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Buick Century

Where is the thermostat located on a 1993 buick century limited?

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September 30, 2007 1:39PM

If this has a V6 engine, it is behind the thermostat housing. Follow the upper radiator hose to the engine end at the intake manifold. That is the thermostat housing. Remove the two bolts and poke the thermostat with your finger for fun.

If this is a 2.5L engine, it is inside the thermostat housing, which has a cap on it. This is located at the engine end of the upper radiator hose. Let the engine fully cool, then turn the cap counterclockwise, which may require a lot of force. Use pliers to twist the thermostat handle (in either direction) and pull it straight up and out. If it's old, the handle may snap off which means long-nose (needle nose) pliers will be required to reach down to the thermostat and remove it. If the cap was difficult to remove, get a new cap.