Wind noise and air leakage noise are high frequency noises heard while driving. They are heard mainly from around the door when the window is closed.
AIR OR WIND NOISE GENERATED
When the wind hits a projection, an eddy or swirl is produced behind the object creating a noise (the principle of flute and bugle sounds). The parts having projections include drip molding, pillar molding, waist molding, hood, wiper, outside mirrors and antenna. The parts having unevenness include pillar molding and front door glass.
AIR LEAKAGE NOISE
This is noise produced by air leakage from the passenger compartment which is not tightly closed (e.g., weatherstrip improperly installed)
Parts often causing (1) and (2) are the regions around the front pillar, door sash and door glass.
CHECKING AND REPAIR
Doors have a triple seal construction that consists of door weatherstrip, body side welt and parting seal. Because of this, anti-noise performance and door closing sound have been improved, and a secure feel when the door is closed has been enhanced.