Okay guys, so i literally just bought an 03 track 350z with about 38k miles (crazy right?) and i noticed whenever I'm decelerating and still in gear i hear a whining noise, it's very audible; all my friends pointed it out and even i noticed it during the test drive but figured it was normal considering it happened everytime you slow down and come to a stop. I'm not sure if it's just engine noise or if it's from the exhaust or what. The only reason i bring it up is because i owned a 6 speed g35 and i did not remember having this same noise upon decelerating in that vehicle. Some important information i should add is the car is bone stock, no modifications have been done to the car whatsoever.. Thanks and any information is appreciated!

 

Can you post a detailed clear video? Sound problems are very hard to explain and understand over text.

Video would help a ton to see where the sound is coming from and what exactly it sounds like. A ting, bang, whine or pop could sound like 50 different things to 50 different people unless actually heard.

 

^ Amen.... Did you check the level of your differential oil, OP?

 

Is your new Z an auto or a manual?

 

It's normal once you change out the diff bushings its even more noticeable. Happens in my car also.

 

Speaking of bushings, I have to do mine. Getting a little squeak in the front when I go over speed bumps.. Gotta do my diff bushings too. Gotta get that extra 5hp.

 

WHAT'S normal?? Mike, you know the sound he's talkin' about even without the actual sound played back? Dayam, yer good dude.

I've got this sound in my car, it goes Zzzzzzzzzzzzzzgrrrrhnnnnnnnnnngwhooooooosh... help me out here Mike, what it be, man?

 

Thats the sound all the ladies make when they are trying to check you out but your going past them too quickly.

 

i might have the same noise. It sounds like something is spinning down. my guess is that it has something to do with the fly wheel.

 

I'll check my differential fluids and change it out, thanks for that recommendation

 

also it is a manual transmission

 

Sounds pretty normal to me.

Possible PS pump goin out if anything.