I was in the supermarket for about ten minutes and returning to the car I noticed what looked
like a bunch of grey hair sticking out of the right hand tailpipe. I didn’t want to touch it so I put on some gloves and started pulling it out. Well about 2.5ft of this gray hairy stuff came out looking like an old hippie’s pony tail. Can’t believe someone did that in 10mins in broad daylight so it got me thinking... is this the guts of the cat being blown out of the tailpipe? I was rear ended a couple of years ago and the shop said they replaced the muffler by that tailpipe. (Not sure if that’s a cat or just a silencer closest to the back)

 

My goodness. Everyone within earshot is laughing and speculating about what this could be. Any pictures?

 

I love the "old hippie’s pony tail" comparison! Muffler hair. It's a thing. When the fibrous insulating material used as a sound deadener starts to deteriorate, the stuff starts to come out through the tailpipe. Time to start shopping for a new muffler!

 

Hehe! LOL! Muffler hair! WTF!

If my cat had hair *****, I wouldn’t pull it out of his tail!

Would love to see pics, esp. of the inside of the rear muffler. Hope you got an angle grinder handy.

 

old hippie’s pony tail ? ? Hey, I resemble that remark !

sounds like the replacement muffler is full of cheap fiberglass,

Z

 

A lot of aftermarket mufflers, use / used fiberglass as a sound deadener. Maybe you all are to sophisticated, to know what a "Glass Pack" is. LOL! back in the 50's 60's and 70's. Glass Packs were the go to muffler this side of the pond. Straight through with fiberglass packing. Get them real hot, and run a garden hose up the pipe, and turn on the water. The cold water would hit the hot fiberglass, and cause it to harden, and crystallize. Then it would start breaking up, and blow out the tail pipe resulting in a louder, and louder muffler. Till it was like running straight pipes. Then came the 80's and the chambered muffler, or Turbo Muffler as it was called came into being, followed by the chambered "Flowmaster", delta wave mufflers. That sound like a 4 barrel with the air cleaner lid flipped over, and it's trying to suck the hood in. LOL! Just a little history on Mufflers for the fun of it. There are countless other styles as well.
The Hippie Hair won't hurt a thing as long as you like it louder.

Jack

 

Morotbikes still use fibreglass packing in exhausts. It only lasts a certain amount of time, so they are only riveted closed so that you can open them up and repack them - I did one my Aprilia a few weeks ago, and most of the original packing had gone when I opened it up.

 

So will this affect my OBDll code reset from p1000 to p1111 after my recent injector replacement? It seems to be progressing correctly so far, everything reset so far except the cat sensor which usually seems to be last but has always eventually complied. Just wondering if this shedding muffler will affect it?

 

Probably not, but as finicky and sensitive, as computers are nowadays. It could be a possibility. I'd run it till it sets a code, then worry about what to do. Most likely it won't set one, as the muffler is well downstream of the o2 sensor. So it shouldn't see the change.

Hope it helps.

Jack

 

You can check for codes without clearing them - and indeed that should be the normal thing to do. That includes checking for P1111. Even a cheap elm327 or the like should do it.