Update on the high pitch noise
 

After Nissan having my car for over 2 weeks I was called today by Nissan and was told the following:

'Nissan is well aware of this noise and there is no fix to date'

Basically they are saying ohh well deal with it. In the mean time I have a car that I cannot drive since the noise is so high pitched it gives anyone in the car a splitting headache. Even after having a Nissan tech drive the car and say the sound is unbearable they will do anything or give me a rental car.

Work order:
http://www.upitall.com/Private/u/3/292/3911

I hear it in my car, but I fix it by driving fast enough the road noise covers it up, or, pop in a CD and rawk out.

I've got 4 CD's loaded with wma/mp3 files (all legal) - probably a good 8-10 hours worth...lol

I'd like to go with higher quality, but, I don't want to get an MP3 player with a 20GB HDD - it was the ONLY reason I would have gone with nav - lol

I refuse to deal with it. The service manager told me the same thing, 'just turn up the radio it goes away'. I don't listen to music and don't think I should have to mask a sound that obviously doesn't belong.

Sounds like a potential Lemon Law case. Review the guidelines for your state. They have X amount of tries to fix it in X amount of time. If not, you can force a buyback.

Already have an attorney, the fact that I got a letter from the dealer and had Nissan mail me one as well. stating that they are aware of the issue but have no fix for it makes the 3x law moot.

Wow. I'm sorry to hear that. Of all the bogus complaints I read in here everyday.
I must say yours is legit and I hope u win your case. Do u think its a problem from the exhaust system or some type of chassis distortion?

At what vehicle speed and/or engine RPM do you hear the noise? I'm just curious, and it's something to look out if I purchase a 370Z. Thanks.

Sound is not there when idling, as soon as you move the sound is a constant noise you can't miss. It does not vary by RPM or speed its the same no matter what.

im a little confused sorry, where is the noise coming from?

have them drive another Z. mine does not make ANY noise than be heard while driving. sounds like a free Z to me!

I have driven 6 370Zs so far and I haven't heard it yet. Can anybody with this issue tell us the month the car was built?

My car does it but I can't hear it at all. However it drives my girlfriend up a wall and gives her headaches sometimes. She describes it as just a constant ringing, no change in pitch, no change in volume, just as long as the car is running it rings. For the people that can't hear it my guess is your car, and all the other Z's you've been in, make the same noise its just out of your hearing range. I was in a band through college and spent wayyy too much time standing directly in front of my amp.

There was another member on here that somehow traced it to a wiring bundle around the ECU in the passenger footwell. The dealer replaced the ECU and he said the ringing got quieter but didn't go away completely. Might be something to mention to your dealer.

I am not really that old and many younger people have been to at least one of those. I guess I will have to try harder to find it.

i can hear it if i listen really hard for it. My brother heard it first then pointed it out to me. But honestly i have not heard it since i tryed listening for it, i dont think it exists any more on my car.

If yours is loud enough to cause headaches, i suggest driving another 370z and see if its bad also. If both are bad then you may want to avoid 370z's all together. I suspect its just your car that is this bad or you have a different level of hearing than i do.

My sons younger ears hear the constant ringing as well. I don't. Too many P. Floyd and zztops concerts likely took away my upper range. Bout the only remedy I expect.

I heard a fly fart clean across my den last night but damn I can't hear the buzz in my Z?

I just heard it after I read this thread. Thanks alot! Jk... Oh well, didn't seem that annoying to me!

When this was discussed before we came to the conclusion that there were two different high pitched noises. The one I hear comes from the engine compartment and can be heard with the ignition on and the engine not running. Interestingly, if you put the MT in neutral (again with the engine not running) the noise stops.

I suppose mine does the same thing but I can't hear it due to the voices in my head...


Wait..what was that? Steal Tony's car? Yes..ok...

:ugh2:






In all honesty....either I cant hear in that range or my car doesn't do it.

I drove 3 other Z's on the lot and the noise was not happening in them. This is not the noise most people hear that is coming from the engine. I spoke to Nissan directly today and they said they are well aware of the issue but have no idea how to remedy the problem.

I have already contacted an attorney who is working with me to remedy this situation.

Don't know if my car makes this noise or not. I hear a high pitched noise all the time...it's called tinnitus. LOL.

