having to go down to bring the oil down. (light red) Exactly the same information the old analogue gauges supplied. If stopped in traffic, I hear the fan kick into its highest speed when the water temp hits 223 degrees. I run a 165 degree thermostat in my engine and have the fan programmed to come on at 180. When the coolant temperature goes up beyond 100 ∼ 110°C (212 ∼ 230°F), the radiator fan switch conducts to operate the radiator fan. Simply put, the old switch would turn the fan on when the temperature hit a whopping 220 degrees! The new Hypertech temperature switch turns the fan on at a much-improved 195 degrees and. Coolant temp should sit in the 90-100 C. The temp gauge should never reach the RED zone if everything is working properly. Your radiator fan should kick in at about 200 degrees Fahrenheit. To test it, locate it on the radiator. Fan #1 is. The radiator fan in most cars is designed to turn on at around 200 degrees Fahrenheit. I will watch the temp gauge flutter slightly (if you werent paying attention you would miss it), the fans cycle for about 4-5 seconds, the temp return to 190* for about 3-4 minutes, fans cycle, returns to 190* for 3-4 minutes, fans kick back on. There is an electric thermostat relay that is responsible for connecting the circuit once this temperature is reached. You should perform resistance checks with an ohmmeter and see if the fan circuit is any good. AT WHAT TEMPERATURE RADIATOR FAN TURNS ON CHEVROLET CRUZE, CHEVY SONIC, HOLDEN CRUZEIn this video we will show you at what temperature the radiator fan / coo. Fan #1 is designed to activate at the desired adjusted temperature (150 -240°F). Keep in mind that the fan primarily responds to the temperature. I have seen the fan moving in the past. If air isn't flowing over it, it won't exchange the heat it needs get rid of so the A/C core inside the vehicle can become cold and make you comfortable. Tim '65 2+2 347 - Holley DP - 471 fwhp JBA shorty's, 2. The radiator fan in most cars is designed to turn on at around 200 degrees Fahrenheit. If you are driving in Arizona and the outside temp is 110 degrees then the air is not providing much cooling as it passes through the radiator. Also, no codes or limp mode so I disconnected the battery yesterday for 30 min to reset everything. If the cooling fan is failing or damaged, the engine temperature will continue to rise, and eventually overheat. What Sensor Turns on the Radiator Fan? The coolant fan switch or the AC compressor turns. It must be programmed to come on at a higher temp than the thermostat or it will run all the time. However, the normal engine temp should be in the range of 195 degrees to 220 degrees Fahrenheit. The thermo switch (also called the cooling fan switch) sends a signal to the cooling fan, so the fan turns on if the coolant gets too hot. One other thing to consider is the location of your temp sensor and your fan sensor. The coolant level should always. Most of the fans turn on when the coolant reaches around 200 degrees. However, some newer cars have a thermostat that allows the fan to turn on at a lower. You may have heard of a part called the radiator fan switch or temperature fan switch. With a traditional tower air cooler, you’d optimally want the fan located on the cooler’s heatsink pushing air towards the rear exhaust of the case. Normal coolant temperature varies from car to car. Trying to see at what position on the coolant temp gauge the radiator fan turns on at. If there's a problem with the engine's temperature, then this can damage the radiator. From the color of the thermometer, the light tells you three things; when the engine's cold (light blue), when the engine's temperature is "normal" (light off) and when it's overheating. When I reconnected it, the fan was working properly, coming on low mode when the engine is hot and high mode with the AC. designed to activate at the desired adjusted temperature (150 -240°F). If your engine coolant’s too low, it means that the cooling fan will have to work harder to keep the engine at a normal temperature. If so, you may have a problem with the harness, ECM or coolant temp sensor. Consider replacing with an ENERGY STAR qualified furnace, which is 15% more efficient than a conventional furnace. In my case, the cooling temperature cross the 92ºC and nothing happens to the fan (stage 1 is not activated). From the color of the thermometer, the light tells you three things; when the engine's cold (light blue), when the engine's temperature is "normal" (light off) and when it's overheating. Unplug Coolant Temperature Sensor. It will also turn the fan off once the engine has cooled to under 200 degrees. The switch should be located on the radiator, either the top or bottom. If the fan does not turn on, you will need to replace it. You can only read the ECT temp, which will be higher since it’s located on the engine compared to the temp at the bottom of the radiator. If the air flowing through the radiator is not cooling the coolant enough to reduce the temp of the coolant, and therefore the temp. The coolant level should always. Auto 2 – Arms the aftermarket fan turn-on kit for the secondary fan. If the fan is spinning, then it means that the fan motor, fuse, wiring, and relay are all working properly. 