Hissing on throttle tip-in; vacuum leak? AOS? Normal?

[Toddyus]

Originally Posted by tcoradeschi

Been a long time since I’ve driven my 03 without the covers in place - probably somewhere in the order of 100k miles.

My off the cuff answer is “works as designed”. I noted the sound, said “hmmm. Interesting”. And got on with life.

This falls under the heading of Fix It Until It Breaks.

My $0.02.

I think this is the correct conclusion. I vacuum tested it, smoke tested and cannot find any kind of leak. Put the covers back on and am just driving it. Who knows?

[tcoradeschi]

Originally Posted by Toddyus

I think this is the correct conclusion. I vacuum tested it, smoke tested and cannot find any kind of leak. Put the covers back on and am just driving it. Who knows?

And driving it *is* why you bought it! Of course, I suspect that Cleveland is in the middle of the week of rain that NJ is seeing right now, so not so much fun driving to be done…