Loud noise when decelerating

TJSq · 06-22-2016, 01:55 PM

When I get up to 6k rpms and let off the gas and let the engine slow the car down there is a really distinct vibrating noise that sounds awful and idk if that's normal

MagmaRed370z · 06-22-2016, 01:58 PM

Quote:

Originally Posted by TJSq

When I get up to 6k rpms and let off the gas and let the engine slow the car down there is a really distinct vibrating noise that sounds awful and idk if that's normal

Is there a way you can take a video of it (safely)? You will get some people here that will want to hear the exact sound to be able to pinpoint what is wrong with it.

TJSq · 06-22-2016, 02:08 PM

Sorry it's actually at 5k and here https://youtu.be/GhUtxXsRe9c

Breadz · 06-22-2016, 03:11 PM

I think mine might be doing something similar but yours is much louder, will have to test driving it like you did in the video

TJSq · 06-22-2016, 03:46 PM

Quote:

Originally Posted by Breadz

I think mine might be doing something similar but yours is much louder, will have to test driving it like you did in the video

If you figure it out let me know my Nissan dealership sucks and wants $140 to diagnose it.

MagmaRed370z · 06-22-2016, 05:48 PM

Quote:

Originally Posted by TJSq

If you figure it out let me know my Nissan dealership sucks and wants $140 to diagnose it.

They always want 140 for anything.

TJSq · 06-22-2016, 06:10 PM

Quote:

Originally Posted by schellingr

They always want 140 for anything.

Which is stupid, anyone have an idea on what this sound is

barncobob · 06-22-2016, 06:51 PM

Im guessing U have modded the car, exhaust, headers, downpipes.

MagmaRed370z · 06-22-2016, 06:58 PM

What mods do you have? Any work on the tranny?

TJSq · 06-22-2016, 07:07 PM

Quote:

Originally Posted by schellingr

What mods do you have? Any work on the tranny?

Just tp and short tails

TJSq · 06-23-2016, 05:14 PM

Still need help

SouthArk370Z · 06-23-2016, 07:03 PM

You may need to find a mechanic-type person to take it for a test drive. Very hard to diagnose noises over the Internet unless they are very pronounced. If you buy/rent/borrow an OBD scanner, you can monitor AFRs and such and maybe get an idea what's going on.

TJSq · 06-23-2016, 09:58 PM

Quote:

Originally Posted by SouthArk370Z

You may need to find a mechanic-type person to take it for a test drive. Very hard to diagnose noises over the Internet unless you are very pronounced. If you buy/rent/borrow an OBD scanner, you can monitor AFRs and such and maybe get an idea what's going on.

My dad used to be a mechanic and he has an OBD, but he's out of town and he's the one who helps me do all the mechanical stuff with my car. I was just trying to see if it was something I should worry about.

fryzia23 · 06-26-2016, 11:44 AM

Sounds like it might be the thin aluminum heat shield thats right above short tails. Mine was making noise so I removed it. No problems. I would check that first

06-22-2016, 01:55 PM	#1 (permalink)
TJSq Base Member Join Date: Jun 2015 Location: Oklahoma Posts: 45 Drives: 11 370z Touring M/T Rep Power: 10	Loud noise when decelerating When I get up to 6k rpms and let off the gas and let the engine slow the car down there is a really distinct vibrating noise that sounds awful and idk if that's normal

06-22-2016, 03:11 PM	#4 (permalink)
Breadz Base Member Join Date: Jan 2015 Location: Clovis Cali Posts: 240 Drives: 12 370z sport 6mt GM Rep Power: 10	I think mine might be doing something similar but yours is much louder, will have to test driving it like you did in the video __________________ Fast Intentions Non res CF, CF Duckbill, Stillen G3, Fujimura Diffuser, Swift Springs, 180 Headlights, Forgestar F14Bronze

06-22-2016, 06:58 PM	#9 (permalink)
MagmaRed370z A True Z Fanatic Join Date: Jun 2014 Location: USA Posts: 1,468 Drives: 14' 370z Sport Magma Rep Power: 13	What mods do you have? Any work on the tranny? __________________ Sold: 2014 Magnetic Black Base. Current: 2014 Magma Red 370z Sport \| ARK Grip Exhaust \| 25mm HR Spacers \| GTR Button \| DRL Mod

06-23-2016, 07:03 PM	#12 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	You may need to find a mechanic-type person to take it for a test drive. Very hard to diagnose noises over the Internet unless they are very pronounced. If you buy/rent/borrow an OBD scanner, you can monitor AFRs and such and maybe get an idea what's going on. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma Last edited by SouthArk370Z; 06-24-2016 at 07:50 AM.

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06-22-2016, 02:08 PM	#3 (permalink)
TJSq Base Member Join Date: Jun 2015 Location: Oklahoma Posts: 45 Drives: 11 370z Touring M/T Rep Power: 10	Sorry it's actually at 5k and here https://youtu.be/GhUtxXsRe9c

06-22-2016, 06:51 PM	#8 (permalink)
barncobob A True Z Fanatic Join Date: Sep 2015 Location: hangtown, CA Posts: 1,164 Drives: 16 370Z auto Rep Power: 590	Im guessing U have modded the car, exhaust, headers, downpipes.

06-23-2016, 05:14 PM	#11 (permalink)
TJSq Base Member Join Date: Jun 2015 Location: Oklahoma Posts: 45 Drives: 11 370z Touring M/T Rep Power: 10	Still need help

06-26-2016, 11:44 AM	#14 (permalink)
fryzia23 Enthusiast Member Join Date: Dec 2010 Location: new jersey Posts: 452 Drives: 2011 MB 370Z NISMO Rep Power: 1246	Sounds like it might be the thin aluminum heat shield thats right above short tails. Mine was making noise so I removed it. No problems. I would check that first