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Thread: bad catalytic converter?

  1. 07-28-2008, 06:48 AM #1
    integra938
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    Question bad catalytic converter?

    I have been haveing a rattling sound coming from under my car,it started about a week after i put my new greddy headers on .at first i thot it might be the heat shield.. but we jacked the car up and started it up and nothing is movin,it starts geting real lound in the low rpm's as i take off ...and sounds like almost a buzz in the high rpms ...i had my emissions done .. and it
    passed,is it posable that it passed with i bad cat ? Also i have no cel.

    Year:1996
    make:acura
    model:integra
    miles: about 134000

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  2. 07-28-2008, 08:34 AM #2
    Captain-Obvious™
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    that sh.it happened on my teg...I got a test pipe for it to delete the cat because that's what someone told me it was...it didn't help at all. I figured it was a heat shield as well so I took all of them off...still didn't help...so I sold the car
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  3. 07-28-2008, 09:18 AM #3
    integra938
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    Default gay

    gay
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  4. 07-28-2008, 09:58 AM #4
    G.C
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    did you install new gaskets when you installed your new headers? where the header and cat connects at. also check if your exhaust pipe is not loose. see if its on the plastic holding thing, if its not on there right it will shake and might cause it to vibrate against something and make the rattling noise. the rattling noise can be from your muffler too. next time when you turn your car on make sure its from your cat and not the muffler. if its none of those take the cat off(6 bolts) and shake it or hit it. if that is the noise you will hear it when you hit it. thats all i can think of right now. g/l
    :idb:
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  5. 07-29-2008, 12:16 AM #5
    Barefoot
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    there is a hanger on the back side of the header. close to where it connects to the cat at. its bolted up or just hanging there.

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  6. 07-29-2008, 01:24 PM #6
    integra938
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    bolted up... we are takin everything off to find out whats going on .. the sound
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  7. 07-31-2008, 07:43 AM #7
    integra938
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    auto zone sold me the wrong gasket ... on the bottom .. that gos to my cat im trying to put the other on but it wont fit .. up so i can get the bolts back in .. the one thay sold me befor looks like this http://cgi.ebay.com/ebaymotors/Felpr...spagenameZWD1V
    this is the 2nd one http://cgi.ebay.com/ebaymotors/Bosal...spagenameZWDVW
    but i need the one that gos from header into the cat witch one is it ??
    Last edited by integra938; 07-31-2008 at 07:48 AM.
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  8. 07-31-2008, 08:29 AM #8
    Farrow2005
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    i had the same sound, then i took mine to the local muffler shop, told them to replace every thing, but the stock muffler.... so now i have 2in from the header all the way back to the axel... No funny rattle sound now. and i only spent 75 bucks. and that was some thing about laws and cats.
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  9. 07-31-2008, 09:59 AM #9
    integra938
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    ok i got the gasket on .. but .. it seems to have made my car 2x lounder ... i have a greddy muffler and greddy headers... the gasket seeems a little small .. so .. i had to take my springs off the bolt from the cat to get it to bolt up .. it looks pretty tight .. without,em .. but idk .. lol... without the gasket it was not that loud..
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  10. 07-31-2008, 10:31 AM #10
    G.C
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    thats weird it got louder with the gasket? did you tighten the pipes back together really tight? maybe you have a exhaust leak now. Cant think of any other reason why it would get louder with the gaskets.
    :idb:
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  11. 08-01-2008, 06:32 AM #11
    integra938
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    i cant get it as tight as it should be .. the gasket .. wont fit that good .. so i cant use the springs that came on the bolts
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  12. 08-01-2008, 08:14 AM #12
    integra938
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    ok i went to honda and got the gasket .. and it fit perfect!!! No more leak NO BAAAAAAAAAAAAAAAAAAAAAAAAAA!!!.. Auto zone parts FTL.. sounds nice now .
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  13. 08-01-2008, 08:27 AM #13
    G.C
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    cool.
    :idb:
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  14. 08-01-2008, 10:30 AM #14
    LightningSpeed
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    INTEGRA938 I WANT TO BUY YOUR VIDEO CARD, I HAVE PMed YOU BUT YOU BOX IS FULL!! PLEASE CONTACT ME SOMEHOW REGARDING YOUR VIDEO CARD THAT IS FOR SALE!!
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  15. 08-01-2008, 10:44 AM #15
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    turn your radio up so you dont have to hear it
    I asked a girl if i could buy her a drink, she said I have a boyfriend, so I said, well i have a goldfish, she said what? I replied, oh I'm sorry I thought we were talking about shit that doesnt matter.
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