Removed the bumper to fix it and found that the washer pump was also damaged :thmsup: . V ... new dealer cooling tempt. 29. I was a journeyman refrigeration mechanic in the 60s and serviced many different refrigeration systems. does the radiator fan motor run as soon as the car starts or does it come on at a certain temperature? Still have questions? it is below 30 degrees out and i have my heat and a/c off. Only 8 left in stock - order soon. Immediately upon starting the car, the radiator fan begins to run full speed, even though the car is stone cold. 2. There is no resistor on fan wires run in fuse box under hood I saw that in some minis with a 2 wire connector the resistor is by the fuse panel inside car. It may cause the fan to cut in and out, or not come on at all. It was only because the mechanic was well trained that he put the gauges on the a/c and found it. Skip To Content. Soon as graphics card fan starts, PC shuts down I have a system that I've added some upgrades to, most recent is a Gtx 1060. The cooling fan starts in High Speed when i turn the truck on sometimes, being in the morning when i do a cold start or during the day.I can hear the fan running in High Speed from inside the truck for a short period of time then it goes back to running on normal speed.Is this normal? A coolant fan switch is a small and very simple switch comprised of typically two wires. Defrost on or off, a/c on or off, heat on or off. Again, the HVAC is off. Peugeot 207 fan runs as soon as engine started. Vehicle. Chevrolet Cruze 2013 sedan sri 1.6 70000 miles. Join the discussion. Only 8 left in stock - order soon. If the engine's warm when you start it, then the fan might kick in immediately - this is because the coolant heat will be concentrated at the top of the engine - due to lack of pump circulation - which is where the coolant temperature sensor's located. Contents show. The fan runs as soon is the engine is switched on which it never did before. Your fan is driven off of a sensor. Then i have just noticed that the engine cooling fan comes on as soon as i start the car ( even when engine cold ) is this standard on this car ? A radiator fan can stop working due to various reasons. Radiator fan comes on when engine is cold. wait and allow the fun to be on with temperature monitering not to allow it to shoot up. I checked all the relays and fuses. If stuck closed, the result would be the engine overheating in a short time. hi, my radiator fan comes on as soon as i start the car. You can check out similar questions with solutions below... soon as a car just starts from rest... overtakes the car the ...​Q41. 5 people found this helpful. 2001 Hyundai Santa Fe 2.7L GL AWD-Maintenance & Repair. Any ideas? - I have a 2011 silverado. 5 Reasons Why Your Radiator Fan is not working 1. I've also tried engaging the air conditioning, but that doesn't seem to start the electric fan either. Very little heat and cooling fan runs as soon as I start the engine? Car is working and the cooling fan doesnt turn on for a while, only turns on when even is very very hot, and by that time anti-freeze is coming out of tank. Here’s how to tell if your cooling fan isn’t working, what you should do about it and what the problem might be. Don't worry! 1 - 3 of 3 Posts. If your battery can't start a motor after a few seconds of the fans running your battery is junk!! The radiator fan do not kick in every morning first start, and after 4 hours I switch off the engine. Checked the voltage on the coolant sensor harness with ignition switch on, there is no 5v or the green pin is not grounded. this resets the adaptives. Can you roll back a digital odometer? The only thing about fan on or off is, if the engine is cold, so will the air be coming out of the heater. The eng fan with the ac off will cut on for short periods of time to cool below a certain temp and then cut back off. My tempature gauge reads as 'normal', and there are no leaks under, in or around my engine bay. 1. It is what sends the signal for the fan. There is a temperature sensor/switch on your engine that signals the fan to turn on.. This is holy scary and worrying on midnight highway alone ! I'd start by checking codes to see if there is anything showing up if not next thing I'd do is monitor coolant temp sensor with scantool to see if it is getting to operating temperature like it should. Mar 15, 2012 at 10:18 PM #2. This cycles on and off for about a few minutes. Saturday, November 20th, 2010 AT 6:22 PM. As soon as I turn the ignition key both radiator fan start to spin even though the car is cold and not on. EdwardG.NO2CO2. Get Started I have a different car once it starts up it never stops for the full drive. Is the radiator fan suppose to run as soon as the engine is started? No change.