Buzz after AAM Short Tail install

Schsplayer00 · 01-17-2013, 08:59 PM

Nice keep us posted. I want this fixed it is driving me nuts!!!

XwChriswX · 01-17-2013, 09:09 PM

Quote:

Originally Posted by Schsplayer00

Nice keep us posted. I want this fixed it is driving me nuts!!!

I KNOW!!! OMGWTFBBQ!!!

RonZwanson · 01-18-2013, 06:58 AM

I'm getting new rear tires installed tomorrow, so I'll fool around with some of this stuff and let you guys know if I miraculously solve this while I'm driving to the shop.

Thanks again!

scope22 · 01-18-2013, 07:02 AM

Quote:

Originally Posted by RonZwanson

So I installed some AAM Shorties just about two weeks ago now. I'm not sold on them yet, for a couple reasons. First of all, none of the videos on YouTube come close to accurately depicting how LOUD these things are. They don't sound bad, just LOUD. I don't know if I can live with it as much as I drive the thing.

My primary gripe is that there's a buzz/plasticy-sounding rattle coming from somewhere around the hatch. I'm wondering if anyone has experienced the same thing after installing new exhaust, particularly the Short Tails. I plan on doing some exploratory surgery whenever it stops being rainy and frigid, but that may not be for a couple more weeks. I noticed the tips of the exhaust basically sit right against the cutout in the bumper. And since the buzz sound is typically when I accelerate with some gusto, I guess that could be it, but based on the sound, I think it may be something in the hatch door.

Anybody have any feedback, or likely places I could search, before I go nuts tearing down my car? Anyone had a similar issue? Any feedback would be appreciated. I did search around, but didn't find anything specific to this. If anyone knows of a helpful thread I'll take that too.

buzzing noise/rattle has been explored to death on this forum if you do some quick search there are a few DYI's to fix it, there are 2 places where it could be comming from, one is the latch for the hatch and one is behind the headliner, in both cases it sounds like it comming from the back because the sound travels down the windshield (that was my case)

scope22 · 01-18-2013, 07:05 AM

Quote:

Originally Posted by XwChriswX

I don't have the AAM Short Tails, but I believe I have the same Rattle IN the hatch as the OP.

I've torn apart my hatch interior multiple times as well trying to figure out what it is. So far I have narrowed it down to the 3rd brake light. It has 2 posts that stick out to align it when you're putting it into the hatch. These posts go through small alignment holes inside the hatch. If it isn't centered (which they never are) they will vibrate as the exhaust goes through the 2-3k resonance band. Major aggravation ensues.

So far I have installed rubber grommets in the holes to center the posts and prevent them from moving. So far this has prevented the "metallic" sound, but the posts still vibrate. So on to step 2. I have purchased some dense foam that I will try to stick on o the hatch interior trim, and when reinstalling, should brace the posts and prevent their movement, or at least muffle it to when you can't hear them anymore.

I'll be doing this over this weekend so I'll make sure I take video and pictures to help the rest out if it works...

its probably behind the headliner, next time you're dirving and you hear the noise put you head in the center of the headliner in the back and push and see if it stops, if it does than you found your source of rattle.

XwChriswX · 01-18-2013, 12:39 PM

Quote:

Originally Posted by scope22

buzzing noise/rattle has been explored to death on this forum if you do some quick search there are a few DYI's to fix it, there are 2 places where it could be comming from, one is the latch for the hatch and one is behind the headliner, in both cases it sounds like it comming from the back because the sound travels down the windshield (that was my case)

Explain this? Not really able to visualize anything based on that?

There is an electrical plug in the hatch that plugs in to what I guess is the 3rd brake light that is an extremely loose fitting.. That's one of the places I'm going to investigate today. But other then that, I'm not sure.

Quote:

Originally Posted by scope22

its probably behind the headliner, next time you're dirving and you hear the noise put you head in the center of the headliner in the back and push and see if it stops, if it does than you found your source of rattle.

I know it isn't my headliner as I've never heard anything from that part of the car.

FlawlessZ · 01-18-2013, 12:46 PM

Its the heat shield, I had too many fights with mine, so I tore it to pieces.

scope22 · 01-18-2013, 12:56 PM

Quote:

Originally Posted by XwChriswX

Explain this? Not really able to visualize anything based on that?

There is an electrical plug in the hatch that plugs in to what I guess is the 3rd brake light that is an extremely loose fitting.. That's one of the places I'm going to investigate today. But other then that, I'm not sure.

I know it isn't my headliner as I've never heard anything from that part of the car.

I had a rattle with my non-res FI, i was sure that it was commign from the hatch but after insulating everything it the rattle was still there...eventually i found the rattle behind the headliner, the sound would travel down the windshield the bounce back so it sounded like it was the hatch but it wasn't. The only reason i mentioned latch is because i remember reading about it on some thread, some peeps moved the lock down a bit so that hatch closes tighter...

