996 muffler rattle
#1
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996 3004 Rattle in muffler. On my 996 the left muffler is sometimes rattling and I was wondering if it would be a good idea to open it up and fix the rattle? Has anyone done it and can it be done?
#2
Three Wheelin'
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The baffles go out - mine rattles a lot - and sure it could be fixed or mitigated if they are opened up. I think it's just a matter of welding the baffle in place, or doing something to tighten it down.
Do a search for a thread about gutting the mufflers, it has some pics that will help as well as a google image search for what's inside.
Do a search for a thread about gutting the mufflers, it has some pics that will help as well as a google image search for what's inside.
#4
Race Director
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It can be done - another RL member had one of my rattly Tubi mufflers opened up to fix a loose baffle. However, a rattle from that area is often not the muffler - a loose heat shield rattling against the muffler seem to be the most common culprit.
#6
Rennlist Member
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+1 - that's what my rattle turned out to be. 5 minutes of massaging the heat shield and all is good.
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#12
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After much thought I decided to remove the left muffler cut it open and see where the rattle came from. And sure enough the inside baffle had come loose, just a little bit but enough to make a loud irritating noise. I welded the parts together inside the muffler then welded back the double layer outside cover that I had cut away with angle grinder. Now it sounds just like a new again we shall see how long it will last.
#13
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After much thought I decided to remove the left muffler cut it open and see where the rattle came from. And sure enough the inside baffle had come loose, just a little bit but enough to make a loud irritating noise. I welded the parts together inside the muffler then welded back the double layer outside cover that I had cut away with angle grinder. Now it sounds just like a new again we shall see how long it will last.
![](https://lh3.googleusercontent.com/-1P1C6p49tso/VacKiyVxocI/AAAAAAAAE5g/rjUvmEvIHgwGzSqXrQlkXMlJ5RusLRPjQCCo/s640/2015_%2B7_15_20_36.jpg)