Just like the topic states, my cat went bad so im putting my new one in today... any advice or tips?

 

Soak the nuts in WD40 or in some kind of rust eater. Those nuts can be welded on there from all the rust and heat over the years.

Soak them overnight, work on it in the morning.

 

^ Best advice.

Try some PB Blaster too.

 

soak em and use 6 pt sockets

 

Feed it and give it a litterbox this time.

But seriously, did your catalytic converter go bad due to age or was it random?

If it was due to a problem, the new cat could fail for the same reason as the last one. Just wanted to check, let us know.

 

well my car has been running rich and has had some blow-by so im assuming that my 02 sensor is out to, so i am replacing both, im really hoping that will fix the problem. I know that cat is bad because its rattling like a mother.

-Jon

 

just be careful w/ the bolts and nuts, spray them good like the others said

 

Yeah, I ran rich for too long and blew a friggin' hole right through my old cat...Threw the code so i got a new magnaflow put in too. Sensor was ok it seemed. Good luck.