clogged cat [Archive] - GrandAmGT.com Forum

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psy7
04-30-2010, 09:37 AM
when i had my car checked due to longer shift timing than normal they came back and said that my car has 10 psi of back pressure and need to replace the cat but i dont have the money to buy the factory cat any ideas on what i should besides hollowing it out and taking it off

[ChaosweaveR]
04-30-2010, 09:42 AM
Easy. Buy a new cat. Quit being a cheapass.

AMRAAM4
04-30-2010, 09:48 AM
clogged cat

A smaller, measured dose (no more than 1/4 a human dose) of Ex-Lax or any other diuretic should work to clean him/her out.

psy7
04-30-2010, 09:49 AM
im not cheapass dumbass i dont have enough money to buy the factory one.

psy7
04-30-2010, 09:50 AM
not helping bob but that is funny

[ChaosweaveR]
04-30-2010, 09:51 AM
im not cheapass dumbass i dont have enough money to buy the factory one.

Then save up to buy a direct fit cat. You have a job, right?

PhantomLover007
04-30-2010, 09:56 AM
A smaller, measured dose (no more than 1/4 a human dose) of Ex-Lax or any other diuretic should work to clean him/her out.



http://www.holyshihtzuforum.com/users/2914/18/67/94/smiles/503807.gif


:applause:

psy7
04-30-2010, 09:57 AM
yes but i only work weekends at one and since im in the military once a month, but i am a college student so u can guess where most of the money goes and i own two cars one in illinois and my grand am but i pay insurance on both.

hahano404
04-30-2010, 09:58 AM
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
you could tell it was comin. couldnt hold that one in lol
-----------------------------------------------------------------------------------------------
50 bucks and your done. or unbolt and holesaw your converter... not sayin you should do that though.

[ChaosweaveR]
04-30-2010, 10:01 AM
yes but i only work weekends at one and since im in the military once a month, but i am a college student so u can guess where most of the money goes and i own two cars one in illinois and my grand am but i pay insurance on both.

Boohoo. A replacement cat goes for around $160. Start saving, and do sh!t right.

psy7
04-30-2010, 10:02 AM
well people have told me to do that but im tryin to see if there is an alternative to cutting the cat off or hollowing it out. someone told of high flow cats but im not sure on those

[ChaosweaveR]
04-30-2010, 10:03 AM
For what it's worth, a high flow cat does nothing for a stock GA. You'll just run the risk of triggering a P0420 code.

psy7
04-30-2010, 10:03 AM
chaosweaver shut up normal factory cats are over 500 dollars due to having to buy the other stuff along with the cat itself

psy7
04-30-2010, 10:04 AM
they told me that so im stuck with hollowing it out or taking it off which i dont want to take the risk of getting a ticket or a big fine

[ChaosweaveR]
04-30-2010, 10:05 AM
chaosweaver shut up normal factory cats are over 500 dollars due to having to buy the other stuff along with the cat itself

Obviously you have no idea how to search.

http://www.autozone.com/autozone/catalog/parts/partsProduct.jsp?displayName=Catalytic+Converter&itemId=71-0&navValue=16100071&parentId=61-0&productId=833663&fromString=&itemIdentifier=833663_157428_0_&filterByKeyWord=&categoryNValue=&isSearchByPartNumber=&categoryDisplayName=Exhaust&store=2974&skuDescription=Magnaflow/CatalyticConverter&fromWhere=&searchText=&_requestid=268782

DIRECT FIT CAT FOR $168. :asshat

PhantomLover007
04-30-2010, 10:09 AM
God you guys.... ;crap

psy7
04-30-2010, 10:10 AM
problem the autozone near me sucks ass really they dont even try to call any one else they just say they dont have it lima sucks when it comes to that but i guess ill have to try. thanks for the link. oo im not much of a computer guy so me and searching dont go so well sorry

psy7
04-30-2010, 10:12 AM
what phantom when it comes to car stuff guys will usually have arguments at least i usually do due to either my stupidity or the others its mainly differing opinions or thoughts

PhantomLover007
04-30-2010, 10:16 AM
I'm just lol at it though...

psy7
04-30-2010, 10:18 AM
lol well at least im able to make someone laugh besides my friends and ex

[ChaosweaveR]
04-30-2010, 10:18 AM
problem the autozone near me sucks ass really they dont even try to call any one else they just say they dont have it lima sucks when it comes to that but i guess ill have to try. thanks for the link. oo im not much of a computer guy so me and searching dont go so well sorry

Geez man, just get the part number and order elsewhere. The part number is what you really need.

psy7
04-30-2010, 10:34 AM
tru i write it down so i dont forget thanks even though we argued a lot

[ChaosweaveR]
04-30-2010, 10:35 AM
I'm just blunt and to the point. I hate seeing work half assed due to money issues.

PhantomLover007
04-30-2010, 10:37 AM
;1122891']I'm just blunt and to the point. I hate seeing work half assed due to money issues.

