That Vibrating ‘Wub Wub Wub’ That Comes From Cracking One Car Window? It’s Not Just You!

That Vibrating ‘Wub Wub Wub’ That Comes From Cracking One Car Window? It’s Not Just You! by Jonathon Bach.

The vibration actually has a name. It is the Helmholtz resonance, or “wind throb,” and it has long plagued an auto industry that has generally made cars better with each passing year. It is as likely to assail a pricey sports car as it is a compact sedan.

The most common instance of wind throb is when a back seat driver rolls down a window when the front ones aren’t cracked. The usual advice: Open a front window. There are other scenarios, too.

There is no other fix, and modern cars get it more often:

Wind throb happens more often now because vehicles are designed to have fewer gaps between parts to eliminate any chance of their cars being labeled rattletraps. … The throb is caused by wind passing over flat openings, like a window, in a way that matches the “resonance frequency” of most car cabins. …

A spokesman for General Motors Co., owner of Buick, said wind throb is an “industry-wide challenge.” He said the company advises consumers to “open either a front window or the sunroof, if equipped.”