Cats

[Eastcoast SHO]

when would i know when the cats go bad, what signs to look for, im thinking about getting a high flow y-pipe w/cats and new o2 sensors, but kinda tight with money right now so when i do get extra money i will be investing in that, but for now i want to make sure my cats are still good, thanks

 

[SASHO91]

Get under car...
Bang on cats...
if they make any noise, I'd stop driving the car.

But you have to remember, even if they don't make any sound, they could still be on there way out. They just haven't came apart yet.

 

[St Louis SHO]

Pretty much figure if they are above 100k it doesn't hurt to replace them. But That and if you fail emissions like I did today........

 

[Eastcoast SHO]

im not sure how many miles are on them, but i just passed inspection in feb, but then again it was only saftey not emisions,it passed last years emissions..........what kind of noise should i be looking for? like rattling like something is inside or is it a different sound?

 

[St Louis SHO]

It will rattle inside if it is broken.

 

[shovermont]

yea chunks of that honeycomb stuff might be floating around. my friends rx-7 had a cat for a while and figured out it was totally clogged when it was bright red and made the whole exhaust ghost white from heat i think.

It will rattle inside if it is broken.

good stuff right there

 

[WILL SHO U]

Dumb question...

Where are the cats? Anyone have a pic?

 

[Eastcoast SHO]

they are right behind the tranny one is a little further up and the other is below just follow the exaust , i believe they are between the y-pipe and resinator(someone correct me if im wrong)

 

[shovermont]

http://www.shobrosgarage.com/images/Drivetrain.jpg

its small but those two pipes that go into a big metal like boxes, well those are the cats

 

[ShadetreeSHOguy]

MEOW

 

[St Louis SHO]

WTF? Whats wrong with you Chris?