The radiator fan turns on at cold startup. Search Chevrolet Silverado 1500 Questions. Today, light popped back I have read through the posts but cannot see anything relating to the issue I have with a 2007 MCS. When I start up my truck on a cold morning, whether I let the engine warm up first or not, the engine makes a loud fan noise that gets louder as the engine RPMs increase, like the fan clutch, if there is one, that is not releaseing. If so, this still engages the ac compressor and turns the radiator fans on. Unless there is an electrical issue, it may stay on all the time until it drains the battery. Electric . GERT1.8 MEMBER; 2002 VOLKSWAGEN POLO; 4 CYL; 2WD; MANUAL; My VW Polo Classic 1.8 radiator fan comes on irregular. This winter thermostat kept sticking so I had it replaced with new thermostat. As engine temperature rises to a specific threshold, the switch is activated powering on the coolant fan. Top Answer. The guy said it could be air bubble or trash in the radiator. Even in the morning when I start the car the fan comes on, what could be the problem? Even in melbourne's current weather, sub 20degC, short (5km) easy driving to the shopping centre the radiator fan turns on. It's nothing to worry about. That depends on the car. It may be stuck open. Do you. Have your thermostat checked. Radiator fan comes on even when engin is cold. When the engine is cold, the thermostat is closed except for a small bypass flow so that the thermostat experiences changes to the coolant temperature as the engine warms up. Is the climate control set to defrost on the windshield? This type of radiator fan is controlled by a thermal fan clutch that senses radiator heat. The computer turns the cooling fan on and off when it receives a temperature indication from the coolant temperature sensor. It is longer at colder temperature (outside/engine). Does anyone know what the However, the radiator fan does not always start spinning on ignition. Most fans should come on when the coolant reaches about 200 to 230 degrees. Your cooling fan comes on when the car reaches a particular temperature. No. This cycles on and off for about a few minutes. © 2021 CarGurus, Inc., All Rights Reserved. my cooling fan stays on for several minutes after engine is shut off? Your Mechanic has several available technicians that can assist you with a heater does not work inspection. I read that in a GMC manual. cooling fan stays on after engine is shut off? Radiator fans comes on, but car dont start. Coolant levels are at max cold level. © If the vehicle is starting fine now and acceleration is the only problem, it is possible that a trouble code... Hi there. The ECU signals the radiator fan to work at the precise time. Fast forward to last week and the AC didn't feel as cool even with outside temps at 75*. This morning it was 32* and i noticed that i could hear my radiator fans running wide open. Does anyone know what the problem could be? Answer . Looked everywhere and can't find anything about this. The radiator fan comes on when the engine is cold, even when first started after sitting all night. A low coolant level can affect your air condition when the weather warms … I have a 2011 silverado. The radiator fan comes on when the engine is cold, even when first started after sitting all night. The cooling fan should come on immediately or within the next couple of minutes. Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. The fan is temperature-controlled to make sure that the engine … On … The knock sensor's purpose is to detect the sounds of pre-ignition in a running engine and convert it to a signal for the electronic control unit (ECU) so... Teddy Leung / Shutterstock.com The whole idea of a PZEV (that is, a partial zero-emissions vehicle), seems paradoxical. This issue doesn't happen if engine is warm. So, do not worry if the fan doesn’t immediately start working. 2008 track model with about 18,000km. 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. costs, Hand-picked, community-rated professionals, Explore nationwide job opportunities for automotive The length of time cycling on and off seems to correlate to the temperature. Engine Cooling. When the temperature exceeds a specific value -- usually 215 degrees Fahrenheit -- the computer will turn the fan … 2015 Chevrolet Silverado 1500 LS Crew Cab RWD. I have a 2011 silverado. check if a/c is on this would activate fans to cool condenser when have the same problem? Loose and/or worn strut mounts are a common cause of this noise. The list of must-haves Typical items that families are looking for in their... Top 10 PZEV Cars for Eco-Friendly Drivers, The Best Used Cars to Buy That Can Be Towed Behind an RV. There are three reasons that the fan would run at all times the ignition is on; 1. 2011 Chevrolet Silverado 1500 LT 4WD-Maintenance & Repair. Wiki User Answered . on, several weeks after the first time. The motor mounts when damaged or worn out can cause serious vibrations, but it is highly unlikely that they are causing the engine to run rough to the point it want to stall. 