Did you hear that quick, short BUZZ?

Hi-Step'n370Z · 07-02-2010, 06:56 PM

I have the 7 speed auto. Has anyone heard a buzzing sound that seems to come from the top of the engine, back of the dash area?

When I start my Z, sometimes, not every time, I hear a short buzz right after the gauges have set themselves, kind of part of the "boot up" process. I also have heard it when accelerating to around 8000 rpm's, just as it gets there. Again, only once in a while.

frost · 07-02-2010, 06:57 PM

Sorry man, I have the auto but have never heard it.

m4a1mustang · 07-02-2010, 06:58 PM

Fuel pump?

frost · 07-02-2010, 06:59 PM

Quote:

Originally Posted by m4a1mustang

Fuel pump?

I definitely wouldn't describe that as a buzzing ... but we all hear things differently.

m4a1mustang · 07-02-2010, 07:02 PM

Quote:

Originally Posted by frost

I definitely wouldn't describe that as a buzzing ... but we all hear things differently.

Truth, more of a whining.

frost · 07-02-2010, 07:03 PM

Quote:

Originally Posted by m4a1mustang

Truth, more of a whining.

Yeah, that's a good word. An electric whining.

Hi-Step'n370Z · 07-02-2010, 07:14 PM

Quote:

Originally Posted by frost

Yeah, that's a good word. An electric whining.

Geeze! After all I heard about that awful whining sound, glad it's NOT that!!!

Nope! It's about a half second buzz. Maybe there's a bee in there and when I start the engine I wake him up!

Now that I have around 4000 miles on my Z and everything's had time to "wear in," it's probably some little part on the engine that is showing it's personality.

As I say, not every time, in fact, hasn't done it in a few days.

I'm more curious that anything else. No big deal.

Trips · 07-02-2010, 07:18 PM

7k On the clock, and no issues with noises.

frost · 07-02-2010, 07:20 PM

Quote:

Originally Posted by Hi-Step'n370Z

Geeze! After all I heard about that awful whining sound, glad it's NOT that!!!

Nope! It's about a half second buzz. Maybe there's a bee in there and when I start the engine I wake him up!

Now that I have around 4000 miles on my Z and everything's had time to "wear in," it's probably some little part on the engine that is showing it's personality.

As I say, not every time, in fact, hasn't done it in a few days.

I'm more curious that anything else. No big deal.

Have you noticed if it does it when you turn on the car, but not actually start the engine?

memorylasts · 07-02-2010, 07:21 PM

I have a manual, i have heard it or something similar, i believe it is in the dash area or thats where mine seems to be coming from...

i am in the process of tracking it down... and no, i haven't taken apart the dash before.

fullmonty · 07-02-2010, 08:17 PM

Can't say I've ever really noticed it

Jordo! · 07-02-2010, 11:07 PM

2009 Z? This may be the infamous ECU whine.

6spd · 07-03-2010, 09:19 AM

does it do it when you accelerate, and worse when the a/c is on? my plastic shield between the wiper arms and windshield vibrated like you describe, but also at 2.5-3k rpms. I put thin sheets of foam under the shield and its gone completely. took me forever to find it, but i knocked it out as well as my strut bar vibration and hatch rattle all in one night!

6MT · 07-03-2010, 09:22 AM

Quote:

Originally Posted by Hi-Step'n370Z

I also have heard it when accelerating to around 8000 rpm's, just as it gets there. Again, only once in a while.

8K?(!) I would think the engine may make some sort of strange "noises" when revving that high.

07-02-2010, 06:56 PM	#1 (permalink)
Hi-Step'n370Z Enthusiast Member Join Date: Dec 2009 Location: new york Posts: 425 Drives: '10ZR S/B AT Tour NV Rep Power: 277	Did you hear that quick, short BUZZ? I have the 7 speed auto. Has anyone heard a buzzing sound that seems to come from the top of the engine, back of the dash area? When I start my Z, sometimes, not every time, I hear a short buzz right after the gauges have set themselves, kind of part of the "boot up" process. I also have heard it when accelerating to around 8000 rpm's, just as it gets there. Again, only once in a while.

07-02-2010, 06:58 PM	#3 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	Fuel pump? __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

07-02-2010, 07:18 PM	#8 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,728 Drives: 🔰 Rep Power: 10	7k On the clock, and no issues with noises. __________________

07-02-2010, 07:21 PM	#10 (permalink)
memorylasts A True Z Fanatic Join Date: Mar 2010 Location: San Diego Posts: 1,125 Drives: Cars... Rep Power: 17	I have a manual, i have heard it or something similar, i believe it is in the dash area or thats where mine seems to be coming from... i am in the process of tracking it down... and no, i haven't taken apart the dash before. __________________ somewhat-journal-thingy

07-02-2010, 08:17 PM	#11 (permalink)
fullmonty A True Z Fanatic Join Date: Nov 2009 Location: Dirty Jersey Posts: 7,762 Drives: 370 Touring/Sport Rep Power: 33	Can't say I've ever really noticed it __________________

07-02-2010, 11:07 PM	#12 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 417	2009 Z? This may be the infamous ECU whine. __________________ Enjoy it. Destroy it.

07-03-2010, 09:19 AM	#13 (permalink)
6spd A True Z Fanatic Join Date: Aug 2009 Location: South Florida Posts: 3,001 Drives: Q50RS Rep Power: 24	does it do it when you accelerate, and worse when the a/c is on? my plastic shield between the wiper arms and windshield vibrated like you describe, but also at 2.5-3k rpms. I put thin sheets of foam under the shield and its gone completely. took me forever to find it, but i knocked it out as well as my strut bar vibration and hatch rattle all in one night! __________________ -Jay- jonathanjamesphotographer.com

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