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.
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.
What was the air temp when the radiator fan came on?
Conditions: Air temperature 30 degrees F. Front defrost button on. Auto shut off mode was active (fuel saving mode). As some point along her 20 mile trip the radiator cooling fan came on.
When does a computer fan turn on and off?
The computer turns the cooling fan on and off when it receives a temperature indication from the coolant temperature sensor. When the temperature exceeds a specific value — usually 215 degrees Fahrenheit — the computer will turn the fan on.
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.
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,
What causes a radiator fan to stop working?
Voltage spikes, high resistances in control circuits, defective vehicle batteries, bad wiring, short circuits, moisture, corrosion, and even excessive vibration due to damage to the fan itself can all cause a fan motor to fail.
Why does radiator fan not working?
- the first thing to check is the fuse. If you don’t know where the…
- check the fan wires. Start by unplugging the wires.
- Temperature Sensor. The temperature sensor determines when the radiator fan comes on by reading the cooling system…
- Coolant Level. Check the coolant level in your engine. The simplest way to do this is to look at the reservoir in the…
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.
Conditions: Air temperature 30 degrees F. Front defrost button on. Auto shut off mode was active (fuel saving mode). As some point along her 20 mile trip the radiator cooling fan came 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.
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.