I need to replace my engine thermostat?

OK first follow the upper radiator hose back to the engine this will lead you to the thermostat housing. Now get a bucket and drain some anti freeze from the radiator enough to lower the coolant so not so much will spill out of the housing. Now remove the upper radiator hose from the thermostat housing and then remove the two bolts that hold the thermostat housing to the intake manifold and remove the housing then replace thermostat the put back together in reverse order and fill back up with anti freeze.

This guide will walk you through with diagrams below to show you on your car.

https://www.2carpros.com/articles/replace-thermostat

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.