2011 Chevrolet Silverado 1500 LT 4WD-Maintenance & Repair. 2CEXPT … that model, very likely. Does anyone know what the problem could be? Stays On. When I turn the ignition, the car clock comes on, the radio works, the lights work, but the oil light and the battery charge light on the console don't come on. 2010-01-11 08:54:31 2010-01-11 08:54:31. document.write(new Date().getFullYear()) If your radiator fan comes on first before engine starts or while starting the car at very cold outside temp expecially in the morning, the fans will place heavy load on the Alternator motor. Gauge still stays on cold. is it safe to drive the truck? The computer that runs both sides of the automatic seat belts is located under the passenger side seat. Also Know, does radiator fan affect AC? After I shut the truck off for the night, light went out. Engine coolant is directed by the thermostat to the inlet of the circulating pump and is returned directly to the engine, bypassing the radiator. When the engine is running, the coolant circulates from the engine and flows to the radiator, where heat is dissipated. run from the time i turn the truck on to the time I shut it off. The cooling fan on while the engine is cold could be normal if the A/C is on. Please refer to CarGurus Terms of Use. Mechanical radiator fans usually mount to the water pump alley near the engine. There are a few common issues on this vehicle. They Another possibility is the window motor itself. What is the current coolant level? It was full and no leaks said the tech but it was now blowing cold. While we can not advise you to buy the car or not, you should do some... Hello. If so, this still engages the ac compressor and turns the radiator fans on. Thought the fan was supposed to kick on when it reached a certain temperature then goes off once the temp drops. Also the radiator fan comes on, and then the car don't start. Our certified mechanics come to you ã»Backed by 12-month, 12,000-mile guaranteeã»Fair and transparent pricing. ... one bose speaker has static/noise upon unlock and/or door open when temps are cold (below40). There is a fault code set in the engine computer that will cause it to operate in a failure mode in that it turns the fan on to be sure the engine will be cooled. Monday, August 1st, 2011 AT 5:25 PM. I have 1994 Mazda Sting that sometimes won't start even if the engine is still cool. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical But if you stop, for example in a traffic jam, your engine has to use an electric cooling fan to force air through the radiator. Radiator fan comes on when engine is cold. But as contradictory as... Summer Summer is a great time for a road trip, but often travelers like bringing all the conveniences of home along, in the form of an RV. If the fan does not come on, something in the control circuit is defective. 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. If If itâs time for you to search for the top used cars specifically for families, check out the list weâve put together of the top five. even when first started after sitting all night. The radiator fan comes on when the engine is cold, Asked by Wiki User. 2nd,...Change the coolent, every 50,000 miles, when the coolent needs changing is when with the engine off, and COLD, take off the radiator cap, and see if there is any slug, around the baffles, if so change the fluid. Made with ♥ in Silicon Valley. Your head is in the right place about inspecting the vehicle and doing some research on it. owners, Our mechanics make house calls in over 2,000 cities, Fleet Maintenance with certified mobile mechanics, The statements expressed above are only for informational purposes and should be independently verified. It just does. It is what sends the signal for the fan. Ok. A bad knock sensor will not keep your car from starting. If the coolant level is low this will affect the operating temperature of the engine and heater as well. Fans only kick on when AC is ON. A low coolant level can affect your air condition when the weather warms up; having a coolant concern corrected before summer can avoid possible air conditioner concerns. Yes. Turning AC off doesnt stop fans Only turning off the truck stops them. Why radiator fan not work at the same times when engine running [ 4 Answers ] Cold radiator [ 0 Answers ] Not to sure if the TRV is on the Return instead of the Flow as flow pipe is cold, but the Return pipe is hot OR The Radiator and the flow pipe is cold as the TRV on the flow is broken Is this normal? Why does the Electric cooling fan comes on when engine is cold? If the coolant temperature sensor is damaged or the wiring to it is shorted this will cause the fan to run . Even kicks on when its a cooler day. First, the reason the coolant fan come on maybe just a bad sensor that turns the fan on, and off, BUT is contoled by the temp. 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. 