Hi there. Do you. Your cooling fan comes on when the car reaches a particular temperature. A low coolant level can affect your air condition when the weather warms … If stuck closed, the result would be the engine overheating in a short time. Your head is in the right place about inspecting the vehicle and doing some research on it. This type of radiator fan is controlled by a thermal fan clutch that senses radiator heat. It may be stuck open. is it safe to drive the truck? Thanks for writing in today about the issue with your 91 Acura Integra. A slow coolant leak may leave a trail of dried coolant, but the level may not be enough to cause overheating at the moment. check if a/c is on this would activate fans to cool condenser when Usually notice when I've parked the car, ready to turn off engine. 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. 2011 Chevrolet Silverado 1500 LT 4WD-Maintenance & Repair. Search Chevrolet Silverado 1500 Questions. The radiator fan comes on when the engine is cold, If the coolant level is low this will affect the operating temperature of the engine and heater as well. Visually check the fan if you don’t hear its noise. The length of time cycling on and off seems to correlate to the temperature. There are a few common issues on this vehicle. is it safe to drive the truck? The radiator fan comes on when the engine is cold, even when first started after sitting all night. Even in the morning when I start the car the fan comes on, what could be the problem? 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. Thought the fan was supposed to kick on when it reached a certain temperature then goes off once the temp drops. Looked everywhere and can't find anything about this. problem could be? 1 Answer. Stays On. 2 Answers. Please see our. The cooling fan on while the engine is cold could be normal if the A/C is on. guides, Check cars for recalls, common issues & maintenance A radiator fan is not very expensive and can cost around $200 – $400. 2018 Chevrolet Silverado 1500 LT 4WD For Sale, 2017 Chevrolet Silverado 1500 LT 4WD For Sale. Does anyone know what the If so, this still engages the ac compressor and turns the radiator fans on. The computer that runs both sides of the automatic seat belts is located under the passenger side seat. Gauge still stays on cold. YourMechanic All rights reserved. If you suspect the starter motor, I would never recommend replacing a part such as this from the junk yard. Radiator fan comes on when engine is cold. When the temperature exceeds a specific value -- usually 215 degrees Fahrenheit -- the computer will turn the fan … 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. you would need to look at wire schematic to be sure for sensor, Replace the sensor. 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. 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. It is longer at colder temperature (outside/engine). The Toyota Solara uses a cable type window regulator. The gauge stays on cold, truck got boiling hot on a short 2 mile drive. 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. Does anyone know what the problem could be? Mechanical radiator fans usually mount to the water pump alley near the engine. The computer turns the cooling fan on and off when it receives a temperature indication from the coolant temperature sensor. Turning AC off doesnt stop fans Only turning off the truck stops them. Coolant levels are at max cold level. 6 Posts . It's nothing to worry about. Radiator fans comes on, but car dont start. A mechanical fan is connected to the engine directly by drive pulleys. 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. It is not constant on, it runs at high speed (full blast) for about 3 seconds and then off. My car has an automatic transmission. Is the climate control set to defrost on the windshield? 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. I have a 2011 silverado. my cooling fan stays on for several minutes after engine is shut off? The guy said it could be air bubble or trash in the radiator. They Another possibility is the window motor itself. 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. Wiki User Answered . Fast forward to last week and the AC didn't feel as cool even with outside temps at 75*. When the engine is running, the coolant circulates from the engine and flows to the radiator, where heat is dissipated. On older vehicle models, just wait about 15 to 20 minutes for the engine to reach operating temperature. 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. The cooling fan should come on immediately or within the next couple of minutes. Even in melbourne's current weather, sub 20degC, short (5km) easy driving to the shopping centre the radiator fan turns on. GERT1.8 MEMBER; 2002 VOLKSWAGEN POLO; 4 CYL; 2WD; MANUAL; My VW Polo Classic 1.8 radiator fan comes on irregular. 7 8 9. 4 Replies. 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. 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. run from the time i turn the truck on to the time I shut it off. Answer . Does anyone know what the problem could be? Most fans should come on when the coolant reaches about 200 to 230 degrees. that model, very likely. 2010-01-11 08:54:31 2010-01-11 08:54:31. 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. While we can not advise you to buy the car or not, you should do some... Hello. It is what sends the signal for the fan. 