Mercury Mountaineer

Where is the thermostat on a 98 Mercury Mountaineer?



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Never changed one on a Mountaineer but have chnged them on several other vehicles. Follow the upper radiator hose to where it connects to the gooseneck which is held to the engine with two bolts (usually). After draining the radiator and removing the upper radiator hose from the gooseneck, remove the bolts from the gooseneck and the thermostat should be just underneath. The gooseneck is also called the thermostat housing.