Weird noise after starting the car after a stop

[Resions]

Hello,
First, I would like to apologize for my English. Its not my official language

I have a little problem with my subaru brz 2015 with automatic transmission.
After long stop e.g. all night or 8hours or more. I start the car and wait until the revs drop from 1500 to 1000 / 900. When i run a car i hear weird sound like wheezez, a little metalic i think. Sound is heard only once at around 1500rpm.
my first suspicion fell on the automatic gearbox, but i get a car to AT specialist and he told to my, with gearbox everythink is okey, only what he do is dynamical oil change in transmission.
the strange thing is that you only hear it once a day (after coldstart) and then i don't have any problems with that sound.
Motor is n/a , exchaust with non tuning, motor oil is 0w30 millers cfs nt+

Maybe some have similar symptoms like my, and wanna help with this.
Becouse this car is my eye in my head and i would like to my car work perfectly

[humfrz]

Originally Posted by Resions

Hello,
First, I would like to apologize for my English. Its not my official language

I have a little problem with my subaru brz 2015 with automatic transmission.
After long stop e.g. all night or 8hours or more. I start the car and wait until the revs drop from 1500 to 1000 / 900. When i run a car i hear weird sound like wheezez, a little metalic i think. Sound is heard only once at around 1500rpm.
my first suspicion fell on the automatic gearbox, but i get a car to AT specialist and he told to my, with gearbox everythink is okey, only what he do is dynamical oil change in transmission.
the strange thing is that you only hear it once a day (after coldstart) and then i don't have any problems with that sound.
Motor is n/a , exchaust with non tuning, motor oil is 0w30 millers cfs nt+

Maybe some have similar symptoms like my, and wanna help with this.
Becouse this car is my eye in my head and i would like to my car work perfectly

Welcome to our forum, there Resions.

Not to worry about your English - it appears to be better than a lot of folks on this forum -

I don't know what is causing that little sound, but, if it doesn't get more frequent or any louder, I wouldn't worry about it. It may just be the transmission limbering up.

[Resions]

I understand, the only thing that worries me is that I didn't have it before. in P mode, when I add rpm, it cannot be heard. only in D and R when I start driving and only one times in a day
What do u mean transmission limbering?

[Ultramaroon]

Originally Posted by Resions

I understand, the only thing that worries me is that I didn't have it before. in P mode, when I add rpm, it cannot be heard. only in D and R when I start driving and only one times in a day
What do u mean transmission limbering?

Welcome, Resions. He means that the transmission is warming up. I am not ready to agree exactly, but this car makes many noises, especially when cold. If you are able to record the sound and send it to youtube, or someplace like that, we can listen. I agree that unless it gets louder or happens more often, it is probably not serious.

[Resions]

Okey, i try to record this sound and put on youtube.
Reallly thanks to all for help me