I believe I have heard this type of sound on other G35s and 350Zs, but I just wanted to see if it's normal.

http://www.youtube.com/watch?v=TdmgMdQYDtU

In this video, I am pushing the clutch in and letting it out several times. When the clutch is pressed in, the rattling is gone. When the car is idling with the clutch out, it is rattling. It also rattles the loudest just as then engine is being turned off. I can't hear it at all when listening to the engine bay with the hood open. It sounds like it might be coming from the header/cat/midpipe area.

It's a 2007 350Z that is completely stock and still under warranty. If it's a normal sound, I can live with it. If not, I'll have the dealership check it out when they are doing the recall slave cylinder work.


Thanks,
Brian

 

Although it's annoying, it seems to be normal. BTW, if you push the clutch in when you shut the engine off, it won't be as loud.

 

use the search before you post.... or put on the flame suit.

 

Ah okay cool, thanks for the suggestion. I figured it was normal. I'd rather get any/all warranty work out of the way while I'm still stock

 

It's cool, I had my flame suit on

I searched and saw several people suggest the noise was from a bad throw-out bearing when a guy said his was louder than usual. I figured it wouldn't hurt to post a video of my specific noise to make sure it wasn't anything abnormal.

 

my Z is going on 5 years of embarrassing sounds, nothing broke yet!

 

Sounds like its from a 100% normal 350Z throw out bearing.

 

I'm sorry but that is not the throw-out bearing. Throw-out bearings will make noise, usually just an initial squeek, when you press down the pedal. It's input shaft bearings.

 

since its still under new car warranty, go to the dealer, and they should know whats up...

 

My car does the same. Dealer told me the new slave cylinder will fix that problem. Hopefully it will (or they will be hearing more from me).

 

Well whatever it is, I've found it to be common from Z to Z, when the car is in neutral it rattles, once the clutch is pushed in it goes away, my car has done it for the last 5 years with zero problems other then the rattle.

Maybe its an older Z thing?

 

You have no clue what you are talking about. That IS indeed the throw-out bearing. It's actually a pretty mild case in that video. There are just 65 zillion threads here about it, and it's only been discussed in every auto forum in the universe, almost as frequently as 'what is the best sounding exhaust'.

 

I think its cool sounds like a DUCATI!

 

My car rattles like no other. Esp with aftermarket clutch and flywheel. Just what the car does. Nothing wrong just like to make noise at idle with the clutch disengaged.

 

That's wonderful that you've read 65 zillion threads on every auto forum, but I bet I've rebuilt more transmissions than you

I shouldn't have said it's input shaft bearings though, there are other internal trannsmission issues that could be the culprit, gear lash is one that comes to mind, which would better explain why many members who have had similiar noise not progress into worse problems, also explains why this is a common sound when eliminating the dual-mass flywheel. But one things for sure, that sound is NOT the TOB

 

ahh max.org member here too!

yea i picked up a 04 track and its making that same noise..95% of the time it rattles...after it was warmed up for like 10mins idling no noise when i turn the car off..

 

No sounds here.

2004.5 / 28k

 

i have a 08 and it started doing it at 500 miles. i just got a new transmission and it does it on that one too so i dont think its the tranny. ive asked nissan but they said its normal and cant fix it

the only thing i can think of is the clutch but i dont know enough to pin point it.

 

so its normal...?
i want some tacos!

 

guys. thats the tranny gear noise. Thats normal for your case. Every manual has it and some are very quiet and some are noticable.

When you push the clutch in, you cant hear because the tranny gears arent spining. lettin go, you are engaging the shafts therefore spinning the transmission gears.

Check your transmissions oil if anything.