Question??
 

i know this sounds like a dumb ass question but smoke comes out the bottom of my friends car and smells like something is burning when he drives it? and he has no clue what it is and sometimes it never smokes at all after he has driven it

When it smokes is it just a puff of smoke that comes out, or does it smoke for awhile?

Sounds like he's got hippies in his oil pan. Dem hippies is *always* smoking out!

...um, could be oil leaking on the headers and burning? What kinda car, and how old is it? He should check his coolant, if there's oil in it he might have a bad head gasket, and that could be leaking oil. Or the oil pan might have a bad seal and oil's leaking there...

it smokes for a while like 20 seconds or so and its a 00 2.5rs

Could it possibly be a cat going bad?

I'd bet a smoking cat would blow its smoke out the tailpipe... if I read correctly, the smoke is coming out from under the car... not out the exhaust...

...so yeah, where exactly is the smoke coming from?

when you look under the car right underneath the engine

Sounds like oil leaking on the headers to me... have any contact on the oil pan recently?

um.. I'm not sure

could it be transmison fluid leaking?