A problem that dealers don't even know

JohnYu · 05-15-2015, 10:01 PM

Hey guys , I have a 12 nismo 370z and I have heard some noise from my car , it is really hard to describe the sounds but I got lucky to record the noise by iPhone 6 , the reason why I want to post a audio file on the forum because I took my car to biggest Nissan dealership in Charlotte nc two weeks ago , they heard the noise comes from my car too but they are just cant tell me what is wrong with the car and where does the noise come from . They have my car over 2 weeks now , and they have drove my car over 250miles by the time I just took my car to the dealer !!!!!!!!!!!!! From 2 weeks till today , the only answer they can give me is : we tried everything we could , and we don't see any problems, but we heard the noise , we will keep trying to find out the noise problem . . I don't know what to do now guys , they may just going to put more miles into my car and still can not give me a damn answer ! Please help me to post a audio on the forum so that everyone can hear that see what is going out , maybe one of your guys have the same proble to your car !! Thanks !!!! Anybody are interesting in listen to the noise I would be more than happy to send you the audio file by email easily ! I bet you do wanna know what type of noise that dealer can't even tell , right ?

tnav · 05-15-2015, 10:31 PM

Does it go away when you press the clutch? If you get close to a wall of some sort such as a drive-thru, you'll be able to hear it more

JohnYu · 05-15-2015, 10:48 PM

Quote:

Originally Posted by tnav

Does it go away when you press the clutch? If you get close to a wall of some sort such as a drive-thru, you'll be able to hear it more

Ok , from what I have been experience the noise is more coming from driver seat area , it sounds more like 2 pics metal concat each other , more sounds like ecu or fuel pump just like Z z zz zzzz zz z zz zzzzzz that type high pitched sounds, it used to happen on low speed , now I just can hear it more offen on high speed which Is 65 miles or higher , I have record the noise by using my iPhone voice memo app , I am trying to upload it see if you guys have the same problem, but I don't know how to ....

JohnYu · 05-15-2015, 10:51 PM

Quote:

Originally Posted by tnav

Does it go away when you press the clutch? If you get close to a wall of some sort such as a drive-thru, you'll be able to hear it more

Hey man , if you want you can send me your email address so that I can just send the audio to you easy if you want to hear it .

Zoren 370 · 05-15-2015, 11:00 PM

The dealership drove your Z for 250miles and not even a solution to your problem?

I bet every sales rep or service advisor took turns joy riding your Z.
Worst used it to for customers to test drive looking to buy a Z.

You should have charged them with the miles. I'll burn that dealership down.

JohnYu · 05-15-2015, 11:07 PM

Quote:

Originally Posted by Zoren 370

The dealership drove your Z for 250miles and not even a solution to your problem?

I bet every sales rep or service advisor took turns joy riding your Z.
Worst used it to for customers to test drive looking to buy a Z.

You should have charged them with the miles. I'll burn that dealership down.

I know , I am really pissed ! But I have no prove to show they drove my car 250miles .... I didn't take a pic of my car mileage.

Jordo! · 05-15-2015, 11:46 PM

High pitched whine or metal-on-metal?

If the former, it's something electrical -- there used to be a known issue with "ECU whine".

There is also an occasional fuel pump whine that can be heard when shutting the car down -- it's possible that something is amiss with the pump or the switch for it. I can't recall the exact reason for the noise, but its worth checking.

If it's metal-on-metal, the brake dust shield can make contact with the caliper and cause a horrendous metal on metal screeching noise.

On inspection, nothing will be apparent and it doesn't even seem to cause any visible scoring or damage. Basically, the shield just has to be bent back a bit for a few mm of extra clearance.

Can you post a recording of the sound?

cooltoy · 05-16-2015, 12:31 AM

Did you record the sound as a video or an audio file?

If you recorded it as a video file, just put it up on youtube and hen post the link here.

JohnYu · 05-16-2015, 01:13 AM

Quote:

Originally Posted by Jordo!

High pitched whine or metal-on-metal?

If the former, it's something electrical -- there used to be a known issue with "ECU whine".

There is also an occasional fuel pump whine that can be heard when shutting the car down -- it's possible that something is amiss with the pump or the switch for it. I can't recall the exact reason for the noise, but its worth checking.

If it's metal-on-metal, the brake dust shield can make contact with the caliper and cause a horrendous metal on metal screeching noise.

On inspection, nothing will be apparent and it doesn't even seem to cause any visible scoring or damage. Basically, the shield just has to bei bent back a bit for a few mm of extra clearance.

Can you post a recording of the sound?

I did record a audio file by using iPhone voice memo app , don't know how to post it on the forum, send me the email address I can just send the audio by email

JohnYu · 05-16-2015, 01:14 AM

Quote:

Originally Posted by cooltoy

Did you record the sound as a video or an audio file?

If you recorded it as a video file, just put it up on youtube and hen post the link here.

I recorded it as audio file , don't know how to post it here , I can send it to you by email if you want

cooltoy · 05-16-2015, 01:49 AM

Can you zip it?

cooltoy · 05-16-2015, 01:54 AM

If so, make sure the zipped file is 97.7 kb or less, then click on go advanced, then click on the paper clip icon and browse for your file and post.

dP3NGU1N · 05-16-2015, 02:25 AM

Can you upload to youtube and share a link?

DEpointfive0 · 05-16-2015, 02:40 AM

Quote:

Originally Posted by JohnYu

I recorded it as audio file , don't know how to post it here , I can send it to you by email if you want

PM'd

UNKNOWN_370 · 05-16-2015, 02:59 AM

Quote:

Originally Posted by Jordo!