5" tubes, Dr Gas X-pipe T-5 world class 5 speed, w/. So the Haynes manual had it right I set my Ultragauge coolant temperature alarm for 206 degrees. The fan usually activates when the coolant temperature exceeds 200 degrees F. In theory, there are two conditions when the coolant temperature surpasses the predefined limit: 1. Installed correctly, these high-efficiency units can save up to 20 percent on heating and cooling. How To Check If Radiator Fan Is Working. There are usually two marks on it - a minimum and maximum level mark. There are usually two marks on it – a minimum and maximum level mark. So it appears that when the climate control is in auto or the AC is switched on, the radiator fan will operate and the running engine temp will operate in the 170-180 deg f range. The fan switch at the bottom of the radiator IIRC activates around 199F. If a red or yellow temperature icon lights up on your dashboard, you should stop as soon as it’s safe to do so. In the example above, the open shroud GPU will. With a traditional tower air cooler, you’d optimally want the fan located on the cooler’s heatsink pushing air towards the rear exhaust of the case. If setting your thermostat to somewhere in the 80s sounds too warm, then a good rule of thumb to follow is to turn your thermostat up 7 to 10 degrees from your normal setting for eight hours a day. This unit is designed to control 2 electric fans with a. I run a 165 degree thermostat in my engine and have the fan programmed to come on at 180. Depends on what the temperature rating of your fan switch is. Installed correctly, these high-efficiency units can save up to 20 percent on heating and cooling costs. Electronic fan (2nd stage) will cut-in at 107 Electronic fan (2nd stage) will cut-out at 100 A/C will go into 50%on, 50%off cycle (20 seconds interval) at coolant temp 121 to 123 A/C will go into emergency shut-off mode at 126 to 128 Pressure cap will open at bar 1. AT WHAT TEMPERATURE THE RADIATOR TURN ON DODGE JOURNEY | FIAT FREEMONTIn this video we will show you at what temperature the radiator fan turns on Dodge Jour. Most fans should come on, when the coolant reaches, about 200 to 230 degrees. It will do this a while and then the fans just deicide they do not want to kick on anymore and the. 10,334 Posts. sonychin88 said: I bought a preowned s320 recently, and notice that the radiator fans started to turn about 5 seconds after ignition switch is on, and even before starting the car. The thermostat should be fully open about 20 degrees F higher than its rated temperature for maximum flow, and should maintain engine temperature in the 200 to 230 degree range. Per the FSM generally: (1)With AC off Elec cooling fans will operate in low speed if coolant > 203 degrees F and in high speed > 230 F (I think 230 correct) (2)With AC on the low speed fan is always on (<50mph) and high speed will come on for coolant >203 degrees F. Exactly the same information the old analogue gauges supplied. If setting your thermostat to somewhere in the 80s sounds too warm, then a good rule of thumb to follow is to turn your thermostat up 7 to 10 degrees from your normal setting for eight hours a. The fan is two speed. Only at 99ºC (stage 2) the fan start working. Or if the engine is making more heat than the air passing through the radiator can cool then the coolant is not cool enough and the thermostat turns on the fan(s) to assist. If you are driving in Arizona and the outside temp is 110 degrees then the air is not providing much cooling as it passes through the radiator. I'm finding that the fans come on at low speed or stopped only after the coolant temperature reaches 212 - 214 F. It's important to stay hydrated and follow other tips to get cool. The only time they ever climb beyond 90 is if I'm sitting in traffic on a hot summer day if so they climb to 97 fans come on temp drops to 92, and fans shut off. One other thing to consider is the location of your temp sensor and your fan sensor. You can only read the ECT temp, which will be higher since it’s located on the engine compared to the temp at the bottom of the radiator. The engine temperature should trigger the fan to turn on. If the air flowing through the radiator is not cooling the coolant enough to reduce the temp of the coolant, and therefore the temp. The coolant level should always be between these 2 marks. However, it