My WAG would be a vacuum leak in the brake booster vacuum system.

Mark

Don Hanson wrote:
>  ....  Every since I have owned it, when the engine catches and the
> starter motor is cut off, there is about a half second of this strange
> honking noise...I  don't really know the right way to describe it, but
> it seems similar maybe to when you take a ping pong ball and squish it
> down with the paddle onto the table...really kind of a brief
> 'squelching' noise, sort of.  Not loud, not alarming, just puzzling.
> Anybody  want to try to guess what might be causing this sound?
>
>