Strange Air Trap

[Ken Kelly]

Clarence,
	The 94 to 96 Camaro has a similar device, a small dead end tube that extends
about a foot from the duct connecting the throttle body to the Air filter. It is
definitely a silencer intended to reduce the roar caused by air flowing through
the system.

		Ken

Aaron Willis wrote:
> 
> Clarence Wood wrote:
> 
> > Hi all,
> >   a mechanic friend of mine has asked me on several occasions if I could explain a strange type of air trap that is on 80+ autos.  Today he asked again.  Here are the particulars:
> >   1994 Chevy S10, 4.3L V6.  On the air intake tube, close to the radiator support, there is a small opening on the top of the tube less than an inch square, that leads to a large, molded, plastic buble.  This plastic buble is empty and does not have anything attached.
> >   My guess is that it is some kind of air dampener.
> >   Does any body know why?
> >
> >
> > Clarence Wood
> > Software&Such...
> > 1982 280zx Turbo
> > Savannah, Tn.
> 
> Clarence,
>   I believe this is a resonator of some kind. I think it's just a way of controlling the natural frequency of the intake tract to keep the noise down. My brother's Toy PU has one - it's totally straight-thru, the intake duct runs through an enclosed cylinrical chamber
> with a tiny hole on the outside.
>   Hope this helps.
> Aaron Willis