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Radiator fan stays on after engine cool. - 2004 Buick Rendezvous

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Check your relay. Ubder hood, may be a place to start. good luck.

Posted on Mar 27, 2011

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2000 triumph tt600 radiator cooling fan doesn't come on I've tested the fan and it works , all the wires to the fan look ok anyone any ideas


Yes, the thermostat. I don't know exactly where yours is - but the thermostat is usually on the engine near a radiator hose. When cool, it stays closed to heat the coolant in the engine block and keeping hot coolant in the radiator to be cooled. Once the engine has heated the coolant to 185 ~ 200 degrees, the thermostat opens and allows the hot coolant from the engine to enter the radiator - which forces the colder coolant out and into the engine block - to keep it from over heating.

Your thermostat may be stuck - keeping it from opening / opening fully. You can test it be removing it and dropping it into a pot of boiling water on your stove - it should open in water that hot.

Do not work on the thermostat, radiator or coolant while the engine is hot. Opening the cooling system may result in spilling coolant and making a mess if you are unprepared for it.

Jun 12, 2014 | Cars & Trucks

2 Answers

Why does my fan keep running in my 2003 Volvo S 60 after the car is off?


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:------

Cooling Fan Stays ON with Ignition Off?

http://whatisbyme.blogspot.in/2012/07/cooling-fan-stays-on-with-ignition-off.html
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Cooling fan relays location ?

http://technoanswers.blogspot.in/2012/02/cooling-fan-relays-location-on-1998.html
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DIC says "COOLING FAN FAULT"?

http://schematicsdiagram.blogspot.com/2011/12/dic-says-cooling-fan-fault.html
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Heater fan and headlights will not turn off with ignition off?


http://technoanswers.blogspot.com/2012/01/heater-fan-and-headlights-will-not-turn.html


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Fuel pump relay and cooling fan relay troubleshooting ?

http://repairhelpcenter.blogspot.com/2011/10/fuel-pump-relay-and-cooling-fan-relay.html

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Where Is Radiator Fan relay and Fuse Located?

http://schematicsdiagram.blogspot.com/2011/12/where-is-radiator-fan-relay-and-fuse.html

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These will help.
Thanks.

Nov 28, 2012 | Volvo S60 Cars & Trucks

1 Answer

My radiator fan is not working


For radiator replacement procedure and radiator problem troubleshooting. I suggest you to click the link below and follow the detailed procedure :-----

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How to Replace Engine cooling Fan on car? http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-engine-cooling-fan-on.html

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Engine makes noise and Cooling Fan belt Breaks? http://howtobyme.blogspot.com/2011/12/engine-makes-noise-and-cooling-fan-belt.html

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Replace Fan Relay but still Radiator cooling fans not working? http://schematicsdiagram.blogspot.com/2011/12/replace-fan-relay-but-still-radiator.html

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Cooling fan relays location? http://technoanswers.blogspot.in/2012/02/cooling-fan-relays-location-on-1998.html----------DIC says "COOLING FAN FAULT"? http://schematicsdiagram.blogspot.com/2011/12/dic-says-cooling-fan-fault.html
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How to replace radiator Cooling Fan?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-cooling-fan-on-acura-car.html

---------------
Engine cooling components working?

http://repairhelpcenter.blogspot.com/2011/11/engine-cooling-components-working.html

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How does Vehicles Engine cooling system works? http://repairhelpcenter.blogspot.com/2011/11/how-does-vehicles-engine-cooling-system.html

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cooling fan not working http://schematicsdiagram.blogspot.in/2012/02/hyundai-sonata-cooling-fan-not-working.html----------- Fuel pump relay and cooling fan relay troubleshooting? http://repairhelpcenter.blogspot.com/2011/10/fuel-pump-relay-and-cooling-fan-relay.html

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Why Transmission fluid leaks near radiator?

http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html

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Transmission fluid leaking?

http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html


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How to replace Radiator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-radiator-on-audi-and-vw.html

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HOW TO REPLACE AN UPPER RADIATOR HOSE

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-upper-radiator-hose.html

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HOW TO REPLACE A LOWER RADIATOR HOSE

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-lower-radiator-hose.html

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How to replace Radiator on Car models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-radiator-on-acura-car.html

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How to flush cars radiator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-flush-cars-radiator.html

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HOW TO PRESSURE TEST A RADIATOR AND CAP

http://schematicsdiagram.blogspot.com/2011/07/how-to-pressure-test-radiator-and-cap.html

----------------
HOW TO REPLACE A RADIATOR

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-radiator.html
------------------

HOW TO REPLACE A RADIATOR SUPPORT

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-radiator-support.html

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This details will help.

Thanks.

Feb 01, 2012 | 1997 Mercury Cougar XR7

1 Answer

My raditor fan stays on in my 1997 town and country


cooling fans stay on, engine could be overheating, faulty cooling fan relay or pcm could be faulty.best get vechicle code scan before spending too much money you need scan to see what engine coolant temperature is,scanner can tell you if engine getting too hot could have partially closed thermostat,clogged radiator cores clogged engine block coolant passages clogged also the heater core, if engine not overheating the code scanner will tell you if you have faulty cooling fans relay or pcm failure.

Dec 15, 2011 | 1997 Chrysler Town & Country

1 Answer

Cooling fan stays on while engine is on and its not the relay, what could it be?


IF COOLING FAN STAYS ON WHILE CAR IDLING AND DONT TURN OFF YOUR ENGINE IS RUNNING A LITTLE HOT.YOU COULD PARTIALLY CLOGGED RADIATOR OR ENGINE BLOCK PARTIALLY STOPPED UP ALSO THE THERMOSTAT NOT OPEN ALL THE WAY.HAVE VECHICLE SCANNED TO SEE WHAT COOLANT TEMPERATURE IS IF HOT.HAVE RADIATOR SHOP PRESSURE TEST COOLANT SYSTEM AND FLUSH OUT RADIATOR AND ENGINE BLOCK CHANGE THERMOSTAT.

May 22, 2010 | 2001 Dodge Grand Caravan

1 Answer

1996 Honda Odyssey engine cooling fan stays on.


I don't thing there is a short there is radiator fan switch that control these fan, it works off of heat. There is also a fan relay that control look in fuse box inside the hood for fan relay and make sure its NOT stuck , if it isn't then its the fan switch.This switch may be bad and cause the fan to turn on. Replace radiator fan switch located on water outlet on engine and this should solve your problem. A

May 15, 2009 | 1996 Honda Odyssey

1 Answer

Cooling fans stay on


your fan will also come on when the defroster is on and when the airconditioning is on so it could be something to do with the inside temp controls

Jan 25, 2009 | 2003 Nissan Maxima

1 Answer

Fan cooling system of an engine v.w


A thermal switch controls the radiator fan and if the temperature of your radiator is above a preset temperature value, the thermal switch will close and the fan will turn on and will stay on even after you turn the motor off, until your radiator temperature cools down. I wouldn't worry about.

Jun 11, 2008 | 1996 Volkswagen Jetta

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