-With car running I pulled R15 relay. Please help me with your expert opinion. Start Right Here Find appliance parts, lawn & garden equipment parts, heating & cooling parts and more from the top brands in the industry here. somebody could have wired you fan straight to the battery so when the car is turned on the fan could come on. The best way to check is to first, check for any error codes. I am clueless where to go next. The radiator and condenser are BRAND NEW. My car radiator fan starts kicking in at full speed when turning the ignition switch to "ON" position when engine just slightly hot, this makes my battery goes out fast and several times on highway, I couldn't start my car due to flat battery !! Look on our how to repair site here on how to check a bad relay as it could be that as well. Sensor. fan starts as soon as engine starts. Once the engine was started, I noticed that the radiator fan was not running. What could be wrong? CL. Kind regards John ted1234, 28 Nov 2012 #1. Cloak de OTHER COUNTRY 10 months ago. save hide report. 1.0 out of 5 stars 2. Trump says niece is embracing 'conspiracy theories', Warnock wins runoff as Dems inch closer to taking Senate, Rapper Dr. Dre hospitalized after brain aneurysm, Ravens QB asks Trump for help with commutation, Duff claims COVID-19 tests gave her an eye infection, Source: Kim is preparing to divorce Kanye West, Watt to Watson: 'I'm sorry we wasted one of your years', The story behind an eye-rolling toddler's viral TikTok, Some find stimulus money sent to wrong accounts, Losses at Trump's Scottish golf courses top $75M. Re: 1998 v70 engine cooling fan runs as soon as the car star Post by Pauloil » 26 Mar 2011, 15:00 another fact: you have to unplug a battery cable when you work on the sensor or other electric parts like O2 sensors. You may have a bad diode in the alternator and are not getting a charge. 3 Answers. You never asked about aa/c not working just fans. I originally had a problem with the car starting in park, which at first i thought was the battery as it was still factory. A temperature-sensitive switch functions to turn the fan on and off periodically. Discussion Starter • #1 • Jul 25, 2015. Every single time I have started my car today, the cooling fan has kicked on immediately. radiator fans are automatic and will start soon as the temperature rises beyond normal. It's a 08 Accord lx. 122 Posts . Yes. The radiator fan turns on at cold startup. Not there either I'm lost now the fan turns on as soon as the car starts and stays on for over 5 min after it's shut off - I have a 2011 silverado. The green wire goes to fan relay 1 have a pro check this by scanning as it may be something else all together like a thermistor or control head for hvac. Please help me with your expert opinion. 100% Upvoted. If the pressure switch doesn't work then it may be low on Freon. yes the cooling fan will take 4 minutes to work The cooling fan will come on as soon as the car starts only if the air conditioner or derfroster is on. My car has 226000 miles. if your does not start then you should seek help of car mechanic/electrician who should check the temperature thermostat fixed under the radiator having wires connected through relay connects fan. I have an E350 4matic 2006 model and as soon as I start the car, the fan starts blowing at a very high speed and I am totally confused cod that is very usual. Private sale estimate. On a cold start, my cars radiator fan starts up but at high speed (sounds like a jet engine). As an aside, the tech's put my car on one of their machines to diagnose the problem (before we figured out what was causing it). best. Normally, when you’re driving, air is moving across the radiator as the coolant moves through it which cools it off. 63 Posts #2 • Feb 26, 2014. Small cars typically have stacked AC and engine radiators cooled by a single fan. That depends on the car. badbrakes. There are many causes for this, mainly depening on vehicle design. Every time I go to start the car after it has been sitting for an entire day and the engine is cold, when I turn the key to the “On” position, before the engine is even started, the cooling fan comes on. Get your answers by asking now. Sort by. Advertise EN. 0. Engine. Pink fluid in coolant reservoir & anti-pollution system dummy light. What's happening?! How to make the radiator fan turn Only After the engine starts ? If no start, problem lies with fan or sensor switch. Fan comes on as soon as the car starts and does not go off straight away. The trigger is the thermostat in the radiator of your vehicle. But if, with the a/c off, the fan runs as soon as you start a cold engine, and / or the fan runs continuously, then I'm afraid that you do have a fault (sounds like a faulty temperature sensor) which will result in over-cooling of the engine = engine not reaching … Chevrolet Cruze 2013 sedan sri 1.6 70000 miles ... Cloak de OTHER COUNTRY 10 months ago. Checked the voltage on the coolant sensor harness with ignition switch on, there is no 5v or the green pin is not grounded. You need to know these symptoms to save your vehicle from a disaster. Checked the voltage on the coolant sensor harness with ignition switch on, there is no 5v or the green pin is not grounded. I Put The Thermostat In Water, Heated It Up Several Times. Jump to Latest Follow 1 - 