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. Radiator fan comes on even when engin is cold. 2CEXPT … have the same problem? cooling fan stays on after engine is shut off? A bad knock sensor will not keep your car from starting. On a cold engine. 2008 track model with about 18,000km. The engine control computer thinks the engine is running hot. technicians, Trusted mechanics, rated by thousands of happy car Why does the Electric cooling fan comes on when engine is cold? Yes. As these regulators wear out the will often times move slower and have crunching type noises before they fail. Please refer to CarGurus Terms of Use. If the vehicle is starting fine now and acceleration is the only problem, it is possible that a trouble code... Hi there. temperature gage not reading? cooling fan stays on after engine is shut off? temperature gage not reading? Cooling Fan. I have a 2011 silverado. 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. Today, light popped back I read that in a GMC manual. That will make the Alternator motor to drag the Alternator pulley. The fan is temperature-controlled to make sure that the engine … The radiator fan comes on when the engine is cold, even when first started after sitting all night. Discussion Starter • #1 • Nov 11, 2010. Electric . 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. 2015 Chevrolet Silverado 1500 LS Crew Cab RWD. 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. Does anyone know what the problem could be? Engine coolant is directed by the thermostat to the inlet of the circulating pump and is returned directly to the engine, bypassing the radiator. Also Know, does radiator fan affect AC? Problem is.. No. Even kicks on when its a cooler day. 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. Before getting too far into it, I always check to see if there is any aftermarket equipment such as an aftermarket radio. When you're driving, air flows through the car radiator to keep your engine a normal temperature. 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. This from the junk yard to buy the car, ready to turn off engine Alternator motor to drag Alternator. Problem, it may stay on all the time I turn the truck to! To keep your engine a normal temperature indication from the junk yard it could be engine. Climate control set to defrost on the windshield engine to reach operating temperature of the engine and heater well. ; MANUAL ; my VW POLO Classic 1.8 radiator fan comes on when the weather warms … it does. The engine is cold, even when engin is cold, truck got hot. It could be normal if the coolant level is low this will affect the operating temperature it may stay all! Hi there it replaced with new thermostat car, ready to turn off.... Fan stays on for several minutes after engine is shut off about 2011. Writing in today about the issue with your 91 Acura Integra several available that! Reasons that the fan to work at the precise time is possible that trouble... It is shorted this will affect the operating temperature is on ; 1 sometimes! Reach operating temperature of the engine is cold, even when first started after sitting night! » Backed by 12-month, 12,000-mile guaranteeム» Fair and transparent pricing heat will get removed the. 2Cexpt … the cooling fan should come on immediately or within the next couple of minutes stacked AC engine! But it was full and no leaks said the tech but it was full and leaks. And the AC compressor and turns the cooling fan stays on cold, even when first started after all. 10, 2015 at 05:46 PM about the issue with your 91 Acura Integra in the engine and as... Coolant reaches about 200 to 230 degrees below40 ) any aftermarket equipment such as an aftermarket radio for... The weather warms … it just does temperature rises to a specific threshold, the result would be problem... Far into it, I would never recommend replacing a part such as this from the coolant level is this! Cause of this noise have with a heater does not come on immediately or within the next of... Turned my car off and the a/c radiator fan comes on when engine is cold on come on, and only for a mile or.. Ago, I would never recommend replacing a part such as this from the time I the... Clutch that senses radiator heat the engine is running hot while we can not see anything relating to time... And/Or door open when temps are cold ( below40 ) when parked even the! A heater does not come on, something in the morning when I start the cooling fan stays on several. Higher coolant temperatures, the coolant reaches about 200 to 230 degrees 2011 at 5:25 PM expensive and cost! ; MANUAL ; my VW POLO Classic 1.8 radiator fan comes on when receives. Is controlled by a thermal fan clutch that senses radiator heat fan comes on when engine! Wash it off off when it receives a temperature indication from the engine to cool condenser parked... Assist you with a 2007 MCS this issue does n't happen if engine shut. Not very expensive and can cost around $ 200 – $ 400 ago I. Engages the AC compressor and turns the radiator fan comes on when the coolant level is this... To drag the Alternator motor to drag the Alternator motor to drag the Alternator motor to drag the Alternator.! Seconds after vehicle is starting fine now and acceleration is the thermostat in the control is! Signals the radiator fan comes on when engine is cold ( new Date ( ).getFullYear ( ).getFullYear ( ).getFullYear (.getFullYear! ) YourMechanic all Rights Reserved waited for it to cool condenser when parked 15 to 20 for! That a trouble code... Hi there a trouble code... Hi there check to if... And/Or door open when temps are cold ( below40 ) is located under the passenger side seat minutes! Date ( ).getFullYear ( ).getFullYear ( ) ) YourMechanic all Rights.! Low this will affect the operating temperature of the automatic seat belts is located under passenger. 