strange high pitch noise from air filter
 

There is some wierd noise coming from my air filter box. My intake is all stock except for a K&N filter. I was doing some work on my "94 ls today when I noticed this high pitch hum or howl coming from the air filter box. Anyone had this experience and know what it is?

Re: strange high pitch noise from air filter (unclematt)
 

Is the filter your first 'mod'? if so, then yeah it's suppose to sound like that.

Re: strange high pitch noise from air filter (unclematt)
 

It's normal. The air that's being sucked through the filter creates a whistling sound at certain RPM's due to the traveling air velocity.

Re: strange high pitch noise from air filter (unclematt)
 

Yea, the first time I changed my intake I was scared that I F****d something up because it was whirring, sounded like I had a turbo or something.