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first open the engine hood. second remove the plastic engine cover. third locate where the upper radiator hose connects to the engine block. fourth loosen the clamp on the hose. fifth wiggle hose back and forth as you are pulling it off the thermostat housing neck. sixth remove the two screws securing the thermostat housing and remove the neck. seventh remove thermostat and clean the area around the housing. once cleaned and dried reverse the procedure and top radiator with more antifreeze.

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14y ago
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Q: How do you replace the thermostat in a 99 Oldsmobile Intrigue?
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