is simply an on off switch. This increases up the cooling action of the radiator. position, the aftermarket fan turn-on temperature is armed. In most car models, the radiator fan should start when the coolant temp sensor is disconnected, and the car is running. Depends on what the temperature rating of your fan switch is. Test The Fan Motor You can also check the fan motor with jumper wires. It must be programmed to come on at a higher temp than the thermostat or it will run all the time. Turn the air conditioning to the maximum setting - this should spark the cooling fan to immediately come on. Chito Discussion Starter · #7 · May 9, 2021. I have been driving the car for 2 years now and just noted this anamoly. if you turn on the a/c, that should automatically set the fans to the max fan speed. I'm finding that the fans come on at low speed or stopped only after the coolant temperature reaches 212 - 214 F. In most cars, once the temperature crosses 85 degrees Celsius or 185 degrees Fahrenheit, the radiator fan will start turning. My coolant temps were spiking to 230 deg and still the fan would not kick on unless I had the AC on. If your engine coolant’s too low, it means that the cooling fan will have to work harder to keep the engine at a normal temperature. Yes, the radiator fan should start blowing when you turn on the air conditioning system. Most thermostats open at around 185F and the fan should come on at about 200F. Most of the fans turn on when the coolant reaches around 200 degrees. When indoor air temperatures are hotter than about 95 °F: Fan use may cause your body to gain heat instead of lose it. A faulty switch can cause the engine to overheat. Use a jumper wire to connect (stick one end in one hole and the other. So the Haynes manual had it right. The fan relay is part number 61366901469. If your ideal operating temperature is 176-180 I'd agree with setting your fan to turn on at 185, that way it kicks on whenever your coolant temperature starts to climb above that temp your fan can keep things in check. on flat roads below 212 However Ive seen 232 in stop/go traffic for short periods of time, fan kicked in at a higher speed then usually and dropped the temp back to 210. Fan #1 is designed to activate at the desired adjusted temperature (150 -240°F). In this case, if the fan does not turn on it means that its something wrong with your fan circuit. In most cars, once the temperature crosses 85 degrees Celsius or 185 degrees Fahrenheit, the radiator fan will start turning. In most car models, the radiator fan should start when the coolant temp sensor is disconnected, and the car is running. Chito Registered 2004 Honda CRV EX UK Made. The radiator fan comes at roughly 95C or over 200F, but the exact temperature is different between cars and engines. Transmission is 165-180 most of the time. I suspect that 206 degrees is long before any overheating damage. With a traditional tower air cooler, you’d optimally want the fan located on the cooler’s heatsink pushing air towards the rear exhaust of the case. This is linked to a thermostat. So, the fan runs mostly at idle or low speed, when the engine is at normal temperature. But for this, you need to find out which of the coolant temperature sensors controls the radiator fan, as there may be a separate one for the engine control module and the radiator fan control. position, the aftermarket fan turn-on temperature is armed. You should perform resistance. Only at 99ºC (stage 2) the fan start working. The ECT sensor monitors the coolant temperature, and allows the fan to turn on if the coolant is too hot. Installed correctly, these high-efficiency units can save up to 20 percent on heating and cooling costs. If your car does not have a thermostat, you can still manually turn on the radiator … What Temp Should Radiator Fan Turn on Read More ». The fan is two speed. sonychin88 said: I bought a preowned s320 recently, and notice that the radiator fans started to turn about 5 seconds after ignition switch is on, and even before starting the car. To prioritize the GPU cooling, you. AT WHAT TEMPERATURE RADIATOR FAN TURNS ON CHEVROLET CRUZE, CHEVY SONIC, HOLDEN CRUZEIn this video we will show you at what temperature the radiator fan / coo. AIO liquid cooler: If you’re cooling your CPU with an AIO, optimal setups include placing the radiator in the front or top of your case. So it appears that when the climate control is in auto or the AC is switched on, the radiator fan will operate and the running engine temp will operate in the 170-180 deg f range. The thermostat does not know if the car is moving or if air is flowing through the radiator, it just knows that when the coolant temp reaches a predetermined temperature it then sends a signal to turn on the fan. Fan #1 is designed to activate at the desired