2005 - 2014 MustangsDiscussions on the latest S197 model Mustangs from Ford.
Sponsored by Latemodel Restoration
Welcome to Mustang Forums!
Welcome to Mustang Forums.
You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
You haven't thought about fouled O2 sensors. Sensors that are carbonized from running rich can cause false readings to be given to the PCM. Over time this will saturate the Cats.
you're right, i hadn't thought about that yet. is there a way, that you know of, to tell if they are bad?
Originally Posted by sonicmetalicS197
I noticed an exhaust leak right under the cabin, where my mufflers are, so I tightened up the clips and that seemed to help alot, cut down on the smell prolly 80% but I've still smelled it like once or twice since then. So that might help, smoke your pipes just to b sure, also check your cai/airbox for leaks ... I think I need to sea foam
i haven't been able to check all exhaust connections yet, but that will probably be my next 'check'. funny thing, though, i actually just checked my cai a couple of days ago for leaks... no problems, though
also, on a side note/question... i know when you seafoam you need to suck it through a/the vacuum hose, but i've never been sure which hose is the right one (so a pic or something would be appreciated )
thanks for all the suggestions so far, too
__________________ ...i take the internet seriously... BAZINGA!!
I wouldnt read too much into it. I gaurantee your cats are still fine. It just smells, alot of people have noticed it too. Im not sure how High flow cats will make it smell lol. I have an o/r prochamber and honestly its not all that loud. It is very tolerable.
This forum is owned and operated by Internet Brands, Inc., a Delaware
corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford
Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor