High-Pitched Frequency Update

WooZ · 11-18-2009, 09:54 AM

Quote:

Originally Posted by TheWeatherman

For those of you who don't know, this is a problem not only on the 370Z and the G37, but I also heard it in my sister's 2008 EX35.

So Nissan knows of this problem even from the 3.5 and there is still no fix since then yet? That's weak.

TheWeatherman · 11-18-2009, 10:00 AM

Quote:

Originally Posted by WooZ

So Nissan knows of this problem even from the 3.5 and there is still no fix since then yet? That's weak.

Yeah. The EXers are well aware of it.

phelan · 11-18-2009, 10:12 AM

Quote:

Originally Posted by WooZ

So Nissan knows of this problem even from the 3.5 and there is still no fix since then yet? That's weak.

probably because nobody has really complained about it before the way the G/Z crowd is right now. i commend the G people for isolating the sound. that's the exact frequency i'm hearing, and even now it just frustrates the hell out of me. the noise for me basically occurs after the car is warmed, no matter what gear i'm in, and no matter what i'm doing.

and i thought i was crazy when i first got the car and had ringing in my ears when i stepped out of it!

Weatherman: clearly your dealership is much more helpful than mine, who are completely clueless.

yubman · 11-18-2009, 09:31 AM

Quote:

Originally Posted by LSUTurboTiger

The sound is bad enough, but two things really make it worse. One, it comes and goes depending on how you turn your head. Look at your left side mirror and you hear it, turn your head enough to the right and you hear it. That almost makes it worse than a constant noise. (ALMOST). the other bad thing is it lingers in your hearing after you get out of the car. For the next 30 minutes to an hour you still feel like you are hearing that high pitched noise.

I have been putting off taking my car in hoping that a TSB was soon to be released. That would mean I wouldn't have to go in and argue with the dummies at my dealership that there is a noise coming from the ECU. However, I am not sure how much longer I can stand this stupid noise. I like AM radio in the mornings and at lunch, but usually listen to music in the afternoons which will cover the noise.

You should take it in and at least report you have the problem. At the very least Nissan can get some statistics back from actual customers.

jpit · 11-18-2009, 09:45 AM

I am still trying to determine if there are two different noises we are hearing. In my case, if the car is not running but the ignition is on (MT car in gear) you can hear a high pitched whine (right around 10k) coming from the engine compartment. Interestingly, if you put the car in neutral the noise goes away. Those who have a noise problem would you try that combination and see what happens.

TheWeatherman · 11-18-2009, 09:53 AM

Quote:

Originally Posted by jpit

I am still trying to determine if there are two different noises we are hearing. In my case, if the car is not running but the ignition is on (MT car in gear) you can hear a high pitched whine (right around 10k) coming from the engine compartment. Interestingly, if you put the car in neutral the noise goes away. Those who have a noise problem would you try that combination and see what happens.

Mine does it whether in neutral or not. I believe mine is only when the engine's running, though I've never sat with the ignition just sitting in the 'on' postion without the engine running. No noise when in ACC position.

Zeto · 11-18-2009, 10:17 AM

OMG that sound is exactly it!

TheWeatherman · 11-18-2009, 10:26 AM

Here's a GREAT post from our G37 friends.

Today, 12:08 PM #232
punker
Registered User

Trader Score: (0)
Join Date: Nov 2009
Posts: 4

We got a call from our dealer in Alexandria VA yesterday. He said that infiniti's engineers are 'well aware' of the issue' at this point, and are looking for a way to solve it. They are calling it the 'young ears' problem, for obvious reasons. They also said that solutions they have tried so far have been hit or miss, but one that creates more problems than it solves (generally speaking) is insulating the ECU to dampen the noise. Turns out that spraying foam on an ECU will cause it to heat up too much. Go figure. Right now I've got an old comforter stuffed in the passenger footwell. It works, kind of. So, bottom line - infiniti knows, and is working on it. The very latest I'd expect a solution is right before they roll out next years models. They dont want to perpetuate the issue, but the die has been cast for our model years.

semtex · 11-18-2009, 12:36 PM

I'm curious -- those of you who are suffering through this issue, did you not notice it when you took your cars for a test drive? Or did some of you not test drive at all? Or did the problem develop only after you took possession (i.e., it started after x number of miles)?

phelan · 11-18-2009, 12:57 PM

Quote:

Originally Posted by semtex

I'm curious -- those of you who are suffering through this issue, did you not notice it when you took your cars for a test drive? Or did some of you not test drive at all? Or did the problem develop only after you took possession (i.e., it started after x number of miles)?

salesperson was talking to me. when i told him to shut up and let me drive, i didn't notice it because i was intent on the road, if that makes any sense. now during normal driving circumstances it's quite noticeable.

it's been growing, actually. to me, it's a lot louder than it was before. maybe because i notice it and i get into the car thinking "that damn noise needs to stop"??

SiXK · 11-18-2009, 01:08 PM

Quote:

Originally Posted by semtex

I'm curious -- those of you who are suffering through this issue, did you not notice it when you took your cars for a test drive? Or did some of you not test drive at all? Or did the problem develop only after you took possession (i.e., it started after x number of miles)?

