ajg617

How can you tell if you have a small leak in the flex pipes? Other posts (bentley also) make reference to exhaust leaks and cat inefficiency. I see some loose threads on my passenger side flex pipe - kind of looks like I bottomed out at some point. But how can you actually tell if you have a leak? The car has become louder over time (195k) but I just chalked that up to age. Middle portion of the exhaust system does 'look' like there are some leaks at one of the joints. How far back does an exhaust leak go where cat efficiency might be affected? Car is 03 A6 Avant. Original stock exhaust.

Thanks in advance,
AJG

Huskerbob

You should be able to hear it if you get under there. You might also see evidence of exhaust smoke on the back side of any leak. Might be a blackish stain.

sb_gli

1)steal underpants
2)start car
3)plug up the tips of the exhaust with stolen underpants
4)get under car and find leaks in exhaust
5)????
6)profit

SloopJohnB@mac.com

Use the pair of pantyhose accidentally left in the glove compartment.

Huskerbob

From my experience pantyhose are never left in a glove compartment "accidentally".

Airbag

damn and i thought it was chilly out , now i know what i forgot

OP just start the car and immediately put your hand around the flex pipe ..okay the OTHER flex pipe. you should feel it blowing .

oh forget it , this thread has gone to hell..

lucio_liu

From my experience, today not too many lady wearing pantyhose anymore.

Huskerbob

So...we win? YES!

sb_gli

OP, I am sorry what happened to your thread and I take full responsibility.

SloopJohnB@mac.com

Eh...It was a comical thread...we're all responsible!