It could be either a leaking heater core or the a/c system is freezing up..........
i cant get ac from my panel vent on a 1989 caddillac fleetwood brougham
White smoke with the a/c on means that the a/c system is freezing up and you need to check the pressure switch........... White smoke with the a/c off means that you have a leaking heater core........
Is this vent in a car or house??
fumarole
When we camped, we cut a vent in our lean so the smoke could get out
A chimney. A vent.
You need a filter retainer
its pops
YES you can! you can even use a dryer vent to the outside.
A vent, flue or chimney.
Check the Heater Core? Did it smell like oil or antifreeze. My Heater Core went, started blowing out smoke from the vent. Most Likely the Problem. "smoke" poured into my 1991 when the ac blew out all the freon and froze up the outside temp gage.
the vent is the chimney after you find a chimney that's giving out smoke stand on it for about 5 seconds