it is on the left side of the engine behind and to the right of the cooland tank....it has 4 hoses going into it, and 2 of them then go into the firewall. as far as i can tell, all 4 of them carry coolant. also, there is another line (vacuum or electric, not sure which) going into it. its a plastic piece. any idea what im talking about?

 

nevermind, water control valve, part #YG350