I need to replace my thermostat, my radiator reservior is boiling after driving. I need to locate where the thermostat is. I unbolt the top hose where it is connected to the radiator to the engine and theres no thermostat in there. Is it located somewhere else ?? is it the bottom hose to the engine. please help me out guys

 

it's the bottom hose.

 

It's the one thats hardest to get to.
On my 93 LS, it was right under the air intake,.. where it connects to the manifold.