Hi Guys.. Not too sure if this is normal or not but on a really really hot day, 41 degrees Celsius but for you americans its 113 Degrees Fahrenheight, I just recently noticed that there was like a mosquito like hum noise resonating through the exhaust and continued to hum 5-10 seconds after I turned off the car.

Has anyone have anything similar or does some guru know what that is? Its definately not coming from the engine and sounded like it was coming from the cat area to the muffler.

Thanks in advance

 

Are you dragging a kangaroo under your car, perhaps?

 

I knew to embrace myself for those comments

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kublai &raquo;</TD></TR><TR><TD CLASS="quote"> I knew to embrace myself for those comments </TD></TR></TABLE>

That is really weird, I usually can't hear anything after my car shuts off, besides boiling of coolant from my turbo. (hissssssss.bubblebubblebubble...bubble.....hiss.. .)

Is it really coming from the exhaust itself? try tapping it with a screwdriver and see if it resonates at the same frequency.

 

not too sure if its from the exhaust itself or maybe the sound is resonating through the exhaust. anyone else with suggestions?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris F &raquo;</TD></TR><TR><TD CLASS="quote">Are you dragging a kangaroo under your car, perhaps? </TD></TR></TABLE>

LMFAO.

I was leaning more towards a Koala.

 

It's the vacuum in your motor escaping through the intake tract... do you have an aftermarket cai or anything? It will be readily audible for those 10 seconds after you shut off the car from under your hood.


-hth

 

cools thats it! thanks for that. I have a comptech icebox with an aftermarket airfilter.