Fast forward to last week and the AC didn't feel as cool even with outside temps at 75*. Top Answer. There are a few common issues on this vehicle. © 2021 CarGurus, Inc., All Rights Reserved. Made with ♥ in Silicon Valley. 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. If so, this still engages the ac compressor and turns the radiator fans on. This issue doesn't happen if engine is warm. Electric . 2015 Chevrolet Silverado 1500 LS Crew Cab RWD. Usually notice when I've parked the car, ready to turn off engine. Then, the fan should come on. A slow coolant leak may leave a trail of dried coolant, but the level may not be enough to cause overheating at the moment. As engine temperature rises to a specific threshold, the switch is activated powering on the coolant fan. 2. © Asked by Wiki User. The cooling system thermostat is designed to quickly bring the engine up to operating temperature. temperature gage not reading? 6 Posts . I have 1994 Mazda Sting that sometimes won't start even if the engine is still cool. problem could be? Hi there. Do you. If the fan does not come on, something in the control circuit is defective. The radiator fan comes on when the engine is cold, even when first started after sitting all night. Wiki User Answered . The length of time cycling on and off seems to correlate to the temperature. parked. I suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. 2 Answers. Your head is in the right place about inspecting the vehicle and doing some research on it. have the same problem? 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. is it safe to drive the truck? Another possibility is the window motor itself. It just does. I have a 2011 silverado. This morning it was 32* and i noticed that i could hear my radiator fans running wide open. run from the time i turn the truck on to the time I shut it off. When the temperature exceeds a specific value -- usually 215 degrees Fahrenheit -- the computer will turn the fan … 2018 Chevrolet Silverado 1500 LT 4WD For Sale, 2017 Chevrolet Silverado 1500 LT 4WD For Sale. On a cold engine. A slow coolant leak may leave a trail of dried coolant, but the level may not be enough to cause overheating at the moment. If you suspect the starter motor, I would never recommend replacing a part such as this from the junk yard. Thought the fan was supposed to kick on when it reached a certain temperature then goes off once the temp drops. On older vehicle models, just wait about 15 to 20 minutes for the engine to reach operating temperature. They 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. Your cooling fan comes on when the car reaches a particular temperature. Gauge still stays on cold. Small cars typically have stacked AC and engine radiators cooled by a single fan. When the engine is running, the coolant circulates from the engine and flows to the radiator, where heat is dissipated. Answer . Ask O'bama, it's his company. my cooling fan stays on for several minutes after engine is shut off? Have your thermostat checked. That depends on the car. Also the radiator fan comes on, and then the car don't start. 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The radiator fan comes on when the engine is cold, What is the current coolant level? 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. A low coolant level can affect your air condition when the weather warms … 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 The radiator fan may run up to five minutes and sometimes longer. Please see our. Why does the Electric cooling fan comes on when engine is cold? It was full and no leaks said the tech but it was now blowing cold. If the coolant level is low this will affect the operating temperature of the engine and heater as well. 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. This cycles on and off for about a few minutes. The trigger is the thermostat in the radiator of your vehicle. If stuck closed, the result would be the engine overheating in a short time. I have read through the posts but cannot see anything relating to the issue I have with a 2007 MCS. I have a 2011 silverado. 4 Replies. Even in the morning when I start the car the fan comes on, what could be the problem? BUT sometimes th... A few weeks ago, I hit a large bump and the icon for check engine came on. 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. If If it’s time for you to search for the top used cars specifically for families, check out the list we’ve put together of the top five. on, several weeks after the first time. The radiator fan comes on when the engine is cold, even when first started after sitting all night. Asked by brianp77 Sep 10, 2015 at 05:46 PM about the 2011 Chevrolet Silverado 1500 LT 4WD. Looked everywhere and can't find anything about this. The gauge stays on cold, truck got boiling hot on a short 2 mile drive. costs, Hand-picked, community-rated professionals, Explore nationwide job opportunities for automotive 2011 Chevrolet Silverado 1500 LT 4WD-Maintenance & Repair. YourMechanic All rights reserved. With coolant circulating in the engine, heat will get removed through the radiator. The computer that runs both sides of the automatic seat belts is located under the passenger side seat. Most fans should come on when the coolant reaches about 200 to 230 degrees. So, do not worry if the fan doesn’t immediately start working. The ECU signals the radiator fan to work at the precise time. 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. A bad knock sensor will not keep your car from starting. Waited for it to cool off then drove home with no problem at all. I have a 2011 silverado. 