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Radiator fan only works if i unplug the plug where the radiator and ac fan go

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Old Sep 14, 2022
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Radiator fan only works if i unplug the plug where the radiator and ac fan go

So basically every time I turn off my car I have to unplug the plug where both the ac and radiator fan plug into (on the left side of the engine bay) and then plug it back in otherwise the fans won’t turn on the next time the car gets up to temp. I replaced the fan switch and fan itself, but the problem still Happens. The fuse and the relays work perfectly fine, idk what else it can be at this point

Last edited by greydog; Sep 15, 2022 at 08:27 AM.
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Old Sep 14, 2022
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Re: Radiator fan only works if i unplug the plug where the radiator and ac fan go

Pic of what connector you're talking about?
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Old Sep 14, 2022
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Re: Radiator fan only works if i unplug the plug where the radiator and ac fan go

Originally Posted by BrotatoChip
Pic of what connector you're talking about?


I dont have the car on me right now but this is what it looks like
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Old Sep 14, 2022
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Re: Radiator fan only works if i unplug the plug where the radiator and ac fan go

I give up. Why not just leave it unplugged?
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Old Sep 14, 2022
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Re: Radiator fan only works if i unplug the plug where the radiator and ac fan go

Originally Posted by Bugman1400
I give up. Why not just leave it unplugged?

if I leave the plug unplugged then the fans wont work at all. It cause my car to overheat because the radiator fan didnt come on
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Old Sep 15, 2022
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Re: Radiator fan only works if i unplug the plug where the radiator and ac fan go

Originally Posted by greydog
the fan won’t turn on.
Originally Posted by greydog
if I leave the plug unplugged then the fans wont work at all.
Assuming you meant to say the fans won't turn off in your original post? Will the fans shut off after running for a few minutes once the engine is shut off?
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Old Sep 15, 2022
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Re: Radiator fan only works if i unplug the plug where the radiator and ac fan go

Originally Posted by BrotatoChip
Assuming you meant to say the fans won't turn off in your original post? Will the fans shut off after running for a few minutes once the engine is shut off?
I fixed the post, I forgot to add some details
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Old Sep 15, 2022
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Re: Radiator fan only works if i unplug the plug where the radiator and ac fan go

What brand is the fan switch?
Do you know how to check continuity?
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Old Sep 15, 2022
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Re: Radiator fan only works if i unplug the plug where the radiator and ac fan go

Originally Posted by Colin42
What brand is the fan switch?
Do you know how to check continuity?

how have no idea what brand it is, I went to o’relies and they just handed me a white box with a switch in it
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Old Sep 15, 2022
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Re: Radiator fan only works if i unplug the plug where the radiator and ac fan go

Originally Posted by Colin42
What brand is the fan switch?
Do you know how to check continuity?
i do not know how to check the continuity
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Old Sep 15, 2022
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Re: Radiator fan only works if i unplug the plug where the radiator and ac fan go

Originally Posted by greydog
how have no idea what brand it is, I went to o’relies and they just handed me a white box with a switch in it
Fail needs to be oe.

Originally Posted by greydog
i do not know how to check the continuity
Have a multimeter? If yes, continuity test on youtube. Otherwise, buy one then youtube.
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Old Sep 15, 2022
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Re: Radiator fan only works if i unplug the plug where the radiator and ac fan go

FYI, if you continue to drive a Gen 6 (like I do), you’d better get good at troubleshooting electrical problems. Buy yourself a good electrical probe that connects straight to the car battery and can detect positive or negative DC and source either.

You will amaze your friends.
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