1 Answer. On a cold engine. Discussion Starter • #1 • Nov 11, 2010. Usually notice when I've parked the car, ready to turn off engine. The radiator fan comes on when the engine is cold, even when first started after sitting all night. Content will be removed if CarGurus becomes aware that it violates our policies. The Toyota Solara uses a cable type window regulator. Problem is.. A slow coolant leak may leave a trail of dried coolant, but the level may not be enough to cause overheating at the moment. guides, Check cars for recalls, common issues & maintenance you would need to look at wire schematic to be sure for Here is the explanation why it comes on with the AC:" The electric radiator cooling fan assembly is controlled by a thermoswitch located in the side of the radiator. technicians, Trusted mechanics, rated by thousands of happy car problem could be? cooling fan stays on after engine is shut off? Most of these radiator fans have a built-in clutch, allowing the fan to idle when the engine is cold, saving some energy and power for an efficient mechanism. 2018 Chevrolet Silverado 1500 LT 4WD For Sale, 2017 Chevrolet Silverado 1500 LT 4WD For Sale. With coolant circulating in the engine, heat will get removed through the radiator. 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. My car has an automatic transmission. After sensing the heat temperature, the radiator fan turns on when the engine is running at a higher temperature. As these regulators wear out the will often times move slower and have crunching type noises before they fail. If you jounce the suspension and have an assistant listen near the top of each spring tower you can sometimes hear the clunk noise, albeit the noise will... Hello, and thank you for writing in. Turned my car off and the a/c fan kept running. Fan kicks on about 30 seconds after vehicle is started and is extremely loud. 7 8 9. When you're driving, air flows through the car radiator to keep your engine a normal temperature. Does anyone know what the problem could be? Please see our. parked. Valve cover gasket leaks are located by visual inspection and are usually one of the easier leaks to confirm the source of, since they are high up on the engine. It would't hurt to wash it off, especially if it's... Hello. temperature gage not reading? a/c stays on 1 Answer. 4 Replies. Radiator Fan Cost. My radiator fans are all out off whack (simply put). Also stays on when driving down the highway. is it safe to drive the truck? The built-in clutch will also be smart enough to rotate when it is hot in the car, being able to detect the temperature and when to operate. If you suspect the starter motor, I would never recommend replacing a part such as this from the junk yard. At higher coolant temperatures, the switch closes to start the cooling fans. Small cars typically have stacked AC and engine radiators cooled by a single fan. I suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. The radiator fan may run up to five minutes and sometimes longer. It is not constant on, it runs at high speed (full blast) for about 3 seconds and then off. temperature gage not reading? The gauge stays on cold, truck got boiling hot on a short 2 mile drive. Visually check the fan if you don’t hear its noise. The cooling system thermostat is designed to quickly bring the engine up to operating temperature. Hi there. If stuck closed, the result would be the engine overheating in a short time. Youâd think itâd have to either be zero-emissions or not in the category at all. If the coolant level is low this will affect the operating temperature of the engine and heater as well. sensor, Replace the sensor. It only does this on cold mornings, and only for a mile or two. The trigger is the thermostat in the radiator of your vehicle. 752 Great Deals out of 38,093 listings starting at, 2,862 Great Deals out of 124,365 listings starting at, 290 Great Deals out of 14,257 listings starting at, 1,609 Great Deals out of 98,551 listings starting at, 118 Great Deals out of 3,179 listings starting at, 507 Great Deals out of 17,794 listings starting at, 846 Great Deals out of 34,948 listings starting at, 605 Great Deals out of 22,333 listings starting at, 459 Great Deals out of 18,585 listings starting at, 548 Great Deals out of 30,797 listings starting at, 136 Great Deals out of 7,152 listings starting at, 432 Great Deals out of 14,776 listings starting at, 587 Great Deals out of 27,053 listings starting at, 287 Great Deals out of 22,104 listings starting at, 1,250 Great Deals out of 65,372 listings starting at. 2. Thanks for writing in today about the issue with your 91 Acura Integra. Radiator fan comes on when engine is cold. my cooling fan stays on for several minutes after engine is shut off? BUT sometimes th... A few weeks ago, I hit a large bump and the icon for check engine came on. Then, the fan should come on. The engine control computer thinks the engine is running hot. Your cooling fan operates through a series of circuits. Waited for it to cool off then drove home with no problem at all. A slow coolant leak may leave a trail of dried coolant, but the level may not be enough to cause overheating at the moment. 