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Answered 2009-07-13 08:16:10

Not overly familiar w/vehicle, but I assume it's at the engine end of the upper radiator hose in a housing that is secured by 2 or 3 bolts. Drain about a gallon of coolant from radiator when engine is cool remove these bolts and observe hoe thermostat is mounted Clean both surfaces Install new gasket and thermostat Start engine --refill coolant slowly to prevent "airlock" and observe for leak. Run engine with heater on to normal operating temperature and top off radiator. Fiero engines have a thermostat that is easily removable from a "radiator" cap in the engine compartment. There's no unbolting or resealing necessary.

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