: Hissing/Whistling Sound?

Broadway Joe
07-01-11, 09:40 PM
I am getting a hissing/whistling sound when I accelerate.

Ive had the car for about 2 months now and never noticed the sound before but I just installed K&N Intake and had the air, radio etc turned off.

Appears all connections are secure. No noise when in neutral even when I step on the accelerator, only when in gear. No check lights on after install. Thoughts?

07-01-11, 10:38 PM
With the K&N it is apparently "feature not a flaw."

http://www.cadillacforums.com/forums/cadillac-forum/t-178439.html (http://www.cadillacforums.com/forums/cadillac-forum/t-178439.html)


07-02-11, 12:45 PM
Rest assured, my k&n FIPK II does the same thing. I've re-tightened all the connections multiple times and it's never eliminated the whistle effect. Must be the filter itself.

07-02-11, 03:33 PM
I kinda like it

Broadway Joe
07-02-11, 08:45 PM
I guess no choice but to live with it. Thank you for the responses!