High-Pitched Frequency Update

Tyrell Tyson

Yoyo

Bumblez posted in my thread about the same thing, i pmd him few days ago. Here was his post

Bumblez-
"Ok... here is update for my highpitch noise.
My dealer just change ECU which is ending with A..
That noise has been reduced a little bit but still can hear.
General service maneger was not there when I picked up my car.
I think he might say try another ECU.
Anyways... we gonna talk about this on monday.
I will ask them to change to another Z.
If they say NO?? I will hire an attorney."

SUCKS BALLS huh

Does anyone out there know a fix for this problem that effects alot of Z owners ?? can anyone solve it, 1 million dollars to the man that does

- Ty

NXTAZEE

Once in a while I hear a very slight high pitch noise, but it comes from the rear of the car. This I would think is the fuel pump. I hear this in a lot of cars, mainly from the outside of the car though. This is probably because most cars have a lot more sound proofing than the Z.

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jloomis13

Any news from anyone on this issue? I just hit 3100 miles on my '09 and have had this issue for about a month. Took it to the local dealer yesterday and only one other person could here it, and they "can't replicate the sound" and are unwilling to offer a fix. Looking for any help I can get at this point!

Csquared

Drive the car with the service manager in it, and point it out to him. Or get those sound measuring devices that measures the frequency of sounds. And show him.

mcphelps

I thought I had this problem with my car. Turns out my wife had closed the A/C vent on the passenger door, causing a high pitched noise where the air was leaking out at the door-to-dash seal. Whew!

bumblez

Had FIXED HIGH PITCH NOISE (ECU)

gumpy

If the noise is coming from the back part of the car it's the fuel pump isn't it?

I have a feeling i'm hearing the fuel pump... it's loud at a cold start and then dies away... after awhile i can only hear it when i've pulled up at the lights which is different from most of you guys...

Paskii

Thanks everyone for their input in solving this issue. I thought I had hearing problems and glad to know it's not my ears that's busted.

I brought my car into the dealer and they can't hear it, anyone have any tips on how to help out the technicians to hear the sound, its very likely because they work in a loud environment their hearing deteriorated over time. I called Nissan and they couldn't help me they said they rely on the dealerships to diagnose the issue. If they can't replicate the problem nothing can be done.

If anyone knows any helpful tips or people to call that would be great.

Thanks

m4a1mustang

Tell them to put a young person in the car, preferably a young female, even if they have to grab someone out of sales. They can pick up on the sound pretty easily.

Older service techs simply can't hear that frequency.

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Paskii

Funny thing is I did recommend that and they seem somewhat offended and just replied no one is available otherwise they don't want to waste time on this and want to move on. It's frustrating to go back and forth with the dealers and they think your crazy or annoying.

To be honest I don't hear all the time but when I do it bugs the crap out of me and you know what you buy a new car you don't want one that is broken in any way and it's simply about principle for me. The manufacturer can at least address the issue rather than play dumb. I'll try again but I hope a TSB is up which I doubt cause the ECU is pricey. Hopefully before my warranty expires lol

Thanks everyone for their help!

Silver37

You Z guys need to get your service folks to work with Consumer Affairs like those of us on the G side have. I went to my service guy first and mentioned that I saw there was a fix for the problem. He discussed with the CA folks when he saw them and he called me in for the fix. I've seen where some others have gone straight to the CA folks first, and that may work, but I felt that I owed it to my service guy to go to him first since he had done a great job on everything else that I brought him, and I had already had him hunt for the problem before.

cubarican84

If it doesnt drive you madd then you are not reffering to the sound that some of us are... If you have good enough hearing it is an ear splitting noise that ruins the experience of driving the Z. Not subtle at all, and not present in every Z. So to those who don't hear it, it's not an issue for you. No use in trying to "listen" for it as a precaution. Like i've PM'd many of you, it is a problem that nissan has acknowledged and is covered under your warranty. As far as part numbers there seems to be a slite discrepency over what the fix is. I know for me, the part number ended in 3b. My drive home after having the part replaced was both a relief and a "re-bonding" ride with my beloved Z.

spearfish25

My high frequency noise has gone away. Not sure WTF happened, but it's just simply gone now.

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JB1

You're getting old

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