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Old 09-22-2005, 06:01   #1 (permalink)
BigMacJuiced
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catalytic converter noise?

i have a 94 plymouth acclaim, recently I started hearing a rattling
noise from under the car, it has gotten worse and the only thing that
seems to be in the area of the rattling is the converter, i get close
to the converter and the noise seems to get louder. is this common, a
rattling noise and if so what causes it and what should be done to
correct it. also, can a bad converter cause the car to loose power and
hesitate on the freeway?

THANKS

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Old 09-22-2005, 06:01   #2 (permalink)
Dark1
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Re: catalytic converter noise?


"BigMacJuiced" <schugeorge1967@yahoo.com> wrote in message
news:1127390929.902030.293780@g47g2000cwa.googlegroups.com...
>i have a 94 plymouth acclaim, recently I started hearing a rattling
> noise from under the car, it has gotten worse and the only thing that
> seems to be in the area of the rattling is the converter, i get close
> to the converter and the noise seems to get louder. is this common, a
> rattling noise and if so what causes it and what should be done to
> correct it. also, can a bad converter cause the car to loose power and
> hesitate on the freeway?
>
> THANKS
>

yes a bad converter can cause those (gets worse as it warms up), except the
rattling, which is likely the heat shield on it rusting and coming loose..


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Old 09-22-2005, 11:01   #3 (permalink)
Backyard Mechanic
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Re: catalytic converter noise?

"BigMacJuiced" <schugeorge1967@yahoo.com> wrote in
news:1127390929.902030.293780@g47g2000cwa.googlegroups.com:

> i have a 94 plymouth acclaim, recently I started hearing a rattling
> noise from under the car, it has gotten worse and the only thing that
> seems to be in the area of the rattling is the converter, i get close
> to the converter and the noise seems to get louder. is this common, a
> rattling noise and if so what causes it and what should be done to
> correct it. also, can a bad converter cause the car to loose power and
> hesitate on the freeway?
>
> THANKS
>


If it's a thunky rattling, the core is coming apart or melting... if it's a
tinny rattle, that's the heat shield which can be fixed fairly
inexpensively.

BTW, it NEEDS a heat shield.
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Old 09-25-2005, 14:01   #4 (permalink)
GeorgeC
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Re: catalytic converter noise?

Clunking= fused, cracked stuff in converter.

lose power can be converter for sure. Had this exact scenario in my 84 Vette
several years ago. loss of power, rattling from converter, forst thought it
was in the torque converter.

Cost a few hundred to fix.

-G
"BigMacJuiced" <schugeorge1967@yahoo.com> wrote in message
news:1127390929.902030.293780@g47g2000cwa.googlegroups.com...
> i have a 94 plymouth acclaim, recently I started hearing a rattling
> noise from under the car, it has gotten worse and the only thing that
> seems to be in the area of the rattling is the converter, i get close
> to the converter and the noise seems to get louder. is this common, a
> rattling noise and if so what causes it and what should be done to
> correct it. also, can a bad converter cause the car to loose power and
> hesitate on the freeway?
>
> THANKS
>
>



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