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.
Is the car cooling fan still on when the engine is turned off?
Car Fan Still On When Engine is Turned Off. You park your car, turn off the ignition and start walking away. 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.
Is it normal for a car fan to run all the time?
This is normal in many vehicles, such as BMW or Mercedes-Benz. 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.
How much does it cost to replace a radiator fan?
A mechanic would initially check all the other things related to the radiator fan to make a proper analysis. A radiator fan is not very expensive and can cost around $200 – $400. It’s the fan motor that makes the radiator expensive. Your mechanic would charge you $120 to $200 depending on the make and model of your car and the nature of the work.
Why is my XJ heat soak not working?
This can vaporize fuel in the fuel rail and/or injectors. When the engine is started, the fuel vapor can result in misfiring and stumbling and can set the CEL with codes related to cylinder misfires and/or injector malfunctions.
Is there a heat soak mod for the Jeep XJ?
The purpose of this mod is to address the heat soak issue that is common in Jeep XJ’s with the 4.0 liter inline 6 engine and this heat soak issue is especially pronounced in the 2000-2001 XJ’s.
Where is the E-Fan on a Jeep Cherokee?
The e-fan is on the same side of the engine compartment as the intake/exhaust manifolds and fuel rail and injectors. When the engine is shut-off, the e-fan time delay will cause the fan to blow air over the manifolds and out the back end of the engine compartment and will prevent the fuel rail and injectors from getting quite so hot.
Why does my car have a radiator fan?
You probably already know the purpose of the radiator and the cooling system in your car. When you are driving fast, the wind is passing through the radiator to cool the coolant down without issues, but when you are driving slow, there is no wind pushed through the radiator. This is why we use a radiator fan.
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.
When does the coolant fan run in a car?
The coolant fan will run when the coolant exceeds a certain temperature irrespective of if the engine is running or not. Some vehicles even have supplementary electric water pumps set to run after engine shut down to keep coolant circulating.
What to do if your radiator fan won’t shut off?
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Why is your radiator fan not running?
The most common causes when a radiator fan is not coming on is broken fuse, bad wirings, bad coolant temperature sensor, bad fan relay, or a faulty radiator fan . Here is a more detailed list of the most common causes of a radiator fan not coming on.
What can fan run after the car is shut 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. The radiator fan may run up to five minutes and sometimes longer.
What causes radiator fan to keep running?
Two things will make your radiator fan run on fast. Either a signal that the engine is hot or that the air conditioning condenser (located in front of the radiator) is telling it that it’s hot and to run fast to cool it down.
Why does your radiator fan keep going on and off?
Here are some possibilities causing the fan to stay running longer. low coolant level, faulty coolant temperature sensor, PCM or ECU defective. coolant leaks from the water pump, cracked radiator, worn upper or lower radiator hoses, leaky heater core, leaky thermostat housing,