High pitch noise coming from passenger side

WShade · 06-18-2009, 07:38 PM

On whine I hear is the fuel pump.

jpit · 06-18-2009, 08:36 PM

Roo,

The ignition switch is in the on position and it could very well be the fuel pump. Would the fuel pump go off in neutral?

Roo · 06-18-2009, 08:39 PM

Quote:

Originally Posted by jpit

Roo,

The ignition switch is in the on position and it could very well be the fuel pump. Would the fuel pump go off in neutral?

Excuse my newbie question since I have only had the car a few days and don't drive it. How do you turn the ignition switch on a car that does not have an ignition?

jpit · 06-18-2009, 08:40 PM

Push the ignition button once quickly for ACC, twice for on and hold to start.

Roo · 06-18-2009, 10:50 PM

Quote:

Originally Posted by jpit

Push the ignition button once quickly for ACC, twice for on and hold to start.

Ahh gotcha thanks

NRGSwing · 06-18-2009, 09:34 PM

Quote:

Originally Posted by jpit

Roo,

The ignition switch is in the on position and it could very well be the fuel pump. Would the fuel pump go off in neutral?

It's not the fuel pump, I think you can hear the fuel pump pressurize whe you first switch to "ON". This is higher pitched. I noticed it when I was burning a disc to the music box. Car "ON", in gear, but not running. Hadn't noticed anything about shifting to neutral, but I think this isn't related to OP issue as I don't hear it when driving.

Edit:
Ok, just went to the garage, it does go off in neutral. Seems to be coming from right under the engine cover near the firewall, almost dead center. With a closer listen, it almost sounds like you can hear something like a disk drive spinning as well so maybe it's associated with the Music Box although it wouldn't make any sense for it to be connected to being in gear.

Roo · 06-18-2009, 10:51 PM

Ok so I go in the car and push the button once and it turns on... If i push it twice it turns on... If i hold it turns on.... How do I access ACC/On mode?

WShade · 06-18-2009, 11:03 PM

Quote:

Originally Posted by Roo

Ok so I go in the car and push the button once and it turns on... If i push it twice it turns on... If i hold it turns on.... How do I access ACC/On mode?

6MT don't push the clutch in and 7AT don't apply the brake prior pushing the ignition. Or, after it is started press once to turn off and twice quickly to access ACC.

CCCLXXZ · 06-18-2009, 10:53 PM

What if being in gear was related to the the synchro rev feature, maybe some time of second control unit for the throttle bodies, being in gear it would have signal... in neutral not so much. Although that is a complete guess since I exactly know how the fly by wire function actually works on the z.

Nick

NRGSwing · 06-19-2009, 12:42 AM

Quote:

Originally Posted by CCCLXXZ

What if being in gear was related to the the synchro rev feature, maybe some time of second control unit for the throttle bodies, being in gear it would have signal... in neutral not so much. Although that is a complete guess since I exactly know how the fly by wire function actually works on the z.

Nick

I suspect if this were it, turning off SRM would kill it, but it doesn't. Commonality for all posters here seems to be nav, so it's likely related to nav system or music box, but the in gear vs out of gear part has me stumped.

jpit · 06-19-2009, 12:59 AM

I don't have nav. Also, I'm not sure that the problem discussed at the beginning of the thread is the same one we're talking about.

Minicobra1 · 06-19-2009, 05:33 AM

I have the noise too, it's high pitched and constant, does not change with RPM, etc.
sounds like the ringing that you hear after coming out of a rock concert. I noticed it more after driving for awhile, it gets louder. Probably b/c every electrical component has warmed up. It's definitely electrical. I thought it was the HID lights, but it's still there if you turn the lights off. It's coming from right under the dash somewhere, but have not been able to pin point it. Might be a grounding issue or wire shielding issue of some sort. Another problem I have is that when my cell phone is in the center console or cup holder, I get the dreaded chatter through the speakers, just before receiving a call or text message. So I know their is a wire shielding issue there, but not sure if it is related.

huff442 · 06-19-2009, 06:23 AM

I had a similar noise in my car. A high pitched whine coming from the passenger side. Guess what it was? My wife closed the air vent on the door. With the fan speed set to AUTO, the velocity of the air moving through the slits in the now-closed vent was fast enough to turn it into a dog whistle!

Check your vent and see if it's closed.

Roo · 06-18-2009, 11:14 PM

Ahh gotcha, I had my foot on the brake. Thanks!

spearfish25 · 06-20-2009, 07:21 AM

Guys, EVERYONE has this noise. There were many threads about it a few months ago and it seemingly died off as people either 1) got used to it or 2) changed their exhaust which probably drowned it out with the louder exhaust note. The noise was described as a high pitch, electronic sounding whine that is difficult to localize but appears to be coming from the engine bay.

