smoke coming out of a/c vent

writes in article .com> dated 3 Feb 2005 13:21:36 -0800:
>this was a steady continuing flow of visible vapor. It only went away
>after I had shut off the A/C. It only happens if I drive over 55.
>
>Is this considered an A/C problem? If so, I'll have to
>tell the mechanic to check my A/C. I'm not experiencing problems with
>the a/c refrigerant though, it still keeps me cool during a hot day.

What does it smell like?

Air -- it's just condensation from cold air mixing with warm, no prob.

Antifreeze -- you have a broken heater core.

Chlorine -- broken AC condenser.

Ozone or something burning -- bad blower motor (?)

-- spud_demon -at- thundermaker.net
The above may not (yet) represent the opinions of my employer.

wrote:

> this was a steady continuing flow of visible vapor. It only went away
> after I had shut off the A/C. It only happens if I drive over 55.
>
> Is this considered an A/C problem? If so, I'll have to
> tell the mechanic to check my A/C. I'm not experiencing problems with
> the a/c refrigerant though, it still keeps me cool during a hot day.
>

If it was WHITE it still sounds a lot like water vapor (fog). This is
not terribly unusually, as folks have said. Another tipoff is the
smell. If it is smoke it will smell, if no smell it is likely fog.

Turn actual AC off, or turn temp control all the way to heat. Leave
blower on. If fog/smoke disappears now, it is definitely fog.

> wrote in message
oups.com...
> 1994 accord.
>
> I was driving about 55 MPH, with my A/C on, when I noticed that
> smoke was coming out of the center a/c vent. I shut the
> a/c off and the smoke stopped coming out.
>
> Anyone know what's going on here? I hope it's not poisoning.
>

Is there any odor associated with the "smoke"? Could be steam from a failed
heater core.

so, did you get it fixed or did you leave it alone? I notice the
vapor during the daytime, when the a/c is running and while i'm
driving at or above 55 mph.