MY EXHAUST is leaking water from under in its getting rust its a small hole its not that big but i need help how do i fix this problem. i dont want it gething more rust and no water leaks i know how i got it, the street humps on every street i keep scraping it, maybe thats how i got the small hole i looked under the car in it does have rust i just want to know how to keep it from leaking water in do something about the rust help out thanx alot

 

If you have water in your exhaust in excess of normal condensation, something is very wrong with your engine and the rusting exhaust should be the least of your problems. So, how much water are we talking here?

To fix it, you would obviously take it to a muffler shop and have them weld it shut or weld a new piece in to replace the rusted section(s).

 

not that much water comes out like drops only then it stops, well my car has been sithing in my drive way for long period of time i just move it 2 times a week when i drive it it makes no sounds or nothing out of the ordinary it drives like a champ what do u think it is?

 

i fix the leak in the rust part i was woundering about what you told me about the water part now? today i turn my car on its like if the exhaust spits the water out then it stops not alot only for like 30second, by the way the catalytic converter is guetted out(i know iam polluting) can that be the problem what do u think?

 

Is it possible that his cat is kicking so much ass that what we normally see dripping out of the tailpipe is coming though a hole sooner than that?

 

What?

 

If your catalytic converter is working well, condensation will be visible from the tailpipe exit and will actually form a drip. Where is your leak visible from?

 

Water is a natural byproduct of combustion from the engine, not the catalytic converter. NOx is broken down into nitrogen and oxygen and carbon monoxide into carbon dioxide and oxygen by the catalytic elements. Water is not a byproduct of these reactions.

It sounds to me like normal condensation that has built up inside the piping.

 

so there is nothing rong whit my engine? its my cat doing it ?

 

When your engine burns fuel and air, part of the exhaust is water vapor. That's the plume of vapor you see exiting the tail pipe. The rust is probably from scratches on the outside. The metal won't really rust in just pure water. It needs salt, and the muffler only really gets exposed to salt from the outside.