Anyway ideas to fix muffler rattle - Mustang Evolution

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Old 01-19-2012, 12:14 PM   #1
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Anyway ideas to fix muffler rattle

Don't want this to turn into a exhaust battle.. So I will call my exhaust X, (I love it by the way, the sound is prefect for what I want!)

But, I hear a rattle/noise/vibration every now and then from them. Any "fix" ideas to help that?

Again.. I don't want this to be a debate. just ways/ideas to fix it
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Old 01-19-2012, 12:25 PM   #2
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If your pipes are not welded together the. Check and see if your clamps are tight!..
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Old 01-19-2012, 12:25 PM   #3
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Re: Anyway ideas to fix muffler rattle

There is no simple answer to the question. The rattle is likely caused by some portion of the exhaust system, whether it be tubing, hangers, clamps or whatever rubbing against the car/suspension somewhere. It is not likely that something is rattling inside the exhaust...

The first step is to locate where the rattle is coming from, i.e. figure out where something is contacting the body. For instance, when my car warms up, I have a terrible rattle at the rear of the car because the rear driver side hanger just inside the bumper is hitting the horizontal frame rail. It is doing so because the clamp that attaches the cat-back to the cross-over pipe doesn't tighten completely, so the cat-back tube slides back about a 1/4" until the hanger hits the rear cross-member inside the bumper.

In my case, the fix will be to replace the clamp so that I can get a snug fit & remove the slack from the left tube. That being said, your exhaust itself is not likely to be the problem; as in my case, it's likely going to be something causing the exhaust to hit the body & that causes the vibration which results in your rattle...
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Old 01-19-2012, 12:45 PM   #4
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If its all stock exhaust besides the mufflers just recheck everything from the where the mufflers connect to the tail pipe, did it always rattle or just start? And muffler X is shlt, muffler Z is the only thing I but on my car
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Old 01-19-2012, 12:46 PM   #5
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I have same issue... 2k rpm to 3500 rpm... Been to several shops nobody can find these source of the problem.... I've been told the axel back I have is known for having this issue... Very annoying
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Old 01-19-2012, 01:12 PM   #6
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When I had FlowMasters on my other car it would rattle from about 2,000-3000 rpms!... Was told that was common for that!..
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Old 01-19-2012, 01:30 PM   #7
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I did not bring up brand name out of respect for the guy w the original post... But yes that is what I have
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Old 01-19-2012, 01:31 PM   #8
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Re: Anyway ideas to fix muffler rattle

My rattle in my 06 was a exhaust hanger
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Old 01-19-2012, 01:45 PM   #9
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Quote:
Originally Posted by Silversky545
I did not bring up brand name out of respect for the guy w the original post... But yes that is what I have
Only reason I mentioned it was just for some "food for thought!.."
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Old 01-19-2012, 01:52 PM   #10
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Mine rattles too. The only time mine didn't was when I had just the roush extreme cat back(mid muffler/resonator). With any kind of axelback including the stock ford ones I get the rattle or vibration. You could check into a mid muffler system or just look under the car real good and see where it's rubbing and make some room if possible.
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Old 01-19-2012, 02:31 PM   #11
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Re: Anyway ideas to fix muffler rattle

thanks for the response guys! to explain more..

I have after market axle-backs, thats it, everything else is stock.

it is "for sure" coming from the mufflers hitting the frame..

is there a piece of rubber or something of that nature I can fit in there?
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Old 01-19-2012, 04:17 PM   #12
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I have that same problem man mine rattles when I first start it up but when I get going and it gets warmed up it quiet down but like when I fist turn it on Goethe day it's bad
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Old 01-19-2012, 07:05 PM   #13
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Mines the same as far as rattles at first start then goes away!

---------- Post added at 06:04 PM ---------- Previous post was at 05:56 PM ----------

The only thing I can think that may help would be to listen from the h pipe back and try to maneuver the pipes so you don't have clearance issues.... The fun part would come if it's hitting suspension pieces.... If that's the case then you have to do it with the car on the ground so the suspension is under load and it's almost impossible to get under the car unless you have access to a walk user tunnel like they use for oil changes.

---------- Post added at 06:05 PM ---------- Previous post was at 06:04 PM ----------

That's loosen not listen.... But you can listen too, lol
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Old 01-19-2012, 08:05 PM   #14
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Quote:
Originally Posted by Dion11197
Mines the same as far as rattles at first start then goes away!

---------- Post added at 06:04 PM ---------- Previous post was at 05:56 PM ----------

The only thing I can think that may help would be to listen from the h pipe back and try to maneuver the pipes so you don't have clearance issues.... The fun part would come if it's hitting suspension pieces.... If that's the case then you have to do it with the car on the ground so the suspension is under load and it's almost impossible to get under the car unless you have access to a walk user tunnel like they use for oil changes.

---------- Post added at 06:05 PM ---------- Previous post was at 06:04 PM ----------

That's loosen not listen.... But you can listen too, lol
Can still possibly use ramps!.. So that way the suspension is still under load!..

It just might be a tight squeeze though!..
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Old 01-19-2012, 09:30 PM   #15
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I've done it.... Still tight but doable! Just getting to the h pipe will suck!

