can someone tell me why my exhaust is spitting out black stuff mixed with what seems to be water?! its all over my garage floor and im tired of cleanin the floor. someone please explain.

 

It's condensation nothing to worry about...calm down and take a deep breath

 

where or why does this happen?

 

If you haven't tuned your car it could also be running very rich....

 

It's the reason why old ppl get new exhausts ever year... it is the same principle as a cold cup of water sweating on a hot day... the exhaust gas is hotter than the air outside the pipe so vapor condinsates on the inside of the pipe. most of the time exhaust systems rust out it is because of short driving trips, the vapor doesn't have time to burn out and sits in there and rusts it...

it's late i'm not responsible for spelling...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dr Drew &raquo;</TD></TR><TR><TD CLASS="quote">It's the reason why old ppl get new exhausts ever year... it is the same principle as a cold cup of water sweating on a hot day... the exhaust gas is hotter than the air outside the pipe so vapor condinsates on the inside of the pipe. most of the time exhaust systems rust out it is because of short driving trips, the vapor doesn't have time to burn out and sits in there and rusts it...

it's late i'm not responsible for spelling... </TD></TR></TABLE>

good answer

 

One of the products of the combustion of HYDROcarbons with OXYGEN is H2O, water. And yeah, the black sooty stuff mixed with the water means you are running rich.

 

damn tuners!!! fwakin A!!!!!! im running rich while in idel....really rich! my apexi timer/a/f thing says 10 and my autometer says all the way green. they suck. i paid too much...fwakers.

would my a/c constantly being on do this too? i think something is stuck on "on" or i have a leak.

any1 else? thankx for the replies

 

relax its pretty normal, mine use to do it all the time. just dont start your car when your in the garage.