They are not press fit ! They screw in with special sockets. The hex shape should be a clue. Well its not hex but a special shape like oil senders and such.
X2. This myth is perpetuated by the Haynes repair manual. I have no clue where they got that idea from. While the company states "every manual based on a complete teardown and rebuild", I don't think they got the front tires off the car for this one.
This kind of mis-information is probably why most on the forum recommend a factory shop manual. They are available from a number of sources. I got mine on CD from eBay for about $25.00. It is a photo copy of the real deal in .pdf format.