slight exhaust problem? not sure( video attached!)

[2GEEZEY]

My exhaust makes a werid noise when letting off the gas, its sounds like just air is passing through. Thats the best way to describe it. watch the video

YouTube - 07BEARS23's Channel


thanks

 

[david-b]

Actually sounds pretty normal from the speakers I have at work. Did it just start happening but never before?

 

[cabbageman97]

That is perfectly 100% normal. No need to worry.

 

[Fotowntalon]

sounds normal to me, when you let off the gas, less gasses being pushed through the exhaust so the pitch will change.

 

[2GEEZEY]

okay thanks a lot guys! I just wasnt sure.... Its been doing this ever since so just checking.

 

[cabbageman97]

Yeah, it's always done it, even when the vehicle drove off the showroom floor. Just now the exhaust is louder so it is more audible. The noise you're hearing is just a result of the exhaust gasses being expelled slower at the manifold as compared to the rear section of your exhaust. Kind of creating a suction effect, for lack of better explanation.

 

[jacobevan611]

Mine does the exact same thing and I hate it. Is there a way to get rid of that nouse. I've already added another resonator and it help some but is ther anything else I can do? thanks

 

[Locke]

You're hearing fuel-cut on decel, which is proper; the engine pumping air through the engine without combustion.

edit: Here is mine to compare. http://www.youtube.com/watch?v=_rDDeS7jXLM

 

[cabbageman97]

^^
Tada! And there you have it ladies and gentleman.
That's the explanation I was going for.

 

[jacobevan611]

How come turbo models and v8s, v6s and other cars don't do that?

 

[rstare]

How come turbo models and v8s, v6s and other cars don't do that?

All cars experience "fuel cut" when taking your foot off the throttle.