How do you test an engine cooling fan?

Unplug the fan connector closest to the fan. Make up some jumper cables. Then connect them directly, from the battery to the fan motor, to see if it spins. Consequently, if it does not spin it is blown.

Why does the radiator fan run all the time?

The radiator fan may run up to five minutes and sometimes longer. Unless there is an electrical issue, it may stay on all the time until it drains the battery. When the engine is running, the coolant circulates from the engine and flows to the radiator, where heat is dissipated.

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,

What to do if your radiator fan won’t shut off?

EASY FIX.. – YouTube If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer. An error occurred while retrieving sharing information.

What happens to the coolant when the engine is turned off?

When the engine is running, the coolant circulates from the engine and flows to the radiator, where heat is dissipated. When the engine is turned off, the coolant doesn’t circulate, and the heat stays trapped, therefore prolonging the engine from cooling. Running cooling fans help cool down the engine even after you turn off the car.

Why does the radiator cooling fan not stop when vehicle is shut?

As some point along her 20 mile trip the radiator cooling fan came on. I thought this was odd due to the air temperature. At stops the engine shut off as expected. Cooling fan continued to run. When she arrived at her destination she turned the vehicle off. Cooling fan continued to run. She called me.

Can a car fan still run after the engine is turned off?

Then you notice the engine cooling fan is still running even though the car is turned off. It is ok for the engine cooling fan to keep running for a few minutes after turning off the car. Your car fan will run for a few minutes after you turn off the car then turn off. This is normal in many vehicles, such as BMW or Mercedes-Benz.

How long does radiator fan stay on in Chevy Silverado?

They run from the time i turn the truck on to the time I shut it off. minutes and kick back on. Slow then fast then back to slow. No check engine light. No overheating. The gauge on the dash reads between 185 and 210. No effect on my truck’s performance. The only thing affected is my A/C. between 40 and 70 degrees outside.

What to do if your cooling fan won’t turn on?

Pull the cooling fan relay out of the box. Replace the cooling fan relay with a new one. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off. The computer looses power with the key off and the same applies to the coolant temperature sensor.