---------- Post added at 08:30 PM ---------- Previous post was at 08:29 PM ----------

I only did it for the axel backs though.
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Old 01-19-2012, 09:51 PM   #16
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Quote:
Originally Posted by Dion11197
I've done it.... Still tight but doable! Just getting to the h pipe will suck!

---------- Post added at 08:30 PM ---------- Previous post was at 08:29 PM ----------

I only did it for the axel backs though.
Lol. Been there done that, got the T-shirt to prove it too!!... Lol.
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Old 01-19-2012, 09:53 PM   #17
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Is all of the rubber intact inside the hangers?
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Old 01-19-2012, 10:18 PM   #18
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Quote:
Originally Posted by Aggiesrok
Is all of the rubber intact inside the hangers?
Yep!
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Old 01-19-2012, 11:31 PM   #19
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Have tried loosening the connection at pipe clamp a little, then twist the muffler pipe a up or down in order to get more clearance? There is a fair amount of pipe overlap to play with. I've flowmasters and they don't rattle.
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Old 01-19-2012, 11:45 PM   #20
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Quote:
Originally Posted by Aggiesrok
Have tried loosening the connection at pipe clamp a little, then twist the muffler pipe a up or down in order to get more clearance? There is a fair amount of pipe overlap to play with. I've flowmasters and they don't rattle.
I've gone through two sets of Flowmasters and they both rattled!..
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Old 01-20-2012, 12:14 PM   #21
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Re: Anyway ideas to fix muffler rattle

Quote:
Originally Posted by Eturner View Post
I've gone through two sets of Flowmasters and they both rattled!..
flowmaster mufflers produce there sound by resonating, which n turns makes tons of vibrations, and if there is something loose anywhere in the car, even 2 pennies in the cup holder your going to hear them
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Old 01-20-2012, 01:30 PM   #22
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Quote:
Originally Posted by BaSohol

flowmaster mufflers produce there sound by resonating, which n turns makes tons of vibrations, and if there is something loose anywhere in the car, even 2 pennies in the cup holder your going to hear them
Funny thing is that they didn't start to rattle until after about a year!.. And the same with they second set!.. It wasn't the pennies in the cup holders!.. It was the mufflers them selves!...
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Old 01-20-2012, 02:37 PM   #23
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Quote:
Originally Posted by BaSohol

flowmaster mufflers produce there sound by resonating, which n turns makes tons of vibrations, and if there is something loose anywhere in the car, even 2 pennies in the cup holder your going to hear them
Lmao! With mine it's the keys in the cup holder, loose change, my rearview mirror.... Sets off the neighbors car alarm and apparently rattles near by windows!
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Old 01-21-2012, 10:05 AM   #24
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Sounds like something inside the muffler is breaking loose. Especially if it's after a year or so. Mine are only 5 months old, so we'll see.
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Old 01-21-2012, 10:32 AM   #25
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Quote:
Originally Posted by Aggiesrok
Sounds like something inside the muffler is breaking loose. Especially if it's after a year or so. Mine are only 5 months old, so we'll see.
That exactly what the shop told me!.. Both times!.. Lol
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Old 01-21-2012, 10:42 AM   #26
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I have an '06 with H exhaust and experienced a rattle with mine as well. I took it in to the shop and they told me there was a service bulletin out for it and fixed it for free. This website lists all service bulletins for most cars:

http://www-odi.nhtsa.dot.gov/tsbs/

Hope that helps.
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Old 01-21-2012, 11:58 PM   #27
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I took my mufflers off of my 06 and had the exhaust dump after the axle. It sounded like an ol' school 5.0
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Old 01-22-2012, 12:33 AM   #28
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Quote:
Originally Posted by Gibby
I took my mufflers off of my 06 and had the exhaust dump after the axle. It sounded like an ol' school 5.0
Did that for a week then got pipes welded on for 120 bucks, sounds great had them use the old clamps so I can still change them
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Old 01-22-2012, 12:49 AM   #29
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Post an exhaust clip!!!
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Old 01-22-2012, 12:59 AM   #30
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Quote:
Originally Posted by Gibby
Post an exhaust clip!!!
Ok tomorrow morning
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Old 01-22-2012, 02:01 AM   #31
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I had a rattle in my flowmaster exhaust that became sevear last month, turned out someting came loose inside and I had to replace it.
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Old 01-22-2012, 11:39 AM   #32
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Here's a video of the no mufflers from inside with the windows up and 1/2 throttle

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Old 01-22-2012, 02:31 PM   #33
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Has anyone had this problem with the factory exhaust? Mine is all stock and I have a rattle in the exhaust between 2k-3,500 rpm, actually sounds like it's inside the exhaust about middle of the car, I checked under the car and nothing feels loose, just wondering if they would fix it under warranty?
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Old 01-22-2012, 06:01 PM   #34
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I think I'm going to just delete the mufflers and run 4" in diameter echo tips that are about a foot long... I hate the way muffler deletes sound but it's a cheap set up till I can put some mid mufflers on...
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Old 01-22-2012, 07:29 PM   #35
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Could just go for cheepo glasspacks for now. Summit racing as them for $20 each. Just an idea.
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