Engine noise

mad_g37 · 01-25-2012, 11:03 AM

Notice this noise after driving for a while. Is it normal sound? I can't reproduce the noise when cold start, then rev to 3000 rpm a few times. The noise only happens after driving for a while.

http://www.youtube.com/watch?v=R7jEJ2-RFXo

SPOHN · 01-25-2012, 05:49 PM

Sound very normal to me. Just sounds like the valvetrain doing it's thing.

vividracing · 01-25-2012, 06:31 PM

It does sound a little bit louder than normal, but not anything to really worry about imo. Sound is so subjective on the internet. What oil are you running? A slightly heavier oil might quiet it down a little bit. The injectors make a little bit of noise too.

maro · 01-25-2012, 06:48 PM

thats how mine sound like too ,,i think its normal

mantella87 · 01-25-2012, 07:20 PM

Mine sounds like a garbage disposal after long periods of driving. Usually when it's warmer out and after about 1.5 hours of driving.

98intrigue · 01-25-2012, 07:35 PM

No one's is louder than mine.

1slow370 · 01-25-2012, 10:19 PM

^hahaha no seriously you only hear it after driving because the rpms are down low enough and it has solid valvetrain and loud injectors.

Jsolo · 01-25-2012, 10:53 PM

You guys aint heard nothing yet..

The sound of a Ducati Clutch - YouTube

http://www.youtube.com/watch?v=WqOr6...eature=related

Yes, that is a normal sound.

1slow370 · 01-25-2012, 11:26 PM

This shows you how loud a mechanical car can be at idle be happy the z's are as quiet as they are.

1slow370 · 01-25-2012, 11:27 PM

jsolo u should throw that in the oem clutch noise thread.

Jsolo · 01-25-2012, 11:32 PM

Got a link for said thread?

Edit... I think i found it.

roy'sz · 01-26-2012, 02:26 PM

sounds like injector to me...imho

mad_g37 · 01-27-2012, 12:37 PM

If it is the injector, should it be that loud? And why only hear one injector making the noise. Will take to the dealer next month. Thanks

mad_g37 · 01-27-2012, 12:42 PM

Quote:

Originally Posted by vividracing

It does sound a little bit louder than normal, but not anything to really worry about imo. Sound is so subjective on the internet. What oil are you running? A slightly heavier oil might quiet it down a little bit. The injectors make a little bit of noise too.

dealer told me it was mobil 1 syn, should be 5w 30

bigsix · 01-27-2012, 01:24 PM

fuel injection

01-25-2012, 11:03 AM	#1 (permalink)
mad_g37 Base Member Join Date: Jan 2012 Location: NY Posts: 4 Drives: g37 Rep Power: 13	Engine noise Notice this noise after driving for a while. Is it normal sound? I can't reproduce the noise when cold start, then rev to 3000 rpm a few times. The noise only happens after driving for a while. http://www.youtube.com/watch?v=R7jEJ2-RFXo Last edited by mad_g37; 01-25-2012 at 11:07 AM.

01-25-2012, 05:49 PM	#2 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 45 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	Sound very normal to me. Just sounds like the valvetrain doing it's thing. __________________

01-25-2012, 06:31 PM	#3 (permalink)
vividracing The370Z.com Sponsor Join Date: Jun 2009 Location: Gilbert, AZ Age: 37 Posts: 7,306 Drives: 350Z,370Z,GTR Rep Power: 38	It does sound a little bit louder than normal, but not anything to really worry about imo. Sound is so subjective on the internet. What oil are you running? A slightly heavier oil might quiet it down a little bit. The injectors make a little bit of noise too. __________________ Rocky @ Vivid ♦ 480.966.3040 x236 ♦ Rocky@vividracing.com Email, PM, or call me directly for aggressive The370Z.com member pricing!!! Last edited by vividracing; 01-25-2012 at 06:33 PM.

01-25-2012, 07:35 PM	#6 (permalink)
98intrigue A True Z Fanatic Join Date: Jul 2010 Location: Clearwater, FL Age: 38 Posts: 4,855 Drives: 2014 Viper Rep Power: 429	No one's is louder than mine. __________________ Ryan - 2014 Stryker Green Viper Gone - a few Vipers and a couple turbo VQs

01-25-2012, 10:19 PM	#7 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	^hahaha no seriously you only hear it after driving because the rpms are down low enough and it has solid valvetrain and loud injectors. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

01-25-2012, 06:48 PM	#4 (permalink)
maro Enthusiast Member Join Date: May 2010 Location: Az Posts: 414 Drives: PW Maro Z Rep Power: 14	thats how mine sound like too ,,i think its normal

01-25-2012, 07:20 PM	#5 (permalink)
mantella87 Track Member Join Date: Jun 2011 Location: Sacramento, CA Posts: 590 Drives: 2011 Z34 MT Rep Power: 14	Mine sounds like a garbage disposal after long periods of driving. Usually when it's warmer out and after about 1.5 hours of driving.

01-25-2012, 10:53 PM	#8 (permalink)
Jsolo Track Member Join Date: Dec 2011 Location: chicago Posts: 783 Drives: '12 G37 6MT Rep Power: 14	You guys aint heard nothing yet.. The sound of a Ducati Clutch - YouTube http://www.youtube.com/watch?v=WqOr6...eature=related Yes, that is a normal sound.

01-25-2012, 11:26 PM	#9 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	This shows you how loud a mechanical car can be at idle be happy the z's are as quiet as they are. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

01-25-2012, 11:27 PM	#10 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	jsolo u should throw that in the oem clutch noise thread. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

01-25-2012, 11:32 PM	#11 (permalink)
Jsolo Track Member Join Date: Dec 2011 Location: chicago Posts: 783 Drives: '12 G37 6MT Rep Power: 14	Got a link for said thread? Edit... I think i found it. Last edited by Jsolo; 01-25-2012 at 11:38 PM.

01-26-2012, 02:26 PM	#12 (permalink)
roy'sz A True Z Fanatic Join Date: Aug 2011 Location: palmdale, ca Posts: 1,299 Drives: 2010 nissan 370z Rep Power: 15	sounds like injector to me...imho

01-27-2012, 12:37 PM	#13 (permalink)
mad_g37 Base Member Join Date: Jan 2012 Location: NY Posts: 4 Drives: g37 Rep Power: 13	If it is the injector, should it be that loud? And why only hear one injector making the noise. Will take to the dealer next month. Thanks

01-27-2012, 01:24 PM	#15 (permalink)
bigsix A True Z Fanatic Join Date: Sep 2011 Location: Thailand Posts: 2,227 Drives: Honda City/Mazda 2 Rep Power: 18	fuel injection

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