Jump to content

Catalytic Converter??

Recommended Posts

1 hour ago, Mcheil83 said:

I have a 2015 Sierra 2500hd 6.0L. I have a rattle in the rear past the 2 catalytic converters and before the muffler. I’m curious if it is a 3rd catalytic converter?? It’s the red circle in the pic.63246866-06A8-4A8B-A2AA-A0ED99780AF1.thumb.jpeg.ceeb33b5b4514abaeac153ed9884305a.jpeg




Yes.  2 primaries and one secondary make up the Y pipe.  

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.