Exhaust making interior shake. Help! - Mustang Evolution

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Old 10-15-2012, 10:17 PM   #1
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Exhaust making interior shake. Help!

The vibration from my exhaust it making sounds in my car towards the back seat/window. Anyone else have this problem? It's sounds like plastic vibrating or something.

---------- Post added at 10:17 PM ---------- Previous post was at 10:15 PM ----------

Shake* lol
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Old 10-15-2012, 10:24 PM   #2
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Quote:
Originally Posted by Mustang32Bill
The vibration from my exhaust it making sounds in my car towards the back seat/window. Anyone else have this problem? It's sounds like plastic vibrating or something.

---------- Post added at 10:17 PM ---------- Previous post was at 10:15 PM ----------

Shake* lol
I get the same with my S Type Borla axleback... I figured it was normal
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Old 10-15-2012, 10:35 PM   #3
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I have same problem it's starts around 2k rpm and is gone around 3k

But this is my fourth axle back all of witch did the same thing...

Sounds horrible... I'm embarrassed of my car because of this problem... hopefully mid mounting them will fix the issue
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Old 10-15-2012, 10:39 PM   #4
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Will I'm running loudmouth lol so I know I'm going to get some noise but it sounds terrible and I can't tell what it is. I might just sit back there and make my girlfriend drive it to see.
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Old 10-15-2012, 10:42 PM   #5
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Like noise other then drone?
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Old 10-15-2012, 10:45 PM   #6
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Quote:
Originally Posted by asmith2109
Like noise other then drone?
Yeah.. It sounds like plastic shaking and hitting something
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Old 10-15-2012, 10:52 PM   #7
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I didn't even install my catless x yet lol
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Old 10-15-2012, 10:57 PM   #8
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Have yu checked yur hangers?
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Old 10-15-2012, 11:05 PM   #9
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Quote:
Originally Posted by asmith2109
Have yu checked yur hangers?
It's coming from inside the car. The exhaust is tight no movement at all.
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Old 10-16-2012, 10:41 AM   #10
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Quote:
Originally Posted by Mustang32Bill

It's coming from inside the car. The exhaust is tight no movement at all.
I'm not sure then...
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Old 10-16-2012, 07:10 PM   #11
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Yea it definitely comes with any kind of exhaust other than stock. The sound comes directly from the trunk. pull your back seats down and drive around bit. You'll see how loud it really is. The only thing that I think will work is to install some sound dampening under the spare tire area. I'm gonna be doing it this weekend. It should make rattle go away and keep a lot of road noise out.
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Old 10-16-2012, 07:17 PM   #12
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I get it too... I've got Roush Axel Back... I have a vert so I thought it was the top hardware on the inside behind the plastic rear panels...
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Old 10-16-2012, 07:23 PM   #13
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It sounds like the rattle I was experiencing....for me it was a hanger and I checked three times and everything seemed tight...someone from the forum posted this and I did exactly that and it fixed the rattle...


It's most likely one of the exhaust hangers from your after market axle backs, I had the same problem and so have dozens of others. One of the front hangers is vibrating against the metal bracket that houses the rubber bushing that your hanger slides into. Just take a pair of vice grips or channel locks and bend the hanger back a little nearest the 90 degree angel bend toward the front of the car. That should take care of it.
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Old 10-17-2012, 12:42 AM   #14
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I thought it was just me! It happens around 3k. It sounds like its coming from underneath the rear passenger seat!
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Old 10-17-2012, 01:08 AM   #15
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I had a rattle that was caused by the exhaust coming over the axle that had been miss mounted. The rattle was the exhaust clanging against the metal clamp to the fuel filler neck. Fixed it by losening the clamp forcing the exhaust higher and then tighten the clamp. Problem fixed for me.
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Old 10-17-2012, 08:54 AM   #16
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Quote:
Originally Posted by Mustang32Bill
The vibration from my exhaust it making sounds in my car towards the back seat/window. Anyone else have this problem? It's sounds like plastic vibrating or something.

---------- Post added at 10:17 PM ---------- Previous post was at 10:15 PM ----------

Shake* lol
Do you live in an area where it gets cold? I ask because mine didn't start to make a noise until the temp dropped below 50. Than when I crank the heat for a while the vibration goes away. That's how I figured out that the noise was coming the interior. I run a off road x pipe with roush axel backs so i wasn't surprised when **** started to vibrate with the temp change.
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Old 10-17-2012, 01:46 PM   #17
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After awhile it will stop but usually at 3k rattle
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Old 10-17-2012, 02:13 PM   #18
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Quote:
Originally Posted by Mustang32Bill View Post
After awhile it will stop but usually at 3k rattle
That is how mine was too....I had checked the exhause a couple of times and everything seemed tight but it was a hanger.
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Gripping the wheel, his knuckles went white with desire! The wheels of his Mustang exploding on the highway like a slug from a .45. True death: 400 horsepower of maximum performance piercing the night...This is Black Sunshine-White Zombie
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Old 10-17-2012, 03:03 PM   #19
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Check your rubber isolators.
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