Where is the thermostat located on a 1997 Chevy Venture?

If its the same as a 2001 you follow the top hose to the side of the motor.you have to remove the exhaust manifold to get to it.Its not a ten minute job!

I've changed one of these twice. It is a holy terror, but you do not have to remove exhaust manifold. Throttle body is biggest pain. You don't need to remove throttle body, just get is up a little out of your way. Be prepared for finger cramps.