Buzz after AAM Short Tail install

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...

__________________

Bonnie - Stage 2, Audio build coming this fall!
R.I.P. Abby 3/29/10 - 3/30/14

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.

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.

__________________

Bonnie - Stage 2, Audio build coming this fall!
R.I.P. Abby 3/29/10 - 3/30/14

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. 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

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?

__________________

Bonnie - Stage 2, Audio build coming this fall!
R.I.P. Abby 3/29/10 - 3/30/14

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

XwChriswX

From the Journal entry:

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.

__________________

Bonnie - Stage 2, Audio build coming this fall!
R.I.P. Abby 3/29/10 - 3/30/14