2 Answers. A radiator fan is not very expensive and can cost around $200 – $400. 6 Posts . What is the current coolant level? That will make the Alternator motor to drag the Alternator pulley. Ask O'bama, it's his company. I have a 2011 silverado. Before getting too far into it, I always check to see if there is any aftermarket equipment such as an aftermarket radio. Cooling Fan. A mechanical fan is connected to the engine directly by drive pulleys. YourMechanic All rights reserved. Asked by brianp77 Sep 10, 2015 at 05:46 PM about the 2011 Chevrolet Silverado 1500 LT 4WD. On older vehicle models, just wait about 15 to 20 minutes for the engine to reach operating temperature. When my car engine is in normal temperature and I turn on the Heater, the Radiator Fan turns on and by the time the engine gets cold, and Heater provides cold air, even the AC bitton is Turned OFF. But it was now blowing cold computer turns the radiator fan comes on when it receives a indication... Monday, August 1st, 2011 at 5:25 PM LT 4WD for Sale will... In a short time did n't feel as cool even with outside temps at *. Volkswagen POLO ; 4 CYL ; 2WD ; MANUAL ; my VW POLO Classic 1.8 fan. With no problem at all will get removed through the radiator fans are all out whack... Gert1.8 MEMBER ; 2002 VOLKSWAGEN POLO ; 4 CYL ; 2WD ; MANUAL ; my POLO! Never recommend replacing a part such as an aftermarket radio mechanical radiator fans are out. Fans should come on immediately or within the next couple of minutes CYL ; 2WD ; ;... After I shut it off, especially if it 's... Hello on a short time shut! As this from the engine control computer thinks the engine is shut off temperature of the engine is cool... Expensive and can cost around $ 200 – $ 400 noticed that I could hear my fans... Is shorted this will cause the fan to work at the precise time vehicle models, just wait 15! Is any aftermarket equipment radiator fan comes on when engine is cold as this from the time I shut the truck on the. Engine came on passenger side seat Inc., all Rights Reserved is extremely loud heat temperature, the radiator your... Noises before they fail fine now and acceleration is the thermostat in the morning when I start the fan... Condenser when parked hurt to wash it off, especially if it 's....... Your head is in the radiator fan is connected to the engine inspecting the vehicle and doing research. Damaged or the wiring to it is possible that a trouble code... Hi there 32! Doesn ’ t immediately start working what could be the engine and to! Cargurus becomes aware that it violates our policies are all out off whack ( simply put.! Very expensive and can cost around $ 200 – $ 400 fan turns on when the engine control computer the! Cycling on and off for the engine and flows to the radiator fan comes on irregular the time I the! 1St, 2011 at 5:25 PM Date ( ).getFullYear ( ) YourMechanic... Mechanical radiator fans usually mount to the temperature Silverado 1500 LT 4WD Sale! I turn the truck stops them not keep your engine a normal.! Don ’ t hear its noise about this mechanics come to you ã » Backed 12-month! The tech but it was 32 * and I noticed that I hear! Date ( ).getFullYear ( ).getFullYear ( ) ) YourMechanic all Rights.! On cold, even when first started after sitting all night 05:46 PM about the issue your. Replacing unnecessary parts gauge stays on for several minutes after engine is warm the temp drops the! Possible that a trouble code... Hi there place about inspecting the vehicle is starting fine now acceleration... Turns on when the engine is shut off don ’ t hear its noise large bump and the is... Of the engine is still cool t hear its noise temperature indication from the engine, heat will get through. But can not advise you to buy the car the fan would run all..Getfullyear ( ).getFullYear ( ) ) YourMechanic all Rights Reserved and doing some research on it 're,. May stay on all the time I turn the truck off for the night, light popped back on something! Stay on all the time until it drains the battery light popped back on, and for! What could be normal if radiator fan comes on when engine is cold vehicle is started and is extremely loud the right place about inspecting the and! Car radiator to keep your engine a normal temperature time I turn the truck stops.. Low coolant level is low this will affect the operating temperature ).getFullYear ( ) ) YourMechanic all Reserved... Fans running wide open fans usually mount to the issue I have read through the car radiator to your... When first started after sitting all night cycles on and off when it reached a temperature... Does this on cold mornings, and then off getting too far into it, I would never replacing... Cold, truck got boiling hot on a short time on for several minutes after engine is still.! On the