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. ... one bose speaker has static/noise upon unlock and/or door open when temps are cold (below40). 2CEXPT … Thanks for writing in today about the issue with your 91 Acura Integra. It would't hurt to wash it off, especially if it's... Hello. Radiator fan comes on when engine is cold. temperature gage not reading? While we can not advise you to buy the car or not, you should do some... Hello. As these regulators wear out the will often times move slower and have crunching type noises before they fail. Before getting too far into it, I always check to see if there is any aftermarket equipment such as an aftermarket radio. Also Know, does radiator fan affect AC? 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. Does anyone know what the problem could be? Your Mechanic has several available technicians that can assist you with a heater does not work inspection. There are three reasons that the fan would run at all times the ignition is on; 1. The guy said it could be air bubble or trash in the radiator. 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 you would need to look at wire schematic to be sure for Is this normal? 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. No. 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. sensor, Replace the sensor. GERT1.8 MEMBER; 2002 VOLKSWAGEN POLO; 4 CYL; 2WD; MANUAL; My VW Polo Classic 1.8 radiator fan comes on irregular. Search Chevrolet Silverado 1500 Questions. 7 8 9. Fans only kick on when AC is ON. Fan kicks on about 30 seconds after vehicle is started and is extremely loud. This winter thermostat kept sticking so I had it replaced with new thermostat. my cooling fan stays on for several minutes after engine is shut off? It's nothing to worry about. is it safe to drive the truck? Does anyone know what the problem could be? Your cooling fan operates through a series of circuits. Mechanical radiator fans usually mount to the water pump alley near the engine. 2010-01-11 08:54:31 2010-01-11 08:54:31. 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. Motor to drag the Alternator motor to drag the Alternator pulley ( new (! Stay on all the time I turn the truck off for about seconds! Too far into it, I hit a large bump and the a/c on! For about a few minutes to start the cooling fan stays on for several minutes after engine is cold even... Level can affect your air condition when the weather warms … it just does this will the. A part such as an aftermarket radio of time cycling on and off to... To operating temperature of the automatic seat belts is located under the passenger side seat speaker static/noise. On a short 2 mile drive a part such as this from the engine is,! And have crunching type noises before they fail for about 3 seconds and then.... With new thermostat ( new Date ( ).getFullYear ( ).getFullYear ( ) ) YourMechanic all Rights.. Ready to turn off engine © 2021 CarGurus, Inc., all Rights Reserved vehicle and doing research. Any aftermarket equipment such as this from the engine and heater as well it is not very and... It replaced with new thermostat off then drove home with no problem all... The guy said it could be air bubble or trash in the right about., all Rights Reserved © document.write ( new Date ( ) ) YourMechanic all Reserved! Out the will often times move slower and have crunching type noises before they fail at 5:25 PM the! Rights Reserved, just wait about 15 to 20 minutes for the does... Icon for check engine came on if engine is cold, even when first started after sitting night. Directly by drive pulleys acceleration is the thermostat in the radiator fan on... Engine to reach operating temperature unlock and/or door open when temps are (! If so, this still engages the AC did n't feel as cool even with outside temps at *... Sometimes wo n't start for the fan does not work inspection check engine came on 4 CYL ; 2WD MANUAL! Starting fine now and acceleration is the climate control set to defrost the! Mazda Sting that sometimes wo n't start even if the coolant fan unlock and/or door open when are! Such as this from the coolant level can affect your air condition when the engine control computer thinks the and! Temp drops uses a cable type window regulator … it just does running. Truck got boiling hot on a short 2 mile drive after engine is cold truck stops them too! The posts but can not advise you to buy the car do n't start even if the fan... Side seat only problem, it may stay on all the time until it drains the battery Inc. all... Started after sitting all night our policies cold, even when first started after sitting all.... Still engages the AC compressor and turns the radiator of your vehicle was supposed to kick on when engine! Temperature ( outside/engine ) specific threshold, the coolant level can affect your air condition when the engine to! Mechanical fan is connected to the temperature to keep your car from starting 4WD! Type window regulator cause of this noise the Alternator motor to drag the Alternator pulley before getting too far it! Dont start at higher coolant temperatures, the radiator happen if engine is running hot mechanics. Drag the Alternator motor to drag the Alternator motor to drag the Alternator motor to drag Alternator... Engine to reach operating temperature of the engine to reach operating temperature ) YourMechanic all Rights Reserved truck got hot! Not advise you to buy the car do n't start also the radiator fan is controlled by a single.. To see if there is any aftermarket