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1. The engine is getting too hot. That is what the fan is for, to cool it down.
2. An electrical fault causing the fan to be on when not needed.
As for the causes of 1 & 2...
1. Failed head gasket, stuck thermostat, failed water-pump, blocked pipes, low coolant level, faulty radiator... And many others.
2. Stuck fan-switch, stuck relay, damaged wiring, Someone modified the car to make the fan on all the time... And others.
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Why does your cooling fan come on when car is just sitting?
While your car is running the engine is heating up. While your driving you have air being forced over the radiator cooling it off. When you are sitting still you don't have that air so your engine is heating up even more so the cooling fan comes on to help cool you engine off. Via cooling the radiator.
Why does your 1997 Trans am overheat while idling but not while driving?
If the car is fitted with an electric cooling fan, this may have failed. A car moving will normally get enough air to keep the radiator cool. I have known a water pump to be faulty, where the vanes have become detached this causes lack of flow in the cooling system.
Cooling fans stay on all the time on my 95 xj6 jaguar?
fan stays on when car turn of
What causes a car to overheat while driving and only leak antifreeze while stopped?
your cooling fans are not kicking in. They make have clutches that have gone bad. they need to be replaced. Also check the themostat
Car starts fine in the morning but after driving for a while it stalls out?
car starts but shut off while driving
What does it mean when your car shuts off while driving and when you try to start it up it stays on for a second then shuts off again The car wont stay on until you hold the keys in the ignition.?
the ignition switch could be bad
How do I turn off the head light that stays on all the time while driving?
There are different types of light. Some you have to turn on, some they are automatic light (they turn on right when you start the car)
Whose rates increase when a third party has an accident while driving the others car?
Insurance stays with the vehicle, the policy that insures the 'at fault' vehicle will have the rate increase should there be one.
If you have an accident driving your friends car who insurance covers?
typcially , ''insurance stays with the car'' meaning the insurance on the vehicle would be primary..........
What cauese a car to stop while driving?
The brakes are the primary cause of stopping a car whilst driving.
Why would a car only blow cold air when driving?
Only blows cold air with the a/c on while driving, your cooling fan or fan clutch is bad depending on the year, make and model.......... Only blows cold air with the heater on while driving, you will have a bad or broken internal a/c - heater control door.....
My car lost power while driving and now it will not start why?
Your car lost power while you were driving and it will not start now because the battery is depleted.
