Garbage bag melted to my exhaust

Canai

Diamond Member
Oct 4, 2006
8,016
1
0
So I was driving to my parent's house the other day, going down the main street of the little town they live in, when a black plastic garbage bag blew into the road. I had one melt onto the exhaust pipe of my last car, so I did my best to swerve and avoid it. No such luck. It stuck right to (what I'm guessing is) the catalytic converter.

I scraped off as much of it as I could with a putty knife and wire brush when I got to my parents, but it cooled off pretty quickly, even with the car still running, and I didn't get all of it off. The next day, I went out to my parent's again (I've been helping them regrade their lawn) and got every bit I could see off, but it still stinks like burning plastic whenever I drive it long enough to warm up.

Anybody have any tips or advice on getting it to stop smelling? There is still a little dark discoloration where the bag was stuck to the exhaust, but there aren't any more visible bits of plastic.

With my last car it wrapped all the way around the exhaust pipe and stank all summer :(
 

OS

Lifer
Oct 11, 1999
15,581
1
76

if you're intent on scraping it all off, you can try metalsand/paper.
 

BassBomb

Diamond Member
Nov 25, 2005
8,390
1
81
same thing happened to me, cept it was some sort of bag from a construction site....... now it sounds like electronics blown / sawdust

Its right under the headers pasted on. I haven't tried to get it off yet though
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,576
126
The quickest way to burn it off would be to let the car idle in park, I believe. I think that's when the cat gets hottest because no air is flowing over it to cool it.

You could get it really hot by holding the revs up in park, but that is bad for the cats as they can over heat.