I dont know what could be rattling in the hatch because that is not where my problem was so i didn't have ot fix anything but others did, do some seraches and i'm sure you'll find all the threads on hatch rattling

XwChriswX · 01-18-2013, 12:57 PM

Quote:

Originally Posted by scope22

I had a rattle with my non-res FI, i was sure that it was commign from the hatch but after insulating everything it the rattle was still there...eventually i found the rattle behind the headliner, the sound would travel down the windshield the bounce back so it sounded like it was the hatch but it wasn't.

I dont know what could be rattling in the hatch because that is not where my problem was so i didn't have ot fix anything but others did, do some seraches and i'm sure you'll find all the threads on hatch rattling

Do you know what/where it is in the headliner, I'll check there today as well, just not sure what I'm looking for?

scope22 · 01-18-2013, 01:02 PM

Quote:

Originally Posted by XwChriswX

Do you know what/where it is in the headliner, I'll check there today as well, just not sure what I'm looking for?

all you have to do is press on the hump part of the headliner hear the rear window, im my case there are plastic push pins that are holding the headliner up, i had to put some tape on them because they were rattling against the metal roof. See the link, towards the bottom there is a pic of the plastic push pin that has a suqare base that is against the metal roof, that will rattle and drive you nuts.

Buzzing Noise from Rear Area

XwChriswX · 01-18-2013, 01:34 PM

Quote:

Originally Posted by scope22

all you have to do is press on the hump part of the headliner hear the rear window, im my case there are plastic push pins that are holding the headliner up, i had to put some tape on them because they were rattling against the metal roof. See the link, towards the bottom there is a pic of the plastic push pin that has a suqare base that is against the metal roof, that will rattle and drive you nuts.

Buzzing Noise from Rear Area

From the Journal entry:

Quote:

UPDATE: I'm 99% sure that the wire I found in the headlined goes to the XM antenna on the roof. So, if you don't have the Touring package, my rattle is not your rattle and this post won't help you. Don't want to waste anyone's time.

I don't have a Touring, so I don't think my problem is the wire in the headliner.

But I do think I need to invest in some Dynamat.

USMCASA · 01-18-2013, 02:39 PM

^i don't have a touring, i have a base w/sport pkg, and i DO have that buzzing sound coming from the headliner where it meets with the hatch.

XwChriswX · 01-18-2013, 02:49 PM

Quote:

Originally Posted by USMCASA

^i don't have a touring, i have a base w/sport pkg, and i DO have that buzzing sound coming from the headliner where it meets with the hatch.

I just went around trying to do something else, and it does Not sound like it's coming from the headliner area. I even pushed on it to see if the clips were loose and it's pretty snug up there...

scope22 · 01-18-2013, 03:59 PM

Quote:

Originally Posted by XwChriswX

I just went around trying to do something else, and it does Not sound like it's coming from the headliner area. I even pushed on it to see if the clips were loose and it's pretty snug up there...

you have to do this while you're driving and you're hearing the buz, just felling it around itsn't gona do anything.

XwChriswX · 01-18-2013, 04:01 PM

Quote:

Originally Posted by scope22

you have to do this while you're driving and you're hearing the buz, just felling it around itsn't gona do anything.

I was, that's what I meant.

01-17-2013, 08:59 PM	#16 (permalink)
Schsplayer00 Base Member Join Date: Oct 2012 Location: Myrtle beach, SC Posts: 172 Drives: 09-370z-White-6speed Rep Power: 14	Nice keep us posted. I want this fixed it is driving me nuts!!! __________________ 09 White/black Touring/Sport<HKS true dual exhaust burnt tips, Stillen G3 intakes, Berk test pipes, Motordyne intake manifold, Motordyne thermostat, Stillen under pulley, Uprev tune.

01-18-2013, 06:58 AM	#18 (permalink)
RonZwanson Base Member Join Date: Sep 2011 Location: Lancaster, PA Posts: 130 Drives: 2009 Black MT Sport Rep Power: 15	I'm getting new rear tires installed tomorrow, so I'll fool around with some of this stuff and let you guys know if I miraculously solve this while I'm driving to the shop. Thanks again! __________________ It's a racing hen!

01-18-2013, 12:46 PM	#22 (permalink)
FlawlessZ Track Member Join Date: Jun 2012 Location: SoCal 818 Posts: 595 Drives: 12 PW 6MT Rep Power: 15	Its the heat shield, I had too many fights with mine, so I tore it to pieces. __________________ 2012 PW - 6MT \| Meisterschaft CBE w/ ECV \| EVO-R Front Lip \| Enkei SP3-RS JDM Wheels \| Sticky Hankook RS-3's \| Megan Racing Springs \| Hot Shift Knob \| JDM Brake/Fog Light

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01-18-2013, 02:39 PM	#27 (permalink)
USMCASA A True Z Fanatic Join Date: Nov 2009 Location: NC Posts: 1,152 Drives: 09 370z CY M6 Rep Power: 19	^i don't have a touring, i have a base w/sport pkg, and i DO have that buzzing sound coming from the headliner where it meets with the hatch.