I too frequently hear the noise but fortunately it doesn't bother me as much and has just become a part of the car for me. However, I'd love to hear what's causing it and have it changed if possible.

From the original threads about this, G37 owners claim to hear it as well.

06-18-2009, 07:38 PM	#1 (permalink)
WShade Track Member Join Date: Jan 2009 Location: San Antonio, TX Posts: 765 Drives: 09 370Z T/S/N Rep Power: 188	On whine I hear is the fuel pump. __________________ Q50S Q60 RS400

06-19-2009, 05:33 AM	#12 (permalink)
Minicobra1 A True Z Fanatic Join Date: Nov 2008 Location: Orange County, CA. Posts: 1,205 Drives: 370Z Tour, Spt, 6mt Rep Power: 645	I have the noise too, it's high pitched and constant, does not change with RPM, etc. sounds like the ringing that you hear after coming out of a rock concert. I noticed it more after driving for awhile, it gets louder. Probably b/c every electrical component has warmed up. It's definitely electrical. I thought it was the HID lights, but it's still there if you turn the lights off. It's coming from right under the dash somewhere, but have not been able to pin point it. Might be a grounding issue or wire shielding issue of some sort. Another problem I have is that when my cell phone is in the center console or cup holder, I get the dreaded chatter through the speakers, just before receiving a call or text message. So I know their is a wire shielding issue there, but not sure if it is related. __________________ 370z Tour\| Spt Pack\|Navi\|BERK CBE\|Berk HFC's\| Eibach Springs\| Hotchkis Sway Bars\|SPC Camber Arms\|15mm Ichiba Wheel Spacers\| 19"Factory Nismo Wheels-Matt Black\|Stop Tech Rotors\|TWM Shifter\|3M Tint\|Black Fangs\|Black Rear Valance\|JDM Fog Light\| MY BAND-www.myspace.com/petroleum

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06-18-2009, 08:36 PM	#2 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 17	Roo, The ignition switch is in the on position and it could very well be the fuel pump. Would the fuel pump go off in neutral?

06-18-2009, 08:40 PM	#4 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 17	Push the ignition button once quickly for ACC, twice for on and hold to start.

06-18-2009, 10:51 PM	#7 (permalink)
Roo Base Member Join Date: Jun 2009 Location: Alta Loma Posts: 161 Drives: 2009 370z with nav Rep Power: 17	Ok so I go in the car and push the button once and it turns on... If i push it twice it turns on... If i hold it turns on.... How do I access ACC/On mode?

06-18-2009, 10:53 PM	#9 (permalink)
CCCLXXZ Base Member Join Date: May 2009 Location: Chicago Suburbs Posts: 164 Drives: T/S/MB/6 370z Rep Power: 402	What if being in gear was related to the the synchro rev feature, maybe some time of second control unit for the throttle bodies, being in gear it would have signal... in neutral not so much. Although that is a complete guess since I exactly know how the fly by wire function actually works on the z. Nick

06-19-2009, 12:59 AM	#11 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 17	I don't have nav. Also, I'm not sure that the problem discussed at the beginning of the thread is the same one we're talking about.

06-19-2009, 06:23 AM	#13 (permalink)
huff442 Enthusiast Member Join Date: May 2009 Location: NW Arkansas Age: 55 Posts: 309 Drives: 09 370Z 6mt Tour/Spt Rep Power: 17	I had a similar noise in my car. A high pitched whine coming from the passenger side. Guess what it was? My wife closed the air vent on the door. With the fan speed set to AUTO, the velocity of the air moving through the slits in the now-closed vent was fast enough to turn it into a dog whistle! Check your vent and see if it's closed.

06-18-2009, 11:14 PM	#14 (permalink)
Roo Base Member Join Date: Jun 2009 Location: Alta Loma Posts: 161 Drives: 2009 370z with nav Rep Power: 17	Ahh gotcha, I had my foot on the brake. Thanks!

06-20-2009, 07:21 AM	#15 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1857	Guys, EVERYONE has this noise. There were many threads about it a few months ago and it seemingly died off as people either 1) got used to it or 2) changed their exhaust which probably drowned it out with the louder exhaust note. The noise was described as a high pitch, electronic sounding whine that is difficult to localize but appears to be coming from the engine bay. I too frequently hear the noise but fortunately it doesn't bother me as much and has just become a part of the car for me. However, I'd love to hear what's causing it and have it changed if possible. From the original threads about this, G37 owners claim to hear it as well.