The thermostat is inside the thermostat housing located at the end of the upper radiator hose.
Follow the upper hose; where it hooks up to the engine is your thermostat housing.
-put car on ramps/jack stands
-disconnect upper hose from thermostat housing
-remove thermostat housing
-scrap the old gasket off the engine and the thermostat housing
-put new gasket and thermostat (spring side pointing toward the engine)
-rebolt the thermostat housing
-hook the upper hose back up
-refill your radiator and overflow tank with coolant
-with radiator cap off, turn on car and let it run
-check for leaks
-squeeze upper hose a little bit to get the air out.
-when coolant starts pouring out of the radiator, put cap back on.
-take the car for a short drive, and make sure it doesn't overheat (sometime air gets trapped in the system preventing the thermostat from operating properly).
-turn car off and let it cool down
-while it cools down check for leaks again.
-check coolant level inside radiator (make sure the engine is cool before you remove the radiator cap!) And overflow tank; add coolant if necessary.
I suggest you buy a manual (haynes/chilton); this is a very helpful tool for diy-er, and it's cheap. It will also give you the torque for the thermostat housing.
Thursday, October 30th, 2008 AT 5:10 PM