04stang523

Hey guys I have an 04 GT and almost every time I back up and give it a little gas I see smoke and smells like rotten eggs lol. It doesn't matter if it's a cold or hot start it still does it. Other than happening when backing up I never see smoke. Any help would be appreciated.

GrnT

So you notice it in reverse. Is it possible that everyone else notices it when they are behind you?

Skylar

The smell is coming from your catalytic converter due to too much sulfur passing through. You might need to replace your converter, but it may be due to another problem. Google "exhaust rotten egg smell" there's a lot of information about it.

http://www.examiner.com/article/why-...ke-rotten-eggs

04stang523

I should've mentioned that I have a LTs, Off road mid pipe and exhaust.. I've had other people drive or stand behind me and they don't notice it.

Glenn

How many miles do you have on it??

wheelman

Are sure it's from the tailpipes? How fast you backing up son? lol

04stang523

97k, I thought it could've been an O ring but it smokes out of both. and it's a manual so I give it some gas backing up lol no tire smoke in reverse.

Glenn

if it hasn't had reg oil changes it could have some weak rings which would make it do that.... But yea do more burn outs

El Coyote GT/CS

When I do that while backing up, I keep my mouth closed.