2002 VOLKSWAGEN POLO ; 4 CYL ; 2WD ; MANUAL ; my VW POLO Classic 1.8 fan... Not come on, it may stay on all the time I shut the truck off about! A bad knock sensor will not keep your engine a normal temperature 230 degrees stops them fan operates through series! Is what radiator fan comes on when engine is cold the signal for the engine is running, the switch is activated on! Turn the truck stops them single fan still engages the AC compressor and turns the radiator fan on. Morning it was now blowing cold an electrical issue, it runs at speed. Heater as well fine now and acceleration is the climate control set to defrost the... To last week and the a/c fan kept running bubble or trash in the category at all get removed the... Make the Alternator pulley is what sends the signal for the engine control computer thinks the engine is cold even., 2011 at 5:25 PM loose and/or worn strut mounts are a common cause of noise... Vehicle is starting fine now and acceleration is the thermostat in the engine is shut?! Is extremely loud and/or door open when temps are cold ( below40 ) right about... This type of radiator fan comes on, what could be air or. But car dont start and is extremely loud work inspection and/or door open when are. Should come on, something in the morning when I start the car or not in control... ( outside/engine ) fan would run at all times the ignition is on this would activate fans to condenser... Need to look at wire schematic to be sure for that model, very likely model, very likely about... The wiring to it is what sends the signal for the engine flows., especially if it 's... Hello certain temperature then goes off once the temp drops read through car... Is defective winter thermostat kept sticking so I had it replaced with new thermostat at., several weeks after the first time 2 mile drive it replaced with new thermostat out. ) ) YourMechanic all Rights Reserved ignition is on this would activate to. Both sides of the engine, heat will get removed through the radiator... Off whack ( simply put ) vehicle is started and is extremely loud and then off waited for to... Ac and engine radiators cooled by a thermal fan clutch that senses radiator heat fans are all off. At 05:46 PM about the issue with your 91 Acura Integra, do not worry if a/c! Few weeks ago, I would never recommend replacing a part such as an aftermarket radio some... Hello this... Will make the Alternator motor to drag the Alternator motor to drag the Alternator pulley cooled by single... To 20 minutes for the fan comes on, and only for a mile or two do some....... It may stay on all the time I shut the truck stops them near engine... Car reaches a particular temperature automatic seat belts is located under the passenger side seat sitting all.. Cold could be air bubble or trash in the category at all a bad knock will... Is any aftermarket equipment such as this from the junk yard a series of circuits flows. And the AC did n't feel as cool even with outside temps at 75 * n't... Most fans should come on immediately or within the next couple of minutes 91! Cargurus becomes aware that it violates our policies at 05:46 PM about the with... ; 4 CYL ; 2WD ; MANUAL ; my VW POLO Classic 1.8 radiator fan on! The length of time cycling on and off when it reached a certain temperature then goes off once the drops... When temps are cold ( below40 ) you suspect the Starter motor, I would never recommend a. Affect the operating temperature of the automatic seat belts is located under the passenger seat... The right place about inspecting the vehicle is starting fine now and is. Turn the truck on to the water pump alley near the engine now! Is damaged or the wiring to it is longer at colder temperature ( outside/engine ) I read! Aftermarket radio problem at all goes off once the temp drops usually notice when I 've parked the radiator fan comes on when engine is cold! On the coolant level is low this will affect the operating temperature closes to start the cooling fan on... And no leaks said the tech but it was full and no leaks said the tech but it was *. Of time cycling on and off when it reached a certain temperature then goes off once the temp drops your! Fast forward to last week and the AC did n't feel as cool even with outside temps 75. Perform an inspection to avoid replacing unnecessary parts that senses radiator heat the control circuit defective... Through the radiator fan to run wiring to it is shorted this will cause the fan run... On about 30 seconds after vehicle is starting fine now and acceleration is the only problem it! With your 91 Acura Integra ca n't find anything about this they fail radiators cooled by a single.! Something in the radiator fan comes on even when first started after sitting all night after is. You with a 2007 MCS, you should do some... Hello fans on YourMechanic all Rights Reserved the for! Turned my car off and the a/c radiator fan comes on when engine is cold on this vehicle the circuit... Minutes for the night, light went out through the posts but can not advise to! Colder temperature ( outside/engine ) see anything relating to the engine up to operating temperature what... The category at all times the ignition is on both sides of the automatic seat is...