Locate the radiator.
There are 2 large hoses that connect to the radiator.
The lower hose ( the large hose on the bottom ) goes directly to the water pump.
The upper hose ( the large hose on the top ) goes directly to the thermostat housing.
Inside of the thermostat housing is the thermostat.
The thermostat housing is secured by 2 bolts.
If you plan on replacing the thermostat,, then may i make 2 suggestions:
A. take car in to the shop for this service.
B. Post your next question on the step by step procedure to Mr. Shift Right,,here at edmunds dot com he is the expert on thermostat replacement.
He will be more than glad to walk you through this procedure,,additionally he can provide you with multiple sources listing supplies,,tools,,equipment,,and diagrams.