long High pitch sound when shutting off engine

[Kong76]

Noticed this a few times but today was extra long. Seems to be when I am running the AC or fan. When shutting off engine theres a high pitch squealing sound that today lasted for about 10 seconds. Seems like something coming to a stop. I suspect radiator fan. Strange on my short trip the AC was ice cold but on my way home it wasn't as cold. I know there's a sticky for this so I will call for an appt. Hope they can reproduce.

This kinda stuff is why I haven't modded the car. No faith.

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[N123456]

Noticed this a few times but today was extra long. Seems to be when I am running the AC or fan. When shutting off engine theres a high pitch squealing sound that today lasted for about 10 seconds. Seems like something coming to a stop. I suspect radiator fan. Strange on my short trip the AC was ice cold but on my way home it wasn't as cold. I know there's a sticky for this so I will call for an appt. Hope they can reproduce.

This kinda stuff is why I haven't modded the car. No faith.

Mine has done it since day one. Not really sure what it is though, so sorry I can't offer any help. I just took it as normal as my friends 2016 GT PP does the exact same thing. :shrug:

 

[Kong76]

I was reading some other sites that they mentioned leak in the ac and it makes the noise because the pressure is equalizing upon shutting off the engine. Idk.

 

[jasonstang]

Can you pin point where is it coming from?

 

[Kong76]

I'll get it over to my brothers and have another set of ears and eyes to take a look. Hard to shut it off and run around front in time. Although that 10 second one would work. Just froze listening to it..haha

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