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Fan keeps running after engine is turned off - Lancer Mitsubishi Cars & Trucks

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  • Karyn027 Oct 05, 2008

    It does eventually shut off, but it has never done this before - it is almost 3 years old and I've but 120,000 miles on....

  • Karyn027 Oct 05, 2008

    I took it to the shop today it is a module? A little box that is causing the fan to speed up and slow down and not work right, it is a dealership part, they have to call and get it from Mitsubishi on Monday. Thanks for all your help!

  • clewis728 Nov 14, 2008

    I have a 1995 Ford Mustang and the fan occasionally stays on after cut off, but when i turn the ignition (not completely on) back it turns off. This time, it stayed on, even after turning the ignition on and completely on. The temperature here is not hot at all, around 65 degrees. I don't want it to run my battery down. Help.

  • sheiknaji Nov 24, 2008

    fan keeps running when Put the key and on also running after start also even cooled engine. I change relay and thermostate sensor switch. Problem not solved. The relay geting hot is it normal

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Why does the cooling fan start working as soon as i start the car and doesn't shut off until i turn off the car?

Posted on Sep 07, 2013

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The Fan is functioning normally. When you shutdown the engine the temperature continues to rise and the fan will prevent coolant temps from spiking.

Posted on Feb 01, 2015

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Emtbjb is correct. Engine temps actually rise when the engine is shut off, the fan running is completely normal.

Posted on Oct 05, 2008

  • mcalkins3
    mcalkins3 Oct 07, 2008

    A faulty CTS could also cause this issue. A variance in resistance within the sending unit could cause error. "easing off the gas" will have little effect unless your beating the snot out of the thing. I would look into what the current operating tempature is during driving. Also a recent thermostat change could cause an over reacting fan. Unless the ambient air tempature is rather high where you live the fan shouldn't run every time you drive the car upon shut off.

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Does the fan eventually shut off? If it does, this is a normal operation for cars with electric fans. There is a temperature controlled switch that keeps the fan going to help cool the engine after the car has been running.

Posted on Oct 05, 2008

  • Jason Baker Oct 05, 2008

    The fan doesn't always come on. It depends on how hard you drove the car just prior to shutting it off. The harder you drive the more heat is generated. Recommend that you ease off the gas a couple of min before your destination. this will allow the cooling system to circulate while you are generating less heat. Faster cool off and longer car life.

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