High pitched whine or metal-on-metal?

If the former, it's something electrical -- there used to be a known issue with "ECU whine".

There is also an occasional fuel pump whine that can be heard when shutting the car down -- it's possible that something is amiss with the pump or the switch for it. I can't recall the exact reason for the noise, but its worth checking.

If it's metal-on-metal, the brake dust shield can make contact with the caliper and cause a horrendous metal on metal screeching noise.

On inspection, nothing will be apparent and it doesn't even seem to cause any visible scoring or damage. Basically, the shield just has to be bent back a bit for a few mm of extra clearance.

Can you post a recording of the sound?

Remember the good ole days of ECU whine, rear latch issue, axle slack and oil consumption? lol That was before fuel starve, csc, etc... lol

05-15-2015, 10:01 PM	#1 (permalink)
JohnYu Base Member Join Date: Dec 2012 Location: Charlotte Posts: 92 Drives: nismo 370 Rep Power: 12	A problem that dealers don't even know Hey guys , I have a 12 nismo 370z and I have heard some noise from my car , it is really hard to describe the sounds but I got lucky to record the noise by iPhone 6 , the reason why I want to post a audio file on the forum because I took my car to biggest Nissan dealership in Charlotte nc two weeks ago , they heard the noise comes from my car too but they are just cant tell me what is wrong with the car and where does the noise come from . They have my car over 2 weeks now , and they have drove my car over 250miles by the time I just took my car to the dealer !!!!!!!!!!!!! From 2 weeks till today , the only answer they can give me is : we tried everything we could , and we don't see any problems, but we heard the noise , we will keep trying to find out the noise problem . . I don't know what to do now guys , they may just going to put more miles into my car and still can not give me a damn answer ! Please help me to post a audio on the forum so that everyone can hear that see what is going out , maybe one of your guys have the same proble to your car !! Thanks !!!! Anybody are interesting in listen to the noise I would be more than happy to send you the audio file by email easily ! I bet you do wanna know what type of noise that dealer can't even tell , right ? Last edited by JohnYu; 05-15-2015 at 10:59 PM. Reason: More information

05-15-2015, 11:00 PM	#5 (permalink)
Zoren 370 A True Z Fanatic Join Date: Mar 2012 Location: FL Posts: 11,018 Drives: 11 Nissan 370 M6 Rep Power: 1913653	The dealership drove your Z for 250miles and not even a solution to your problem? I bet every sales rep or service advisor took turns joy riding your Z. Worst used it to for customers to test drive looking to buy a Z. You should have charged them with the miles. I'll burn that dealership down. onzedge, DEpointfive0, Zbrah and 3 others like this.

05-15-2015, 11:46 PM	#7 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	High pitched whine or metal-on-metal? If the former, it's something electrical -- there used to be a known issue with "ECU whine". There is also an occasional fuel pump whine that can be heard when shutting the car down -- it's possible that something is amiss with the pump or the switch for it. I can't recall the exact reason for the noise, but its worth checking. If it's metal-on-metal, the brake dust shield can make contact with the caliper and cause a horrendous metal on metal screeching noise. On inspection, nothing will be apparent and it doesn't even seem to cause any visible scoring or damage. Basically, the shield just has to be bent back a bit for a few mm of extra clearance. Can you post a recording of the sound? UNKNOWN_370 and DEpointfive0 like this. __________________ Enjoy it. Destroy it. Last edited by Jordo!; 05-15-2015 at 11:50 PM.

05-16-2015, 12:31 AM	#8 (permalink)
cooltoy Elite Member Join Date: Jun 2012 Location: Calgary Posts: 13,973 Drives: 14 PW 370Z S/T MT Rep Power: 243722	Did you record the sound as a video or an audio file? If you recorded it as a video file, just put it up on youtube and hen post the link here. __________________ Member of kenchan's "photoshopped mods" and "proper offsets" gang.

05-16-2015, 01:49 AM	#11 (permalink)
cooltoy Elite Member Join Date: Jun 2012 Location: Calgary Posts: 13,973 Drives: 14 PW 370Z S/T MT Rep Power: 243722	Can you zip it? __________________ Member of kenchan's "photoshopped mods" and "proper offsets" gang.

05-15-2015, 10:31 PM	#2 (permalink)
tnav Enthusiast Member Join Date: Sep 2013 Location: SoCal Posts: 316 Drives: 2012 370z Silver 6sp Rep Power: 12	Does it go away when you press the clutch? If you get close to a wall of some sort such as a drive-thru, you'll be able to hear it more

05-16-2015, 01:54 AM	#12 (permalink)
cooltoy Elite Member Join Date: Jun 2012 Location: Calgary Posts: 13,973 Drives: 14 PW 370Z S/T MT Rep Power: 243722	If so, make sure the zipped file is 97.7 kb or less, then click on go advanced, then click on the paper clip icon and browse for your file and post. __________________ Member of kenchan's "photoshopped mods" and "proper offsets" gang.

05-16-2015, 02:25 AM	#13 (permalink)
dP3NGU1N A True Z Fanatic Join Date: Feb 2011 Location: Irvine Posts: 1,682 Drives: 13 PW sport 6mt Rep Power: 18	Can you upload to youtube and share a link? __________________ 35% Hooper Optik \| Takeda Attack CAI \| F.I. HFC \| Hotchkis Sway Bar \| Stillen 24row \| OS Giken Super Lock LSD \| TK Shift Knob \| EVO-R Carbon Diffuser

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