adjusted temperature (150 -240°F). In my case, the cooling temperature cross the 92ºC and nothing happens to the fan (stage 1 is not activated). Check to see if you can hear the fan if you notice that your car is running hotter than. If your ideal operating temperature is 176-180 I'd agree with setting your fan to turn on at 185, that way it kicks on whenever your coolant temperature starts to climb above that temp your fan can keep things in check. The thermostat should be fully open about 20 degrees F higher than its rated temperature for maximum flow, and should maintain engine temperature in the 200 to 230 degree range. If your car’s radiator fan is not working, check your car’s owner’s manual and find the fuse for the radiator fan controller or the fan. Follow these steps to test it:. The fan also turned off at 198 degrees. John long. Answer (1 of 3): Around 200 degrees Fahrenheit should cause your radiator fan to turn on. The ECT sensor monitors the coolant temperature, and allows the fan to turn on if the coolant is too hot. This increases up the cooling action of the radiator. When the coolant temperature goes up beyond 100 ∼ 110°C (212 ∼ 230°F), the radiator fan switch conducts to operate the radiator fan. Step 4 – Check the engine coolant temperature (ECT) sensor. Today the radiator fan came on when the coolant temperature reached 198 degrees. The radiator fan switch relay may not be supplying power to the fan. Though, most vehicles do not display the degrees of the coolant temp on the instrument cluster. The fan will then cycle on and off as needed, to maintain the proper coolant temperature. If the radiator fan is in working condition, move on to the next step. Fan #2 will activate once the vehicle water temperature increases by 10°F. In most cars, once the temperature crosses 85 degrees Celsius or 185 degrees Fahrenheit, the radiator fan will start turning. They have markings that indicate low and high temperatures. If not, the fans should come on when the temp gauge needle is slightly right of straight up. According to my 07 FSM, with the AC off, the fans should come on at low vehicle speed at between 205 and 210 F, and at high speed if the coolant reaches 212 F or more. Cracked open the screw on the thermostat and let it run for about 15 seconds then shut it. To prioritize the GPU cooling, you. But for this, you need to find out which of the coolant temperature sensors controls. If your engine coolant's too low, it means that the cooling fan will have to work harder to keep the engine at a normal temperature. This morning, on my hour drive to work, it stayed at 217-219 at 55 degree outside temp. The fan itself often uses a large fuse of around 50A, while there may also be a separate small fuse for the fan control module. Would anyone know at what temp the radiator fans are programmed to come on? Also, what is your engine temp on the highway? I am getting ~215 degrees at 75mph on a 90 degree day with no trailer, AC on, in 10th gear. If I turn on more fans for hard driving, the oil temp will try to go down to 185, but the coolant temp will stay pinned at 194 despite it having to go down to bring the oil down. 70's & T-loc 4 wheel Wilwood disc brakes 17" CL-205's, 225/45 & 255/40. The fan won't turn on when I have driven the car around and let it sit running in the driveway. Consider replacing with an ENERGY STAR qualified furnace, which is 15% more efficient than a conventional furnace. Generally this takes 10 to 15 minutes of idling. Normal coolant temperature varies from car to car. When the coolant temperature goes up beyond 100 ∼ 110°C (212 ∼ 230°F), the radiator fan switch conducts to operate the radiator fan. Fan #2 will activate once the vehicle water temperature increases by 10°F. At what temperature should I set my new electric fan to come on? I have a 180* T-stat, so I was thinking I should set the fan to come on at 190 or 200. Generally, I understand that radiator fans should start only after coolant or engine temperture reaches a certain high temperature. It will jump up to 225 under hard acceleration or going uphill. At What Temperature Should the Radiator Fan Kick In? The normal coolant operating temperature is around 90C or 195F. There is an electric thermostat. However, some newer cars have a thermostat that allows the fan to turn on at a lower temperature, such as 185 degrees Fahrenheit. Verify Pin 2 of the relay receptacle is not grounded. Radiator fan testing points. At What Temperature Should the Radiator Fan Kick In? The normal coolant operating temperature is around 90C or 195F. The radiator fan in most cars is designed to turn on at around 200 degrees Fahrenheit. Turning on the A/C should engage the fans almost immediately so if they don't work doing that then there is a problem with the motors, relays, or circuit fuses.