Usually there are 2-3 bolts holding it on.
It would be best tho, as suggested, to buy a book or check the library.
Make sure you look at it when you take the old one out to see which way it is facing.2000 Chevy Malibu need help?I would go to the nearest parts store and buy a Haynes or Chilton manual. If you don't want to buy one, go to your library and look in the reference section. Just find the section that would help you the most and shoot some copies of it and you should be good to go.2000 Chevy Malibu need help?Don't get a stat that is 2 cold-It will mess up the computer because it won't run in closed loop.The coil on the stat needs 2 face the incoming flow of water.A 195 degree is probably what U need.