View Full Version : Clogged Catalytic converter.


monolithicjoe
11-01-2011, 04:43 PM
Hello all. To make a long story short I recently ran into a problem on my '00 V6 Firebird where the cat is clogged and therefore causes the rest of the car to run bad. I dont have much money to spend so my question is there a cheap method of fixing this issue? any and all info/recommendations are welcomed. Thanks in advance!

ULTIMATEORANGESS
11-01-2011, 05:03 PM
have it gutted but a clogged cat is usually a symptom of another problem.

LS-ONE_DAY
11-01-2011, 05:04 PM
You could gut the cat...it'll throw a code(s) though so that'd have to be tuned out

monolithicjoe
11-01-2011, 05:22 PM
have it gutted but a clogged cat is usually a symptom of another problem.
I knew there was an issue with the cat when I bought the car. it made a rattling noise so my best guess is that it finally gave out and got clogged. and as far as gutting it, how do I go about doing that? do I still have to cut it out of the pipes and have it re-welded back on?

ULTIMATEORANGESS
11-01-2011, 06:56 PM
is it welded on or slip fit? maybe it can be gutted without having to come off but you dont want any of that shit stuck in your exhaust.

monolithicjoe
11-01-2011, 07:29 PM
is it welded on or slip fit? maybe it can be gutted without having to come off but you dont want any of that shit stuck in your exhaust.

for the looks of it, its welded on.

y2k_ta
11-05-2011, 09:11 AM
for the looks of it, its welded on.

Chances are it's the original exhaust, which was all welded together and assembled on the car as one unit at the factory (before the rear end was hung). Most exhaust shops won't cut off and tamper or remove a cat. However, you may find a local shop that will do it anyway.

The only way to remove it is to cut it off. You can do that with a reciprocating saw if you have access to one, but then you'll need to have it welded back onto the car which leads back to finding a place that will do it since it's gutted (and getting it there with the open exhaust). If GM used a common size for the pipe diameter, you could reattach it with band clamps. However, they used an odd ball size. I'm not aware of anyone making band clamps that will fit the factory pipe.

Cooldude5231
11-05-2011, 03:06 PM
i completly cut mine off
it did throw a code.
but i scrapped it for $95
a definite jump in horsepower and sound

41863nj
11-15-2011, 12:04 AM
i gutted both of mine...from underneath it looks stock...better mileage and sound...though you may also need a 02 sensor...it will set a code once you hollow them out...