2004-2007 Cadillac CTS-V General Discussion Discussion, Hissing/Whistling Sound? in Cadillac CTS-V Series Forum - 2004 - 2007; I am getting a hissing/whistling sound when I accelerate.
Ive had the car for about 2 months now and never ...
Hissing/Whistling Sound? 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? Re: Hissing/Whistling Sound? 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. Re: Hissing/Whistling Sound? Re: Hissing/Whistling Sound? I guess no choice but to live with it. Thank you for the responses!