What is the top speed on a 1991 Oldsmobile Royale?
The thermosthat housing is located almost directly on top of the engine. If you are standing in front of the engine, just look for the house (the top house)coming from the radiator. Once you do this, and follow the house to the top of the engine, the hose will connect to the engine with a metal housing, and usually two bolts. This part is the thermosthat housing, wich contains the thermosthat as well.