mysterious sound when engine is shut off

Thats in the manual someplace it has to do with the brake if I remember correctly --not a problem

 

The prius (in US at least) has a thermos where it pumps in hot engine liquids and stores it. When it starts it pumps it into the engine thus making it heat up faster. The thermos holds the temp for something like 48hrs.

 

<div class='quotetop'>QUOTE(SomervillePrius @ Mar 6 2007, 07:29 PM) [snapback]401283[/snapback]</div>

Oh that's a relief.

I thought it was the sound from the ghost of a dead worker who fell into the engine long ago.

 

Mine does the same thing and I noticed that if I try to lock the Prius, it won't respond until the sould stops. Is this normal?

 

<div class='quotetop'>QUOTE(setheriah @ Mar 9 2007, 07:12 PM) [snapback]402887[/snapback]</div>

The European version makes the same sound, and it does not have the thermos. Must be a pump for the brake hydraulics, but I sure would like to know why it needs to run after the car is switched off.

 

I remember reading in the manual that there is some sort of leak/safety check performed few minutes after the engine stops, and that makes noise too. I don't have the manual with me right now, but will be glad to review that info later on and post.

 

<div class='quotetop'>QUOTE(setheriah @ Mar 6 2007, 07:13 PM) [snapback]401270[/snapback]</div>

That's the hamster wheel spinning down.