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2002 mitsubishi galant are fans supposed to run when starting car?

My friend said my radiator fan wasn't running when he started my car, and I needed the relay... But I don't recall my fans automatically starting when car starts. Thought it had to do with the temperature!?

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Some cars have other fans for different purposes and it isn't unusual to hear a fan run for a short time after switching on but it is most unlikely the radiator cooling fan. Sometimes, I have noticed the aircon condenser fan (if fitted) running when the ignition is first switched on.

The radiator cooling fan is controlled by temperature.

Posted on Jan 04, 2018

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The fans should run whenever the AC is on. But if it's off, the fan should only run when the computer thinks the temp is too high

Posted on Jan 04, 2018

Testimonial: "Thank you for confirming what I always thought. He totally confused me--especially since I don't have overheating problems."

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Posted on Jan 02, 2017

drallim

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SOURCE: Cooling Fan not coming on 2002 Mitsubishi Galant

Check the fan itself for free turning--if it grinds or is hard to turn, replace the fan motor. The engine heat sensor reports temperature to the computer which turns on the relay and it turns on the fan motor. If you have A/C, turn it on--that should force the fan on all the time the car is running. If that works, then replace the sensor. If you don't have A/C, take a chance on the sensor--it's not too expensive. Wrap the threads with several turns of teflon tape when installing and don't over-tighten.

Posted on Sep 03, 2009

Anonymous

  • 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

Anonymous

  • 53 Answers

SOURCE: running hot

replace the therostat ( most likely )

and the radiator cap

Posted on Nov 30, 2008

emissionwiz

Marvin

  • 85223 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

John P Schwantes Jr

  • 1509 Answers

SOURCE: Both radiator cooling fans won't turn on vehicle overheats

The fans come on only when hot or the AC is on. There are many fuses that have to be good for it to work. The fan relay should have 2 pins hot with the key on, The other 2 should be ground. with the key off one should be hot and the other can then be ground the other pins that are ground one of them is the fan. the other becomes ground when the computer turns the fans on. If you don't have a pin thats hot at the relay all the time then theres a blown fuse or even the power wire from the battery at the battery

Posted on Nov 02, 2009

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