My '98 is in front of the engine, to the left of center as you face the engine. (passenger side of center) Hard to reach without pulling a bunch of stuff imo. Behind the fan, under the intake hose...etc etc.
This site has a bunch of how-to videos. This particular one is for an older model, but might be similar.
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.