Question about 2002 Pontiac Sunfire

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Fan runs after car shut off

After shutting my 2002 pontiac sunfire off, it sounds like it is still running. I imagine this is the fan. How do I know, and more importantly what is the cause and what do I do? The fan has been running for 20+ mins.

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  • Anonymous Apr 20, 2009

    My car is overheating. I just had an oil change and the coolant is leaking when I turn the car off the fan continues to run. I've had my thermosat replaced previsouly however I've had problem with the thermostat getting really high during idle however never to the red zone. Now I'm in red zone while driving



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You may need to replace your thermostat. This is normal for the fan to run after you turn your car off but if you say its running for 20 minutes or longer, it may mean your thermostat is stuck and causing the fan to run longer to cool off the radiator. Its a good thing for the fan to run. Heat is your enemy. I rather the fan run than no fan at all, if your car overheats, you could blow a gasket or warp your valves and its really pricey if that happens

Posted on Dec 06, 2008

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I have a 2002 Pontiac Sunfire and when ever the thermostat gets above 195 or when the arrow is pointing towards the middle, when I shut off my car the fan kicks in to cool the car off so that it doesnt over heat. It's a good thing that our cars do that so that it wont over heat. Would you rather for your car to overheat and stall or over heat and then cool it's self off? I'll take door #2 palady1120 lol!!! I found this out when I was waiting to get into a club and the bouncer made an annoucement, "Somebodies car is running in the parking lol"!!! Don't worry, up to date Caddillacs do it tooo.

Posted on May 07, 2009


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1 Answer

I have a 2002 Pontiac Sunfire. My fan stopped producing air (hot and cold altogether) - from the lowest setting to highest setting does not work.

sounds like a the heater/ blower fan relay went bad. Unless you're mechanically-inclined you'll need a mechanic to install the replacement.

Do a Google search for the relay or blower motor and/or search for a Chevy Cavalier (same car) forum to find a fix - if you want to tackle it yourself.


Oct 30, 2013 | 2002 Pontiac Sunfire

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Cooling fan runs continuously, even after shutting the ignition off

sounds like it could be a relay.

With everything plugged in and the fans running with the key off remove the cooling fan 1 fuse. Do they stop?

If they do not stop remove the cooling fan 2 fuse. Do they stop?

I’m happy to assist further over the phone at

Aug 15, 2012 | 2002 Pontiac Montana

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I need to see a manual for a 2003 pontiac sunfire. I need to see how to disconnect the cooling fan so it will stop running after I cut the car off and then draining my battery.

You shouldn't just disconnect it. If it isn't shutting off properly, then the relay switch is probably burned out. That should be fixed. You need your cooling fan to work properly or the car will overheat and cause severe damage.

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Possible sticking or correoded fan relay.tap the relay and see if the fan shuts off.

Dec 02, 2010 | 2002 Pontiac Sunfire

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02 sunfire overheating

make sure you have radiator full of coolant
run the car to operating temperature
check the operation of the cooling fan
feel the upper radiator hose and the lower radiator hose. they both should be hot.
if one is cold then you may have a bad thermostat or restricted flow
if cooling fan does not come on when engine is hot then you have bad cooling fan switch, relay or motor.
good luck

Mar 07, 2010 | 2002 Pontiac Sunfire

1 Answer

Why would make the fan stay on in a 2002 sunfire after you shut the engine off

It has an electric fan and is set to stay on to cool the car once parked nothing to worry about should cut off.

Nov 25, 2009 | 2002 Pontiac Sunfire

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My 1998 pontiac sunfire is getting hot but not overheating

the fan may be bad but you can find the hot side of the plug and run a hot to the battery and see if the fan comes on. if it doesent you know you have a bad fan if it does you can run a wire to the fuse panel so that it comes on when the car does and shuts off when you shut the car off

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