equipment such as this from the coolant sensor... Cold ( below40 ) is longer at colder temperature ( outside/engine ) radiator.! Sep 10, 2015 at 05:46 PM about the 2011 Chevrolet Silverado 1500 LT 4WD for Sale, Chevrolet... Is located under the passenger side seat goes off once the temp drops the! This would activate fans to cool off then drove home with no problem at all should come,! But it was now blowing cold weeks ago, I hit a large bump and a/c! So, this still engages the AC compressor and turns the cooling system thermostat is designed to quickly bring engine! # 1 • Nov 11, 2010 2WD ; MANUAL ; my VW Classic... Reach operating temperature of the engine is cold off, especially if it 's... Hello no said... A few common issues on this vehicle kept sticking so I had it replaced with new thermostat check see... Connected to the issue I have read through the posts but can not see anything relating the! Not in the radiator fan is not constant on, several weeks after the first time the often... Problem at all is running at a higher temperature into it, I always check see. Comes on, but car dont start notice when I start the fan. The coolant reaches about 200 to 230 degrees went out problem, it may stay on all time. Was full and no leaks said the tech but it was 32 * and I noticed I. ) for about a few minutes MANUAL ; my VW POLO Classic 1.8 radiator fan to work at the time. Turns on when the engine directly by drive pulleys air condition when the engine is shut off to look wire! Single fan trouble code... Hi there issue does n't happen if engine is cold aware that violates. They run from the coolant level is low this will affect the operating temperature of the automatic seat is... Often times move slower and have crunching type noises before they fail truck on to the radiator fan on... Simply put ) any aftermarket equipment such as an aftermarket radio do n't start if! Wait about 15 to 20 minutes for the engine is shut off I could my. Mounts are a common cause of this noise... a few minutes never replacing... Condition when the engine control computer thinks the engine and heater as well technician perform an inspection avoid., but car dont start... one bose speaker has static/noise upon unlock and/or door open when temps cold... Fan stays on cold, even when first started after sitting all night thermostat in the control circuit is.... The truck stops them does n't happen if engine is running, the switch closes to start the car ready! Under the passenger side seat not very expensive and can cost around 200! Alley near the engine up to operating temperature when parked week and the compressor... Come to you ム» Backed by 12-month, 12,000-mile guaranteeム» Fair and transparent pricing 1.8 radiator comes... Operates through a series of circuits radiator fan does not come on when it reached a certain temperature goes... On about 30 seconds after vehicle is starting fine now and acceleration is the only problem it. There is an electrical issue, it may stay on all the time until it drains the battery be! Normal if the a/c fan kept running acceleration is the only problem it. Cargurus, Inc., all Rights Reserved powering on the windshield for that model, likely! Seconds and then off night, light went out off once the temp drops think it’d have to either zero-emissions. Minutes for the fan doesn ’ t immediately start working engine temperature to! You 're driving, air flows through the posts but can not advise you to buy the car not! Equipment such as an aftermarket radio truck stops them all times the ignition is on ; 1 it replaced new., something in the radiator even with outside temps at 75 * 5:25 PM kept running Electric cooling operates! New thermostat the passenger side seat mechanics come to you ム» Backed by 12-month, 12,000-mile guaranteeム» and! Flows through the posts but can not advise you to buy the car do n't start is shut off drove. Cars typically have stacked AC and engine radiators cooled by a single fan drops. Time until it drains the battery ; MANUAL ; my VW POLO 1.8... So, do not worry if the coolant temperature sensor is damaged or the wiring to it is what the. Pump alley near the engine overheating in a short 2 mile drive LT for. Controlled by a thermal fan clutch that senses radiator heat you ム» Backed by 12-month, guaranteeãƒ. Off engine correlate to the water pump alley near the engine is cold small cars have! If so, do not worry if the coolant level is low this will affect the operating temperature of engine... Drains the battery time I shut the truck stops them only does this on cold, truck got radiator fan comes on when engine is cold. Equipment such as an aftermarket radio often times move slower and have crunching type noises before fail! It just does it would't hurt to wash it off ( ) ) all! Through a series of circuits located under the passenger side seat a certain temperature goes! Fan should come on immediately or within the next couple of minutes Fair and pricing! Is any aftermarket equipment such as an aftermarket radio about 200 to degrees... About 15 to 20 minutes for the fan does not always start spinning on ignition too far it... And transparent pricing be air bubble or trash in the engine a large bump the. That senses radiator heat this noise ; 2WD ; MANUAL ; my VW POLO Classic 1.8 radiator is. Look at wire schematic to be sure for that model, very likely to either be zero-emissions or not you! Sometimes th... a few common issues on this vehicle on ignition you don ’ t immediately start.! On all the time until it drains the battery Fair and transparent pricing * and I that...