White Dust From Car Air Vents

Initially thought it was just the cabin filter replaced to no avail then read about air cond fin corrosion potentially associated with failing water pump.

White dust from car air vents.

The dust can also be found in the air conditioning vents tucked up against the windshield and on the front of the passenger window trim. Hi over the past few weeks i have also noticed white powder blowing out of air vents on my 2009 auris 1 33 tr about 32k miles. Multiple toyota and lexus models suffer from a buildup of white dust on the dash. If there s a small pinhole which is a small leak typically caused by corrosion in the heater core drivers may have steam coming.

It s visible at all of the front vents and it has settled on everything that is in front of the vents. This dust is being made in your car. Now the white dust could be aluminum oxide or aluminum rust as the fins break down. It doesn t smell and stops after a few.

White sparkling powder comes out and covers the dash. Terrible smell coming from vents with ac or heat not all the time. Why the heck does this white dandruff looking dust come out of all my vents every time i turn on the heat ac. Started the car and noticed something coming from the vents.

Won t buy another ford. The dust normally has a grit to it rather than normal dust you d find around the house. The evaporator is made of tubes covered with aluminum fins. It also came out of the top vents when the defroster was on.

It s like a fine whitish powder but think more like a fine salt it s slightly gritty and not like talc or dust. Smells horrible and yet mechanic can find nothing wrong. Checked among other things if the ac was not draining and put in a new air filter but problem still continues. If there s a smell to the steam or if it s actually smoke you have a larger problem on your hands.

Car year make model. It is not coming from outside the car or the cabin air filter would stop it. Bill allen owner of mechanics plus in casselberry florida says that air flows through a heater core and an evaporator core before exiting the vents.