You're contradicting yourself Chris.... lol lol

Make up you damn mind...:hay:

psy7
04-30-2010, 10:40 AM
i hope never to do a half assed job on anything but if i have money issues i usually dont start a job until i know i have the money it is just very difficult with the job market and trying to get more hours at work

[ChaosweaveR]
04-30-2010, 10:40 AM
You're contradicting yourself Chris.... lol lol

Make up you damn mind...:hay:

Fock you Matt. My sinus cold is bad enough. lol

psy7
04-30-2010, 10:43 AM
i just realized this is the longest thread i have ever had lol

PhantomLover007
04-30-2010, 10:45 AM
;1122894']Fock you Matt. My sinus cold is bad enough. lol


Ok Snuffalumpigus... lol lol


i just realized this is the longest thread i have ever had lol

Welcome to the world of PW's.. lol lol :hay:

[ChaosweaveR]
04-30-2010, 10:48 AM
Welcome to the world of PW's.. lol lol :hay:

All the Matts here seem to excel in this...PW'ing you speak of. :hay:

PhantomLover007
04-30-2010, 10:49 AM
Oh yes.... We do...

psy7
04-30-2010, 10:51 AM
lol lol lol

FuriousG
04-30-2010, 10:52 AM
I'm told that you can get a few more weeks of life out of your cat if you lift the car and bang on the cat with a hammer. It may loosen some of the junk up and allow it to pass but you'll still need to get a new one. That's what was suggested to me when mine clogged and I had to wait for a new one to be shipped to Germany. Unfortunately, I got that advice a little late and the backpressure had already broken the head off of 2 of the exhaust manifold bolts. Ended up having to take the heads off to drill them out and it cost me over $2500 for all the work that was done (included an LIM upgrade to the new metal gaskets because that was what actually clogged my cat in the first place.)

If your local Autozone sucks, you can just have them ship you the part from somewhere else. Just select to have it shipped to your home rather than a local store. Even here in Germany I can get stuff from Autozone in about a week so they have pretty fast shipping. Also, I love Autozone because they are one of the very few companies that give free shipping to an APO address. Not many companies out there that will support the military even when it costs them money. They have made me a lifetime customer on that fact alone.

psy7
04-30-2010, 10:54 AM
tru i will see if they have the part first and might have it shipped to me if they dont have it in stock

hahano404
04-30-2010, 12:23 PM
^^^^^^^^^^^^^^^^^
could even make it worse.

how bout this. if money is an issue cut yours off take it to a core guy or recycler and use that money to buy an aftermarket cat.

or steal one off some 1 elses. since cutting or gutting is already illegal why not throw in theft.

psy7
04-30-2010, 12:42 PM
theft not my forte

hahano404
04-30-2010, 01:08 PM
good man.

seriosly go call some muffler shops. i highly doubt youll have any issues with aftermarket.

psy7
04-30-2010, 01:10 PM
already ordered one it will be in wednesday

AaronGTR
04-30-2010, 04:07 PM
I'm told that you can get a few more weeks of life out of your cat if you lift the car and bang on the cat with a hammer. It may loosen some of the junk up and allow it to pass but you'll still need to get a new one. That's what was suggested to me when mine clogged and I had to wait for a new one to be shipped to Germany. Unfortunately, I got that advice a little late and the backpressure had already broken the head off of 2 of the exhaust manifold bolts. Ended up having to take the heads off to drill them out and it cost me over $2500 for all the work that was done (included an LIM upgrade to the new metal gaskets because that was what actually clogged my cat in the first place.)




First off, banging on your cat is a really REALLY bad idea! It's not going to loosen up any carbon deposits. It will however break the ceramic matrix inside and plug it up even worse.

Second, there are no exhaust manifold bolts. There are however studs with nuts on them... and there is no possible way that back pressure caused any of them to break. There isn't enough force. The engine couldn't even begin to make that much back pressure much less run with that much. Broken exhaust manifold studs are pretty common if they are old and never been removed. They get rusty, and sometimes crack just from age and from the vibration of the engine and weight of the exhaust, or they get broken when you try and take them out and they are rusted in place.


To the OP, you can find OEM direct fit replacement cats much cheaper than buying the actual factory piece from the dealer. You can also get a universal replacement cat with a 2.25" inlet and have it welded to the stock downpipe at a muffler shop relatively cheaply.

zukiracer19
04-30-2010, 07:39 PM
Chaos you are a focking **** sucker, enough said. your car is gay and you love licking dirty *******s with your hairy tongue

K WeRd
04-30-2010, 07:47 PM
Chaos you are a focking **** sucker, enough said. your car is gay and you love licking dirty *******s with your hairy tongue

http://www.audiophilage.org/wp-content/uploads/2010/02/coolness-you-may-be-cool-but-youll-never-be-4-popped-collars-cool-copy.jpg

[ChaosweaveR]
04-30-2010, 08:51 PM
Chaos you are a focking **** sucker, enough said. your car is gay and you love licking dirty *******s with your hairy tongue

Are you done?

If you are, go back to GAOC already. They'll pat you on the back some more.

psy7
04-30-2010, 09:11 PM
thanks to weaver for the link i have ordered that part and a replacement gasket as well

[ChaosweaveR]
04-30-2010, 09:32 PM
No prob. Just save up and do it the right way. :applause:

psy7
04-30-2010, 09:33 PM
oo i will otherwise i dont deserve to go to unoh

Malaclypse
04-30-2010, 10:10 PM
Just FYI... if your car had 10 psi of pressure in the exhaust system it wouldn't run.

Somebody's pulling your leg...

psy7
04-30-2010, 10:13 PM
actually it could run just not very well i just happen to be fortunate

Malaclypse
04-30-2010, 11:30 PM
I'm just saying that 10 psi is enough to prevent the engine from running.

Some of the cars I've worked on had clogged cats and wouldn't go over 30 mph at full throttle. They had maybe 1.5 psi of pressure in the exhaust. I've actually measured this.

AaronGTR
05-01-2010, 08:36 AM
^Exactly!

psy7
05-01-2010, 09:19 AM
like i said im very fortunate but thanks for the input

zukiracer19
05-01-2010, 09:59 AM
;1122941']Are you done?

If you are, go back to GAOC already. They'll pat you on the back some more.

you sound a tad jealous

[ChaosweaveR]
05-01-2010, 10:23 AM
you sound a tad jealous

What is there to be jealous of?