I'd guess it's somewhere under/near the glove box.

I think you need to understand how things work, when enough pressure is applied things gets done. Do you think all these rich and political people get things done because its the right thing to do? No they have thier people apply pressure to get things done. If you dont pressure people or companies into fixing things that are not right then they wont get fixed. You think Toyota would ever have fixed things if no one did or said anything? Press and lawyers can do wonders. I + repped the dude for getting the lawyer and getting his resolution, he was pro active and accomplished something. If others did the same then Nissan might be more ective in fixing the problem. I have yet to hear the noise but Im a little hard of hearing in certain freqs. The real world is a b!tch and you have to know how to play its game, right or wrong.

there is an epidemic of necroing in here

damn necro mongrels

Damn, are most of the 370Z's experiencing this problem?
I was really set on getting one

I'm sure that the overwhelming majority of '09/10 Z's have NOT experienced the problem and many of the ones who have have gotten it taken care of, under warranty, with an ECU change. It sounds more frequent than it actually is because so many of those who are troubled by it find the Forum to report it there and seek information there regarding the fix. My car does not have the problem.

Seriously man?!?! I would say his hardship is valid. The trouble of bringing in the NEW car to the dealer nonstop over the past few months is a royal pain to begin with. Then battling with Nissan regarding fixing the problem and taking ownership of the issue, to the point of having to hire a lawyer.

Geez cut the guy some slack. It's clear Nissan has a QC issue with the Z. The car isn't supposed to make a pitchy noise when you drive.

I agree he should be compensated for his time and effort.

Mine has replaced ecu and highpitch noise is gone.

I think I'm the only one, has been fixed this noise

I keep telling my dealership it's the ECU, but they are insisting on trying everything else. Lol.

Good deal! From what I've been reading on the G37 board, only the '09s are effected. '10s do not have this problem.

Okay, I got my car back from the dealership, They figured out it was the ECU, confirmed it and is ordering a new ECU for me. I should have it in 2-3 weeks.

WISH ME LUCk!

you have to make sure they ordered correct part. The ECU serial number should be ending with A.

ARE YOU SERIOUS??

There are so many things wrong with your post i don't know where to start...

that made me laugh..haha

Thanks dude, They just told me the serial is different from my stock one he didnt' let me know what it was though.

I have this issue on my car..but to be honest right now I don't really care to bring it to my dealership to get fixed. TBH I don't trust them at all to do anything with my car. Maybe a TSB will come out to fix this? It doesn't bother me too much..Probably try to get it fixed down the road.

im at the dealership to get my window fixed on the driver's side, the window automatically rolls up when the door is closed but does not seal off to the rubber all the way, therefore creating a loud high pitched wind noise while driving at high speeds, blahhh

anyway, i also mentioned about this high frequency noise (Which i have as well 2010 model) to the service rep. and he got inside the car with me and after listening to it for awhile said he cannot hear anything and looked at me like i was crazy....

Anyway, looks like the g37s were able to find a fix.. why not the 370z??? or is there a fix for this yet? did anyone ever contact consumer affairs yet?

i just want to get everything fixed, its irritating to have so much issues with a brand new car.

So... Service Rep. finally said that his tech hears the high pitched noise as well and is calling nissan hotline for instructions.

He said they are looking at "other alternatives" to quiet the noise and see what the noise level is because the ECU replacement will cost nissan 1300.00??? is that true? why not just replace the god damn thing because its a manufactuer's defect? Are they allowed the reject what i want with my own car as a customer, just so they can save 1300??

Ive been waiting 7:30am in the morning and im still at the dealership and its 2:25pm. FML

If they acknowledge the fault then dont let them do a bandaid, have them fix it by replacing it. I dont think warranty work costs the dealership anything does it?

well i just got back from the dealership and the rep said that nissan hotline told them the 2010 models were all already fixed on production line after the incident with the 2009 models with the high pitched noise. so that slight high pitched noise should be gone right? Well to the rep, its No. he said the high pitched noise will still be there except itll be less loud. does this make any sense?

I clearly hear it, and the tech's clearly heard it. that is why they called the hot line in the first place. so obviously there is a fix for the 2009 that will eliminate this noise, but since they "already" replaced the ecu on the 2010 models, that means i have to live with it? they replaced an upgraded ecu that doesn't work? what the hell..

I just ate a whole plate of pizza rolls.

Apparently you are wrong :tiphat:

http://upitall.com/Private/u/3/292/5004

The surrender happens Friday

I was planning on getting a Z, but after test driving a car with the problem and knowing that Nissan wouldn't acknowledge the issue, I decided to keep my money. The sound was so bad it hurt my ears, even for a period of an hour or more after I got out of the car. I have better things to spend my money on than a gamble on a car that the manufacturer won't back up. It still looks like Nissan and it's dealerships are giving people the run around in some cases. It's really unfortunate because the car is just awesome otherwise.

I've posted this before, but for those who want to know what it sounds like, here it is.

freesound :: view sample :: TONE 10 kHz 44.1 16bit.wav

Look for and click on the little black triangle and turn up the volume. Hurts, huh?

Finally someone who understands just how bad it was. Nissan chose to ignore me and they paid the price. Not only did they have to refund me every dime I paid for the car but an additional $9k. I should really thank Nissan, they let me drive a car free for a year and bought me a very nice watch.

You are the man!!!

Congratulations :tup:

Had to quote this again for the lulz, Jtown82 please don't have kids

Please vote on the poll thread just created...thanks.

bumpola...