Mine started just about 8500 miles. I had read the threads by Roo a while back, and had listened for it but it wasn't there. Then one morning I got in the car and it was there.

semtex · 11-18-2009, 01:23 PM

Quote:

Originally Posted by LSUTurboTiger

Mine started just about 8500 miles. I had read the threads by Roo a while back, and had listened for it but it wasn't there. Then one morning I got in the car and it was there.

Okay, now that's horrifying.

m4a1mustang · 11-18-2009, 02:38 PM

Quote:

Originally Posted by LSUTurboTiger

Mine started just about 8500 miles. I had read the threads by Roo a while back, and had listened for it but it wasn't there. Then one morning I got in the car and it was there.

Exactly! Mine started right around that same mileage as well. Up until that point I read these threads thinking, "man, I'm really lucky I didn't get one of those!"

It is horrible. Even with my exhaust it is just killer... gives me headaches all the time. I hate it.

I am tempted to take the car in but doubt it'd do any good... thinking maybe I'll just call my dealer to see if they've been dealing with any of this and have them let me know when they see a TSB come down.

Silver37 · 11-18-2009, 08:44 PM

Quote:

Originally Posted by m4a1mustang

Exactly! Mine started right around that same mileage as well. Up until that point I read these threads thinking, "man, I'm really lucky I didn't get one of those!"

It is horrible. Even with my exhaust it is just killer... gives me headaches all the time. I hate it.

I am tempted to take the car in but doubt it'd do any good... thinking maybe I'll just call my dealer to see if they've been dealing with any of this and have them let me know when they see a TSB come down.

Great multiple posts to both of you. The noise in my G37 started about the same time as you saw...8K+ miles during a road trip. I thought it was just the specific rough stretch of interstate highway that I was on and something was loose. It initially went away when I got to smoother pavement, but now I hear it almost every day. Every once in a while I get a reprieve and don't hear it for a day or two, which makes it even more perplexing and makes me feel that the problem is more involved than simply the ECU. Weatherman, I'm like you...I hate this noise with a passion and I'm glad to hear someone finally mention a specific dealer name and service writer that has acknowledged the issue. I would think by now that all the dealers would have been advised of the potential problem, but my dealer couldn't replicate the problem. The loaner G35 they gave me had the same issue. I really like my car other than this problem, and I'm determined to find a solution other than stuffing a gym bag in the footwell of the passenger side! Thanks for all the good scoop from the Z side.

Marcus Ryan · 01-08-2011, 01:34 AM

Quote:

Originally Posted by Silver37

Great multiple posts to both of you. The noise in my G37 started about the same time as you saw...8K+ miles during a road trip. I thought it was just the specific rough stretch of interstate highway that I was on and something was loose. It initially went away when I got to smoother pavement, but now I hear it almost every day. Every once in a while I get a reprieve and don't hear it for a day or two, which makes it even more perplexing and makes me feel that the problem is more involved than simply the ECU. Weatherman, I'm like you...I hate this noise with a passion and I'm glad to hear someone finally mention a specific dealer name and service writer that has acknowledged the issue. I would think by now that all the dealers would have been advised of the potential problem, but my dealer couldn't replicate the problem. The loaner G35 they gave me had the same issue. I really like my car other than this problem, and I'm determined to find a solution other than stuffing a gym bag in the footwell of the passenger side! Thanks for all the good scoop from the Z side.

Ditto, around 8-9k for me

11-18-2009, 12:36 PM	#9 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 33	I'm curious -- those of you who are suffering through this issue, did you not notice it when you took your cars for a test drive? Or did some of you not test drive at all? Or did the problem develop only after you took possession (i.e., it started after x number of miles)? __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

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11-18-2009, 09:45 AM	#5 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 17	I am still trying to determine if there are two different noises we are hearing. In my case, if the car is not running but the ignition is on (MT car in gear) you can hear a high pitched whine (right around 10k) coming from the engine compartment. Interestingly, if you put the car in neutral the noise goes away. Those who have a noise problem would you try that combination and see what happens.

11-18-2009, 10:17 AM	#7 (permalink)
Zeto Track Member Join Date: Apr 2009 Location: North NJ Age: 41 Posts: 766 Drives: 09 Pearl White 370Z Rep Power: 268	OMG that sound is exactly it!

11-18-2009, 10:26 AM	#8 (permalink)
TheWeatherman Enthusiast Member Join Date: Mar 2009 Location: Milwaukee, WI Posts: 265 Drives: 2009 370Z 6MTw/Sport Rep Power: 17	Here's a GREAT post from our G37 friends. Today, 12:08 PM #232 punker Registered User Trader Score: (0) Join Date: Nov 2009 Posts: 4 We got a call from our dealer in Alexandria VA yesterday. He said that infiniti's engineers are 'well aware' of the issue' at this point, and are looking for a way to solve it. They are calling it the 'young ears' problem, for obvious reasons. They also said that solutions they have tried so far have been hit or miss, but one that creates more problems than it solves (generally speaking) is insulating the ECU to dampen the noise. Turns out that spraying foam on an ECU will cause it to heat up too much. Go figure. Right now I've got an old comforter stuffed in the passenger footwell. It works, kind of. So, bottom line - infiniti knows, and is working on it. The very latest I'd expect a solution is right before they roll out next years models. They dont want to perpetuate the issue, but the die has been cast for our model years.