Weird Noise

[03redgtstang]

I am hearing a weird noise coming from the engine of my stang (Sounds like it is coming from around the throttle body). It sounds like a hissing noise( tsss tsss tsss ), like air would be leaking or something. It is a very broken noise and never really a constant sound. It will sound like tssssssss ts tsssssssssssss tssss. I have tried using carb spray to see if it bogged down the engine, and it did not. Therefore I don't believe it is an air leak. The sound gets even more intense when I give it a little gas. The hissing noise really picks up immediately after rpms lower. I am wondering if anyone has had a problem like this before, or does anybody know what this could be? My car is completely stock minus k&n filter. I brought it to a ford dealer and he said try and take apart and put the filter back together but I doubt that will be the problem.

Any advice is appreciated.

Thanks.

 

[DTNODYA]

Maybe a header/exhaust leak???

 

[03redgtstang]

Wouldnt using the carb spray around the engine though tell? It didn't bog down the engine at all when i sprayed it around all the parts.

 

[isjoining]

none of the vacuum lines are loose?

 

[03redgtstang]

yes vacuum hoses are good, and when i had the ford mechanic look at it for a few minutes he said all connections looked good too.

 

[the98stang]

if the engine runs fine, who cares about the noise?

 

[flyboy86]

Just turn up the radio, and drive around one gear lower than you should. Then you won't hear it.

 

[03redgtstang]

yeah, but you never know what could be wrong if you dont try. nobody ever said nitpicking was bad. lol it just annoys the crap out of me even if i turn the radio up, becuase i know it is still there and it still bothers me if you know what i meen. and its loud enough that other people can hear too.