strange groaning 4 minutes after shut down.

[Heliwolf]

Hello everyone. proud owner of my first Subi. 2021 forester. i am hearing a strange groaning about 4 minutes after shut down from what sounds like front of car. is this an air pump depressurizing or some other smog related piece of equipment. anything to be concerned about. TIA

 

[JimTheMechanic]

Hello everyone. proud owner of my first Subi. 2021 forester. i am hearing a strange groaning about 4 minutes after shut down from what sounds like front of car. is this an air pump depressurizing or some other smog related piece of equipment. anything to be concerned about. TIA

2021...
First Subie...
U skipped alot
i know earlier models are loud at start ups fir mins or 2

air injections