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02-23-2013
I am replacing the catalytic converter on my 2003 Grand Prix 3.8 (K vin). I have pulled the old converter but I have a question. Is there any seal on the front flange? I didn't find one when tearing it down. I know there is one on the back and have a replacement... Thanks for your help!
02-23-2013
Yes there should be a gasket for bolth flanges for everything to seal properly.
02-23-2013
I can't find one listed at part stores. Could you link to one?
02-23-2013
I bought mine from NAPA. Try ZZP, rock auto, summit racing, ect.
02-23-2013
front one is reusable i believe
02-23-2013
Hope this is not too late, but do not use an universal cat. You will get a P0420 code soon after the replacement.
02-23-2013
I made the mistake of using the cheap ZZP cat with their dp. The check engine light is on but my car seems to run ok.Originally Posted by Madness
02-23-2013
Found the gasket at O'Reilly's. I used a Walker direct fit CAT. Hope it lasts... Thanks for your help! Now on to more issues, trans pan leak, intake manifold leak.
02-23-2013
cant go wrong with a walker if you ask me.
02-23-2013
Good to hear walker is good. Fit well and was pretty easy to install once I got it far enough off the ground to get my huge self under there.
02-23-2013
Walker parts also carry a warranty, not sure on the length though.
02-24-2013
Yes they do. Thanks for reminding me. Need to send in the card on mine.
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