This is not a noise you can ignore, you'll know if you have it. The 2 people at the dealer that could not hear it was the service manager who said he plays drums all the time and the head technician who was an old guy in his 50s+. As soon as they got a person in the car who didn't spend their life rocking out or still had their hearing heard the noise imminently.

Actually, it is ignorable. I notice it every time I start up and have my car running before moving...then I'm focusing on backing out of my garage without taking the driver's mirror off, or, hitting my truck parked on the right side of my driveway, or my car after that, and not getting slammed by someone on my street, while avoiding the truck parked across my driveway that belongs to my neighbor, while also avoiding my mailbox on the driver's side corner, as well as backing out such that I miss the curb and no scrape the nose of my Z.

After backing out, I pull forward to the stop sign, usually hang a right and I'm going fast enough the white noise generated from the tires, masks the high pitched sound. I turn on/up my music - and I can't hear anything else ;)

I have a microphone (several, actually), and some long cables, and could PROBABLY use my recording software to find out what frequency it is, and perhaps use one of the mics to help locate it...lol

Might be a project worth doing - lol...

Ok so you are willing to make excuses and find a reason to ignore it, I refuse to. I paid good money for a car to operate without me having to make a decision to ignore a problem. Nissan knows this is an issue and if more people would stop accepting it because they just have a hardon for the car and make Nissan fix it you wouldn't have to ignore a problem anymore.

That's precisely what should be done! Stick to you guns Roo, don't accept dissatisfaction!

The work order from Nissan

http://www.upitall.com/Private/u/3/292/3911

As long as they "varified and contataced" Nissan you should be alright!

I spoke to 800-Nissan1 and verified the information. I requested a letter be sent out to me stating that and they said ok. I'll post it when I receive it.

I've heard this sound myself and wondered if it was strange. I usually listen to the radio and such so i don't notice it all the time. It's very high pitched, but not very loud, and it does not vary with any RPM or radio volume. Its on the right side of the car, haven't pinpointed front or rear.

Can they swap out the ECM for a new one on the lot?

get the dealer to do a buy back??

takes a long time to deal with HQ to do it though, took one guy on myg37 about 6+ months

The dealer has no say on a buy back, that is between Roo and Nissan.

call up HQ then

Reading another post, I remember thinking it was the fuel pump at one time. I'm assuming we have an in-tank pump, not one in the engine bay, but I'm not sure.

Yes, there are two different high pitched noises. The engine compartment one can generally only be heard when you shut the engine off, and it continues to "whine" for about 2 seconds, then stops. This seems to exist on all 370s. The issue Roo has is totally different. This is an ECM issue and is sporadic as to the number of cars affected. My hearing is still good for my age, and I can tell you a continuous high pitched whine is obnoxious. Let's hope they fix it. If not, I would demand a replacement.

John

hmmm i think everyone i right when saying you are barking up the wrong tree
from all 3 threads you have posted its seems like fontana nissan has diagnosed the problem and is waiting for an answer from HQ

with that said you have to pick up your car and wait
to be honest i hear the noise once in a while but to me it is not a problem
maybe its mechanical and thats how its supposed to sound
for example i hear the fan and hard drive humming in my computer tower does it mean its broken??


in the 370z's case if everyone hears it maybe its normal
but i dont know im just saying you might blowing this out of proportion

I have this issue also. I have the 7AT and it only happens with the engine running and when driving. When you take your foot off of the gas the noise remains until the car comes to a stop, then the noise stops. It stays off until you step on the gas. It is a constant high freq sound and not too loud, but loud enough to hear without the radio on at least to moderate sound levels. The wheels of the car have to be turning for the noise to occur though. BUT it is definitely an electronic sound, it is not mechanical. 100% sure of that.

Is it the ECM or the ECU?? Are you guys making a typo? In one of the linked threads the original guy that found the problem said it was the ECU not the ECM (I don't know what ECU OR ECM stands for, just that it is some sort of electronic component behind the glove box in the dash). Are we transposing letters here? ECU or ECM?? Let's try and get the facts straight.

^
ECU = Electronic Control Unit
ECM = I don't know (may be Electronic Control Module :icon08:)