Why does my car fan start when I start the car?
1. The engine control computer thinks the engine is running hot. 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. 3.
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.
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.
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.
1. The engine control computer thinks the engine is running hot. 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. 3.
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.
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 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.
When do I Turn Off the fan on my car?
It runs normally but after I drive it for a while aand turn the ignition off long enough to fill up with gas, for example, it will not even attemt … read more 99 sc2 battery light on (recent new battery) turned car off and fan/motor kept on.
When does the radiator fan start and die?
Starts and dies after a few seconds to a minute. And yes. Yes. Since the radiator fan comes on when you start the car I’ve changed the ETCS. Checked the gas. … read more Vocational, Technical or Tra… 2008 SATURN VUE XR. ABS LIGHT CAME ON WHILE DRIVING. FIRST 2008 SATURN VUE XR. ABS LIGHT CAME ON WHILE DRIVING.
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.
https://www.youtube.com/watch?v=6HRLE5YupMY