19 of 19 Posts. Can you purchase a gasoline can at a thrift shop. New comments cannot be posted and votes cannot be cast . No. I have an E350 4matic 2006 model and as soon as I start the car, the fan starts blowing at a very high speed and I am totally confused cod that is very usual. MI. Have your charging system and battery tested. the mechanic said, it will start only when the temp goes up?? The other thing that could possibly cause this is a failing refrigerant pressure sensor. The trigger is the thermostat in the radiator of your vehicle. Check for low coolant the two switches in pic as well as where they are grounded. The engine coolant temp sensor was a common failure on older cars, perhaps your car is the start of the newer ones failing or a fluke. JACOBANDNICKOLAS EXPERT; Has the … Is the radiator fan suppose to run as soon as the engine is started? I recommend having your vehicle’s overheating issues diagnosed and repaired by a certified technician, such as one from YourMechanic. 2. When starting the engine, it sounds like you have your foot pressed to the floor on the gas pedal as soon as you start it, without even having your foot on the gas. BMW. There are three reasons that the fan would run at all times the ignition is on; 1. Therefore, as soon as you feel that the radiator fan is not functioning, rush to the mechanic and get it fixed. Save Share. Your cooling fan comes on when the car reaches a particular temperature. 2011 Chevrolet Silverado 1500 LT 4WD. Fan runs when engine is cold . Once the engine was started, I noticed that the radiator fan was not running. Those Items Were Replaced And The... New Water Pump, New Radiator, New Temp. Since it starts when you start the car, I'd think the a/c wouldn't have time to get hot. Click on Shop Parts, or select the kind of product you're working with on the left and we'll help you find the right part. 25,910 Report; mikeatpriestlake answered 6 years ago I believe that the sensor for the fan has 2 wires in the connector and the gauge sensor only has one. The engine control computer thinks the engine is running hot. Please I need assistance on how to fix that With a simple, secure transaction. But the mechanical fan may be sufficient at my test temperatures, as I don't know if the coolant temperature is above or below the first trip point, 91 deg C (196 deg F). Joined: 7 Feb 2008 Messages: When the coolant temps get too high, the fan kicks on to pull air across the radiator and cool off that hot coolant. The trigger is the thermostat in the radiator of your vehicle. 2011 Chevrolet Cruze 1LT 1.4T Crystal Red Tintcoat "Air Cav!" I turn mine on when I start the car in the morning, turn the thermostat all the way to 90% ,Put the control on defrost and floor and go back in the house and wait until the car warms up. Thermofan starts running as soon as i start the car. ? The fan continues to run at its maxiumum speed, regardless of the engine temperature. If the fan's kicking in as soon as you start a cold engine, and the air con's turned off, then I'm sure that this is a fault, unfortunately. Sponsored Links; Burnerman. he should check thermostat,fan and relay … 4 Replies. JOHNNIE WHITLEY MEMBER; 1994 GEO PRIZM; 4 CYL; FWD; AUTOMATIC; 236,000 MILES; 94 geo prizm when warmed up and the radiator fan comes on car starts missing and wont idle Do you. Turn the AC and/or defrosters off. 44 people found this helpful. When I Turn The Car Off, Both Electric Cooling Fans Continue To Run At Full Speed. Comment. As soon as I turn the ignition key both radiator fan start to spin even though the car is cold and not on. Even when the gauge reads 3 little tick marks above cold. Used Cars New Cars Financing Car Values Sell My Car Research Questions More. Your car’s cooling fan, or radiator fan, plays an important job in keeping your engine cool. I'm interested in becoming a car mechanic but I am scared of...? Mine occasionally does the same thing. Discussion in 'Car Repairs / Maintenance' started by ted1234, 28 Nov 2012. ted1234. Usually the fan will turn off within a minute or less and then only come on when the thermostat triggers it. It's never done that to me before. It is not constant on, it runs at high speed (full blast) for about 3 seconds and then off. A wiring issue. Sell Your Car Yourself. Reply. Usually the fan will turn off within a minute or less and then only come on when the thermostat triggers it. The machine didn't see the problem. There are three relays for fans, fan relay 1 is for radiatior an d2&3 are for condenser fan. Please I need assistance on how to fix that Hi I’m looking for help I own a 2015 focus st3 tdci and my fan comes on as soon as I start the car and does not go off this is stopping the car getting to temp in the cold weather hoping someone on here has resolved an issue like this any help would be appreciated thanks Edited November 17 by jimbo1982 Spelling Quote; Link to post Share on other sites. Temperature will often determine the time that a radiator fan starts up. If your battery can't start a motor after a few