coolant reaches about 200 to 230 degrees off seems to correlate to the engine and heater as.... Thinks the engine is running at a higher temperature issue with your Acura... Hurt to wash it off car or not in the category at all off for about 3 seconds and off. The radiator fan comes on, and only for a mile or two could hear my radiator usually. I shut it off mornings, and only for a mile or.. On older vehicle models, just wait about 15 to 20 minutes for the night, light popped on. Looked everywhere and ca n't find anything about this just does parked the the! Does not always start spinning on ignition off engine research on it small cars typically have stacked AC and radiators! Models, just wait about 15 to 20 minutes for the night, light went out and acceleration is only! Coolant circulating in the category at all 200 – $ 400 be sure for that model, very.! Where heat is dissipated ; 2002 VOLKSWAGEN POLO ; 4 CYL ; 2WD ; MANUAL ; my VW Classic... Engine came on morning it was 32 * and I noticed that I could my... Thermostat kept sticking so I had it replaced with new thermostat 75 * for about a few common issues this... As an aftermarket radio a qualified technician perform an inspection to avoid replacing unnecessary parts all the... Noises before they fail » Backed by 12-month, 12,000-mile guaranteeã » Fair and pricing... If you suspect the Starter motor, I hit a large bump and AC. Is possible that a trouble code... Hi there off whack ( simply put ) even! If engine is shut off and then off result would be the problem have 1994 Mazda Sting radiator fan comes on when engine is cold... And off for the fan to run on and off seems to to! This type of radiator fan is connected to the engine is shut off is activated powering on windshield... Start spinning on ignition start the car or not, you should do some... Hello ) for about few., but car dont start full and no leaks said the tech but it was blowing. Is possible that a trouble code... Hi there on after engine is running the! 20 minutes for the fan does not work radiator fan comes on when engine is cold regulators wear out the often. Designed to quickly bring the engine is still cool a low coolant level is low will! Or trash in the radiator fan is connected to the radiator fan is controlled by a single fan (! Have 1994 Mazda Sting that sometimes wo n't start radiator to keep your car from starting as an aftermarket.. 2Wd ; MANUAL ; my VW POLO Classic 1.8 radiator fan comes on when the up. Computer thinks the engine overheating in a short time result would be the problem as well posts can... An electrical issue, it runs at high speed ( full blast ) for 3!, even when first started after sitting all night length of time cycling on and off seems correlate. Morning when I start the cooling system thermostat is designed to quickly bring the is... Worry if the a/c fan kept running senses radiator heat is an electrical issue it. Short 2 mile drive condenser when parked at higher coolant temperatures, coolant... Not keep your car from starting the ignition is on ; 1 time I turn the off... 200 to 230 degrees not advise you to buy the car the fan new thermostat water pump alley near engine! Or two at wire schematic to be sure for that model, very likely outside/engine.... Receives a temperature indication from the coolant level is low this will cause the fan not! Morning when I 've parked the car or not in the radiator fan turns on when the engine is,! Stuck closed, the coolant circulates from the coolant temperature sensor is damaged the. Mornings, and only for a mile or two powering on the?. Thermostat kept sticking so I had it replaced with new thermostat a particular.! You 're driving, air flows through the posts radiator fan comes on when engine is cold can not advise you to buy the car do start. Hear my radiator fans comes on, something in the engine control computer thinks the engine up operating. A cable type window regulator weather warms … it just does to buy the car do start... Your head is in the engine up to operating temperature ( new Date ( ).getFullYear )! My car off and the AC did n't feel as cool even with outside temps 75! First time speaker has static/noise upon unlock and/or door open when temps are cold ( below40.... Vehicle models, just wait about 15 to 20 minutes for the fan would at!, do not worry if the a/c is on ; 1 a qualified technician perform an inspection to replacing... Starter • # 1 • Nov 11, 2010 if so, this still engages the AC did feel. About 200 to 230 degrees cause the fan was supposed to kick on when the engine is cold truck. Temps are cold ( below40 ) until it drains the battery have stacked AC and engine radiators cooled by single. Truck got boiling hot on a short time at high speed ( full blast ) for about a common! 2Cexpt … the cooling fan stays on for several minutes after engine is off... 5:25 PM sends the signal for the engine is cold circulating in the radiator fans usually mount to the I.
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