Why does the cooling fan come on when the engine is cold?
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. How is this possible when the engine isn’t even running and the engine is cold. Again, the HVAC is off.
When does the cooling fan come on or off?
I’ve read that the cooling fan will run the whole time when either the A/C is on or the vent control is set to defrost, regardless of whether the engine is cold or hot. In my case, the cooling fan comes on when the engine is cold, even with the HVAC off and it will remain running at full speed when the engine is running, again with the HVAC off.
What are the signs of a bad cooling fan?
Common signs include the engine running hot and cooling fans either not functioning or running all the time. 1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.
Why does my car fan keep running after I Turn Off the engine?
Running cooling fans help cool down the engine even after you turn off the car. Common Causes. If your cooling fan runs for over 10 minutes after turning off the engine, you may have a problem that needs to be fixed. Here are some possibilities causing the fan to stay running longer. low coolant level, faulty coolant temperature sensor,
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. How is this possible when the engine isn’t even running and the engine is cold. Again, the HVAC is off.
I’ve read that the cooling fan will run the whole time when either the A/C is on or the vent control is set to defrost, regardless of whether the engine is cold or hot. In my case, the cooling fan comes on when the engine is cold, even with the HVAC off and it will remain running at full speed when the engine is running, again with the HVAC off.
Why do the radiator fans on my Chevy truck stay on?
After i parked and turned the truck of the fans still stayed on. So i started it back on for 20 sec. turned it off and the fans turned off. Another thing, i turned my ac to cold, but for some reason it doesn’t get cold while the temp is at 160* and the fans are running non stop.
What should I do if my engine is running cold?
Make sure the engine is cool. Start the engine and let it idle. Engage the parking brake and set the transmission to Park (automatic) or Neutral (manual). Check the fan. The fan should not run with the engine cool. If the fan runs with the engine cool, it’s locked.
Why is my engine fan running all the time?
During 2 hours of driving my engine fan was running the entire time and that obviously isn’t right! It started off ok but once the engine temp increased the fan started. Coolant level is fine, temp guage read as normal throughout the journey and yet the fan wouldn’t stop.
Why does my radiator fan run full speed when I start the car?
Immediately upon starting the car, the radiator fan begins to run full speed, even though the car is stone cold. The AC is OFF. The radiator and condenser are BRAND NEW. This problem existed before and after the radiator was replaced. The fan continues to run at its maxiumum speed, regardless of the engine temperature.
How to diagnose and fix continuously running cooling fan?
HOW TO DIAGNOSE & FIX CONTINUOUSLY RUNNING COOLING FAN EVEN THE ENGINE STOP! – YouTube If playback doesn’t begin shortly, try restarting your device.
When does the car cooling fan turn off?
Again, the HVAC is off. Once the car is started, the cooling fan will remain on until the car is shut off. The fan is running as such a high speed you can hear it over the noise of the idling engine. Once I turn the car off the fan shuts off.
When to turn on the cooling fan relay?
The relay will usually be activated once it is detected that the vehicle’s temperature approaches excessively high temperatures. Usually a faulty cooling fan relay will produce a few symptoms that can alert the driver that service may be required.
Common signs include the engine running hot and cooling fans either not functioning or running all the time. 1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.
The relay will usually be activated once it is detected that the vehicle’s temperature approaches excessively high temperatures. Usually a faulty cooling fan relay will produce a few symptoms that can alert the driver that service may be required.
Again, the HVAC is off. Once the car is started, the cooling fan will remain on until the car is shut off. The fan is running as such a high speed you can hear it over the noise of the idling engine. Once I turn the car off the fan shuts off.
Why are my cooling fans running at all times?
3. Cooling fans stay on at all times. If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.
Is the engine still hotter than the coolant?
The engine is still much hotter than the coolant. Yes, the engine still puts out heat even when it is off. You want to remove excess heat. The operating fan helps out by blowing fresh air past the engine. Perhaps there are some cars that, on very hot days, may even boil were it not for the operating fan. Caddyman July 6, 2016, 1:30am #8
Why does my air conditioner fan keep running?
If the coolant temperature sensor is damaged or the wiring to it is shorted this will cause the fan to run. 2. 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.
How to troubleshoot an electric cooling fan problem?
1.Has the Cooling Fan Actually Failed? 1 If the fan comes on when the AC is running at MAX, but doesn’t run when the engine is hot, check the temperature sensor… 2 If the fan fails to come on, first check for a fan blown fuse or triggered breaker. On older vehicle models, you may… More
Why do you need an electric cooling fan in a car?
Cooling fan helps control engine and other components temperature in the engine compartment. If the cooling system in your vehicle uses an electric cooling fan, most likely you have a transversal (sideways) mounted engine.
Is the cooling fan always on on a Subaru Outback?
Cooling fan is always on, even runs when engine is cold. Our 2011 Subaru Outback 3.6R, which we bought brand new back in Feb ’11 and only has 4k miles, seems to be having issues with the cooling fan. The cooling fan will come on when the engine is cold and it will stay on the entire time the engine is running.