IIRC, BVSV=bi-metal vacuum switching valve.

It does something at a certain temperature to change how the motor runs when cold/hot... that's all I can remember w/o digging into the book (which isn't here w/ me now). <img border="0" title="" alt="[Razz]" src="images/icons/tongue.gif" />

Hope that helps a little though...


'97 4Runner, '06 F350, '86 4Runner, '05 WR450
http://home.4x4wire.com/erik