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drain the coolant, remove the two plastic intake tubes from the throttle body an air cleaner box an then remove the top radiator hose then remove the thermostat housing(2 bolts) remove the thermostat an clean the housing both parts (where the two parts of the housing meet) make sure u get the old gasket off an both surfaces are clean an dry an then reassemble with new gasket an thermostat (the spring side goes in towards the block) put the hose back on ( this would be the time to replace the hose clamps there cheap) then put the two intake hoses back on the TB an the air cleaner box an the fill radiator. : )

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13y ago
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Q: What are the steps to changing a thermostat in a 1993 Bronco?
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