Question about 2004 Honda Civic

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Does the radiator fan keep running even after switching off the engine

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  • locass04 Aug 27, 2008

    my sienna fan stays on then it kills my battery it won't turn off until i start the car

  • locass04 Aug 27, 2008

    how do i fix the fan problem please help don't know what to do it keeps on draining my battery

  • Anonymous Oct 08, 2008

    The radiator fan continues to run long after the motor has cooled down...running down the battery. Could this be the cooling fan motor relay?

  • jpw5 Dec 01, 2008

    The fan keeps running and never cuts off.

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The temperature actuated switch is stuck in the ON position if the cooling fan(s) continue to operate after the engine has cooled down. Locate the defective sensor switch and replace it to eliminate the problem. This could be continuous or intermittent and either way if the switch is faulty it should be replaced.

Posted on Mar 15, 2009

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Where do I find the temperature actuated switch honda civic 2004

Posted on Jul 25, 2009

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Yes most cars have this feature so you dont essentially bake your motor it runs the fan(s) until the temp is down to a reasonable level

Posted on Jul 21, 2008

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  • 119 Answers

It is normal for the fan to occassionaly run for up to 5 minutes after the engine has been turned off. If it stays running much longer than that, then you have a problem with either the fan timer, or fan switch B.

Posted on Jul 21, 2008

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SOURCE: radiator fan keeps running with

on the 98 cherokee the fan isnt supposed to run after you turn the car off check the relay in the fuse box by the battery under the hood. Try replacing it with a different one in there. The relay may be stuck

Posted on Jul 29, 2008

  • 1 Answer

SOURCE: Radiator Fan continuously running with engine off, discharging battery

It is not the fault: for long time Renault has that concept, that is to prevent engine oveheating when coolant circulation is suddenly stopped.

Radiator fan can continue to work up to 10 minutes after engine is off. You should worry about it only if it wouldn't stop even after 10 minutes.

Posted on Oct 12, 2008

  • 366 Answers

SOURCE: Radiator fan stays on and engine runs hotter.

check thermostat,stays closed

Posted on Apr 01, 2009

emissionwiz
  • 64034 Answers

SOURCE: electric fan on radiator runs whenever engine is

this is either a sticking fan relay or the sensor is in the thermostat housing, try the relay 1st.

Posted on Sep 28, 2009

airjer995
  • 5332 Answers

SOURCE: 1999 Jeep Grand Cherokee 4.0L 6cyl: Radiator fan

there is a solid state fan relay located under the passenger side headlight assembly. There are two ways to get at it. Either you can tear apart the entire front of the vehicle or you can remove the passenger side headlamp assembly and carefully drill a hole about in the middle of the opening and down towards the ground. Look in the hole you drilled you should be able to see the relay. Continue drilling/cutting until you have a hole just large enough to get the old relay out and a new one in. The hole will be covered by the headlamp and has become the preferred method of replacing since they are so common and removing the entire front assembly is so time consuming.

http://img.photobucket.com/albums/v493/twister55/jeep/DSC02093.jpg

Posted on Sep 26, 2010

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Posted on Jan 02, 2017

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1 Answer

Why does fan motor keep running after engine is shut off


This is normal and there should even be a warning label near the fan shroud. It is cooling the radiator and as long as it eventually does go off there is nothing to worry about.

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Hi Kevin. Since your fan run even when the engine is cold,my advise is to go direct to the temperature sensor,which actually is the main culprit for causing the confusion to the ECU. Since the temperature sensor does not work correct,the message send to the ECU is wrong - like is sending that the engine is hot - the ECU order the fan to start. Also there is another possibility for the fan relay to remain stuck and leave the fan to work constantly.

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A thermal switch controls cooling fan operation independently. If the cooling fan keeps running long after shutdown, that switch may have become too independent and will have to be replaced

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92 toyota celica radiator fan switch


I guess the overall answer is no. You need to find a way to make the switch work.
If you leave the switch unplugged and the fan runs all the time, the engine may not warm up in the winter. And you are wearing out the fan motor to some degree.
You can't hook the switch up and not mount it in the radiator because then the fan won't come on and you will cook the engine.
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1 Answer

The Auxilliary FANS keep on turning ON even if the engine is stop or no ignition please HELP


The fans will run even if the vehicle is off. This is to keep the engine from overheating
after it is shut off. (residual heat). Now if the fans run continuously after the
vehicle is shut off and do not shut off in say, 15 minutes then the fan relay may
be stuck or the temperature sensor has failed. The fans may also come on after
a long drive several minutes after the vehicle has stopped as heat builds up
because there is no air flowing across the radiator. They may even be controlled
by the engine computer in some vehicles. You can have a code check
run at many parts stores for free.
Also, check the coolant
level with the vehicle off and totally cold at the radiator itself to be sure that
it's not low (Even if the reserve tank is full you can still be low creating hot pockets in
the block). Make sure the overflow tubes are connected to the reserve tank
I have seen them fall off and drain the radiator slowly without being noticed.
Hope this helps.

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Fan by the radiator stays on after the car is turned off


some models will allow the fan to continue to run after the key is turned off Check to see if there is a sticker somewhere near the radiator that says "fan may start at anytime even when engine is not running"of something like that.......if not it is probably the fan sensor switch.........they are usually either in the intake manifold or sometimes in the radiator.(also in the housing near the thermostat)

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Porsche 944 electric fan keeps running even when ignition is turned off


Replace the cooling fan relay, another person had the same issue, that's waht it was.

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