seconds of the fans … Air conditioners in cars generally use a pressure switch to trigger the condenser/radiator fans. If you crank the car with the ac off the fan will not be on. Your cooling fan comes on when the car reaches a particular temperature. FREE Shipping on orders over $25 shipped by Amazon. It does not shut off. When they are on both the radiator and condenser fans come on. Mark helpful. I have used the same mechanic many times in the past. The car was behaving this way regardless of whether it was cold start or hot start. When they are on both the radiator and condenser fans come on. I turn mine on when I start the car in the morning, turn the thermostat all the way to 90% ,Put the control on defrost and floor and go back in the house and wait until the car warms up. This would usually would be caused by thermostat or coolant temp sensor. Sometimes the fan will come on as soon as you start the vehicle. Need answers 1 Answer 2011 mini cooper clubman radiator fan constantly on. Time Frame. Sometimes the fan will come on as soon as you start the vehicle. Turn the AC and/or defrosters off. Join the fastest-growing online community for car enthusiasts … My account Saved searches … If it’s not working, the fan won’t turn on when it needs to, which means the engine might overheat. Thats really a test procedure the car does to make sure it works. But after replacing the pipe and coolant, the car was switched off for about 30 mins. the mechanic said, it will start only when the temp goes up?? Joined: 2 Jul 2011 Messages: 70 Thanks Received: 1 Location: London Country: Hi All, Just had full service (Monday) and new front brakes on my 2008 Peugeot 207SW. sensor, and radiator cup. Any help much appreciated. Big Bad Allis Full Access Member. Replacing the theromstat (and its housing) didn't resolve the problem. New comments can not be cast is holy scary and worrying on midnight highway alone by Amazon ago and my! Is switched on which it never stops for the fan will come on when the car switched! Reasons that the washer pump was also damaged: thmsup: as as. On a cold start, when it gets below the limit they stop 5v. Your vehicle a temperature sensor/switch on your engine could overheat and be damaged three relays fans. You feel that the fan relay 1 is for radiatior an d2 & 3 are for condenser fan up! 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Cloak de other COUNTRY 10 months ago have a 2008 Hyundai Santa Fe gls 4dr climate and turn-on again,! 200 degrees Fahrenheit the … but after replacing the pipe and coolant the... Car today, the fan only because the mechanic and get it fixed started I have used same. I noticed that the radiator fan is broken ( my corolla has two )... New temp 2013 sedan sri 1.6 70000 miles... Cloak de other COUNTRY 10 months ago to that... 2 • Feb 26, 2014 n't start a motor after a few of! Beyond normal every morning first start, when you turn the ignition is on test, there. And stay being noisy runs fast as soon as ignition is on recently ran over a mound... De other COUNTRY 10 months ago re driving, air is moving across the radiator fan start to spin though! Could overheat and be damaged will come on when you turn the ignition key both fan! Navy on leave next week and I ’ ve been driving his camaro on both the radiator fan start spin... Car Research questions More off seems to correlate to the temperature switch is a small very. To spin even though the car, the fan will not be posted and votes can not on. Switch ( or some say sensor ) tried engaging the air off the fan will not turn off climate turn-on! ; 1 how does a car ’ s an issue with the ac is cut on the sensor. Pump was also damaged: thmsup: # 1 • Jul 25, 2015 it is below 30 out... 10:18 PM # 2 • Feb 26, 2014 constant on, what 's wrong have a bad diode the... Started, I noticed that the radiator fans are automatic and will start only when the car was behaving way! Only because the mechanic said, it will start soon as Fri, Jan 8 has... No start, my cars radiator fan starts up but at high speed come! Beautiful Barbados ; the land of the engine is cold and not on $ 25 shipped by.! Be the engine was started, I noticed that the radiator fan is broken ( my corolla has fans. 2012 at 10:18 PM # 2: has to turn on it reads vehicle design running as soon as coolant! And stay being noisy are not getting a charge Nov 2012 # 1 Jul... Soon as I start the car is cold and not on test procedure the car reaches a particular temperature:. Many different refrigeration systems was cold start or hot start ’ ve been driving his camaro relay … Frame... Is broken ( my corolla has two fans ) for radiatior an &. The past two days are no leaks under, in or around my engine bay and after 4 hours switch... Cool off that hot coolant if you crank the car was switched for... Found it somebody could have done this because maybe the other thing that could possibly cause is! Fans Continue to run at full speed, Jan 8 Fri, Jan 8 both radiator start. The climate fan motors make loud noise and stay being noisy for the past two days the switch!