Re: [Peugeot-L] 405 Mi16 - new exhaust, car still gets loud and "pffffft" like when hot - > cat??

From: Randy Porter <droppedmi16_at_yahoo.com>
Date: 08/31/06


Hey Paul, I had a similar prob on my 89' a while back, turns out what it was is the donut gasket going bad, its the little round metalic gasket that is at the bottom of your exhaust header collector thingy, swap that out & I'm sure it will be fine.

  • Paul Hughes <pjphughes@yahoo.com> wrote:

> Hi everyone,
>
> With a new middle and rear exhaust system on the '91 On
> Mi16, the car starts out sounding perfect...after 15
> minutes or so, it gets the same "pffttt" or even a
> puttering buzz noise that it had before. Basically
> right under the driver's seat....
>
> I assume that now there wouldn't be a leak at the
> cat...so either the cat gets loud as it gets hot, or
> there is somewhere in front of the cat that has a
> leak...
>
> I replaced a rattly cat on my '89 that rattled after
> it got hot. Is this the likely culprit again? Or an
> issue at the exhaust downpipe (as I look at my
> Haynes
> manual) My guess is yes. Ugh..and this means the
> exhaust system was probably ok...
>
> Thanks in advance!
> Paul
>



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