Where is thermostat on 1996 Mazda 626?

The thermostat on a 1996 Mazda 626 is located in the engine compartment, specifically at the junction where the upper radiator hose connects to the engine. To access it, you'll need to remove the upper radiator hose and the thermostat housing. Once the housing is removed, you can replace the thermostat. Always ensure the engine is cool before starting this procedure to avoid burns.