My cars in to have the ECU changed wish me luck! Will update when i get it back.

Why doesn't my 2009 (built Nov 2008) have this noise? I feel so left out.

Cause the Z looks down on serial killers. esp impatient ones lol.

Got my car back. No more noise! woot. Fingers crossed it doesn't pop up.

Help, need to get this noise fixed!!
 

Hello, I got my Z about 7-8 months ago, model 2009 (it was a dealership showroom model, had 12 miles when new). So it's purchased with a slight discount, but comes with full warranty.

A week ago, I started to hear a high pitched whine, exactly the kind of noise sub-par capacitors often do. It's now gotten so loud that I can't drive the car anymore. I have very sensitive ears and this noise gives me a real headache, plus I hear its echo half an hour after I get out of the car. It's a BIG problem. I'm going to have to borrow a temporary car until this is fixed.

It started just recently, I have 2300 miles on it. The car finally settled, is a lot more fuel efficient than it was new, the gearbox is precise yet smoother... In short, I was beginning to be really satisfied with it. Now this fresh hell turns up!

Once the car gets warm (15mins after being cold) it starts and doesn't let off. It's present only while the engine is running. Accu on / engine off - no noise. RPMs have no effect on it. I start the engine, the noise welcomes me and drives a spike into my BRAIN.

I'm in the Czech Republic and we have a really long history of bad & unhelpful dealerships. They basically label everything OK, "nothing to fix here", move on. I'm really afraid I'll be stuck with it and will have to sell the car.

Does anybody have any solid facts, hints, technical pearls about this? How should I approach them? How can I prove this issue? I'm sure the dealer will try to deny hearing anything. Does NISSAN have some kind of a list with known issues? Does NISSAN acknowledge this at all?

THANKS!!

Im just going to add that i also have this issue in my 09 370. I mentioned it to a tech when i took it in to get some tires put on and he said he couldnt hear it, i let it drop. I mentioned it again when i took it in because of gears grinding with the clutch fully engaged when going from 6th to 5th. This time I had an app on my phone (droid) called Spectral Pro which is a spectrum analyzer and i was able to show the tech that it did exist...and even show that it was loudest under the glove box and was approximately at 11000Hz, once again they claimed they heard nothing. He insisted that "cars make noise" and basically blew me off. It gives me headaches sometimes on trips, and causes me a good amount of irritation other times. I guess I'm just going to have to be more bullheaded next time.

Some asshat just recently scratched the paint off my fender, so I took it in together. I told them about the noise. Luckily, the test driver heard the noise, but didn't look much enthusiastic about fixing it. They gave me the same shait they did to you. Basically, "it's not that big of a problem", etc.

I was prepared, just like you, and I bought the same spectral pro app for my android! :) Seems like we think alike. :) I showed it to him and that the most dB's are near the glovebox. OK, he wrote it down and said he'd let me know. There were two huge spikes as 13kHz and 15kHz. Like very high, 5x higher than ambient engine noise, and that's on a logarithmic scale!

A week later, when the paintjob was finished, he called me and said everything is fine, but none of their techs could hear the noise, not even with some audio equipment. When they asked, Nissan denied there are any issues of this kind and refused warranty ECU exchange. So I said that it's a dealbreaker for me, because I cannot drive the car with this noise, which I really can't, because it drives me crazy and after about 2hrs of driving, my head really hurts. I guess those of us who have better hearing are **** out of luck. Nevertheless, the dealership guy seemed sympathetic to my problem and said he'll try to do some more and ask other people to try to analyze it. But who knows, he may be lying.

Now I'm waiting and hoping they'll fix it. If not, I'm gonna report it two more times and after that, I believe I can request a refund under warranty. It's some kind of a law here that when you report a problem under warranty 3 times and they don't fix it, you're entitled to get your money back. But they have to acknowledge it first! I also have a lawyer who says I may have some ear damage from prolonged exposure to these freq's, so if everything fails, I'm gonna get my ears checked out and if there's the slightest drop in sensitivity in that range, I'll have more ammo. :)

I wish you luck with your car too! Let's hope we'll both get what we want.

Thanks man, same to yah. Funny that you got that app too, its pretty cool tho. If you get any resolution on this issue let us know.

:tiphat:

Got the resolution today, actually. They said they've been searching for it a long time and now think it's the fuel pump. They compared my car and noises to a new Z and agreed that this noise shouldn't be there, so they've ordered a new fuel pump under warranty.

I'm praying that's what it was and that I'll be able to enjoy driving the car again!

Did anyone else here had the whine traced down to the fuel pump?

some capacitors make a high pitched whine when they are energizing. a capacitor would also explain why the whine persisted after the car had been turned off. would also explain why the ability to hear it in a certain range of reving the engine as the alternator was spinning up and increasing output. just a theory. mabey somebody can take it somewhere...

i really dont know anything about the car, but i have a little electrical knowledge.

First they said it was my speakers, so they disconnected them. Then they said it was my fuel pump, so they replaced it. Finally they listened to me and changed my ECU. All was well.

That's what I'm afraid of, that they'll change the pump, but the noise will remain. Hopefully, they're really trying to find the issue and really pinned it down, not just to shut me up. :( I have no idea how much more the ECU costs compared to the fuel pump.

Anyway, if it's still present after the exchange, I can go from there. Replacing the pump means they acknowledge the problem, so if it doesn't help, they'll have to look elsewhere.

Dammit, I should've waited for 6 more months and buy the 2010 model...