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Re: can cooling fan run if relay in distirbution power...
Most likely the relay internal contacts are burned closed, but this is usually caused by a cooling fan motor that is drawing excessive current from normal wear and age, so change both the relay and the fan motor.
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radiator fan won't shut off when car is off
JoAnn, look in your manual for the cooling fan relay and change it, this is the problem in a lot of circumstances when cooling fan will not shut off(faulty relay). Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info." Thread Radiator Fan Won Stop Symptoms of Bad or Failing Cooling Fan Relay
It can be faulty fan relay.The relay is not turning the system off.Or its wire short issue.Even with ignition off ,the fan relay is getting power so its not letting the fan to turn off.Bypass the fan control relay and see if still the fan works with ignition off or not.
For more troubleshooting check the link below:------
That is very vague. Have you checked the radiator, and when it is hot does the electric cooling fan come on? Try running the A/C and see if the cooling fan comes on. Does it run hot on the highway or just in city traffic? I need some more details to try and narrow it down. There are many things it could be. Low coolant, stuck thermostat, air in the cooling system, bad fan motor, fan motor relay (also known as fan switch), or temp sensor.
Many cars have this feature. The fan will run for a few minutes at a time until the coolant in the radiator drops below a certain temperature. Most vehicles with this feature will have a warning label on the radiator shroud indicating that the fan may start without warning when the engine or radiator is still hot. The only time you would need to be concerned would be if the fan continues to run without turning itself off, and causing the battery to be drained.
have you replaced yor thermostat? have you checked your radiator cooling fans to see if they are coming on while your car is heating up? when your temp. guage is halfway up your fan should come on. you can check fuses and relays in fuse box[black box under hood drivers side] check those to see if fuses are blown or if fan relays are coming on[ticking while engine heating up]radiator could need flushing out also, just narrow your search some by elimination. if you open radiator cap before you start engine,then start motor, let it warm up.look for circulation,,flow of fluid,bubbling, then thats a sign it's circulating,thermostat is good. no flow means that thermostat not opening,thats bad thermostat.replace the thermostat.if not that are fans coming on? when engine at mid range on temp. guage does fan come on? if not check fuses @ fan relay. if fan comes on ,it's good.check water pump pulley for wobbly pulley while motor not running, shake pulley back @ forth for play. any play in pulley means bad water pump. are the belts on? i went through everything i would look for myself. hope this finds your problem!!!!
The car has a computer that is linked to the engine. It is hard wired to it meaning the computer is always on. Upon shutting your engine off taking the keys in hand the computer is still on sensing the engines temperture. The coolant sensor will send power to the relay to keep the fans running untill cooled down enough. Then the sensor will cut off power to the relay shutting off the fans
It is the cooling fan relay,it will be in the fuse/relay box under the hood,on drivers side,or near the fans,if you remove the correct relay,the cooling fans will turn off.Just replace it with a new one from the parts store.
it is mounted under the radiator towards the drivers side,it is flat and held to the frame with 2 small bolts and has a flat wire connector,it doesnt look like a normal relay,its black with a silver plate on the front of it,hope this helps