The spring goes towards the engine.
The thermostat spring always faces the engine block and not toward the radiator hose.The spring end of the thermostat faces into the engine.
A thermostat always goes in spring side toward the engine.
spring goes toward engine
The larger part with the spring on it goes towards (in to) the engine.
Follow the upper rad hose to the engine and at the engine there is the thermostat housing. Make sure when replacing the thermostat the spring goes toward the engine.
Spring faces down toward engine.
jUST A THERMOSTAT HOUSING GASKET. mAKE SURE YOU PUT THE NEW THERMOSTAT WITH THE SPRING TOWARD THE ENGINE.
The previous answer is incorrect! The 3.0 and 3.3 liter engines used in all the Mercury Villagers and Nissan Quests from 1993-2002 have the thermostat installed just the opposite of most all other engines. The spring side of the thermostat goes into the thermostat housing not the engine block as was previously stated below. Flat Side Outward, Spring Side Toward Engine
The spring side goes toward the engine.
The spring goes into the engine block.
Follow the upper rad hose from the rad to the engine and there you will find the thermostat in a housing. When replacing it make sure the spring on the thermostat goes toward the engine.
Follow the upper radiator hose from the radiator to the engine and at the engine you will find a housing with the thermostat inside. When replacing it make sure the spring goes toward the engine.