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Old Jun-20-10, 08:06 PM   #1
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Default Fiberglass packing coming out of tailpipe?

Returning from a trip, I found fiberglass packing coming out of the exhaust pipe. All stock, haven't seen any stock mufflers lately that had any packing in them at all. Anyone else have this happen? Kinda wondering if it may be enough to obstruct flow.
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Old Jun-20-10, 08:08 PM   #2
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Its coming from the resonator which is right before the tip
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Old Jun-20-10, 08:09 PM   #3
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Common problem from as many threads I have seen concerning this.
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Old Jun-20-10, 09:42 PM   #4
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Yep, pretty common thing you hear about on this site. My truck was blowing the packing out quite a bit last year. It kind of looks like someone stuffed a silverish colored wig into the exhaust tip..lol...
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Old Jun-21-10, 04:43 AM   #5
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Scooter K had new exhaust put on his truck and blew all the installation out in a couple weeks. The shop installed a different muffler for him and warrantied it.
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Old Jun-21-10, 07:12 PM   #6
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Yeah, a silver platinum wig! Got another 15 ft today. Not so worried about it if others have had it and its just from the resonator. Wondered if something came loose inside and let the muffling material out. Didn't want any metal parts floating around inside. Thanks for the replies.
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Old Jul-14-10, 06:12 AM   #7
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I had the same thing happen to me this morning. I got to work and saw what I thought was hair hanging out of the tailpipe. At first I thought an animal crawled in there to die then I figured out it was the fiberglass packing. Glad to hear it's common and nothing to worry about.
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Old Jul-14-10, 06:15 AM   #8
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Quote:
Originally Posted by lou16 View Post
Glad to hear it's common and nothing to worry about.
Except your truck will probably keep getting louder and louder.
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Old Jul-14-10, 07:45 PM   #9
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The best part is looking like a dumbass when its trailing behind you on the freeway and people are laughing at it. Been there!!! It does sound better though.
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Old Jul-20-10, 01:39 PM   #10
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have the same issue are there any performance gains to be had by deleting the resonator , or when all the fiberglass has come out
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Old Jul-20-10, 03:30 PM   #11
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just remove the resonator and that will probably take 50 lbs off your truck
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Old Aug-03-10, 11:18 AM   #12
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mine just did this yesterday, thought it was from the Magnaflow i put on last week... GLAD it's not
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Old Nov-09-10, 12:03 AM   #13
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yeah mine is doing this now my check engine light is on onstar said something is wring with the throttle control and exhaust something is anyone else check engine light on and do i need to take it to the dealer because of the fiber glass coming out of it????????????
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Old Nov-09-10, 01:08 AM   #14
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This is the best answer for this thread. It is your resonator that has a problem so you are seeing some fiber glass coming out of your tail pipe. We also experience that one last month.

Last edited by andreasue; Nov-09-10 at 04:44 PM.
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Old Nov-09-10, 05:54 AM   #15
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My fiberglass came out just after i removed the resonator.(fixed!)

Last edited by RacerX78; Nov-10-10 at 11:56 AM.
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Old Nov-09-10, 02:54 PM   #16
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Mine blew out last weekend and wrapped itself around the rear wiper....when I got done tugging it out of the pipe it looked like Id stolen an old ladys wig or something.
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Old Nov-09-10, 04:41 PM   #17
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Quote:
Originally Posted by RacerX78 View Post
My fiberglass came out just after i removed the muffler.
If you removed your tail pipe that will be very noisy. Maybe you started your engine without any muffler installed?

Last edited by andreasue; Nov-11-10 at 01:27 AM.
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Old Nov-09-10, 05:57 PM   #18
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i thought I ran over a hooker first time I saw it flopping in my rear window
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Old Nov-10-10, 11:52 AM   #19
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Quote:
Originally Posted by andreasue View Post
If you removed your tail pipe that will be very noisy. Maybe you started your engine without any muffler installed?
Err on my part. I delete the resonator and after that i blew it out.
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