How do you change the boots on a Nissan Sentra?

From the images I've seen, the plugs appear to be buried in the valve cover like many Hondas and Toyotas. Pull the wires and use a small std spark plug socket and a 6" extension. Buy standard NGKs, gap per specs, use anti-seize and turn the extension BY HAND until the plugs are fully threaded. Use the ratchet to tighten the remaining 1/2 turn or so. Do not overtighten. Thanks The above answer helped me out greatly here is my experience: I first used an old spark plug wire boot to get the threads to take abite by hand ( to avoid stripping the threads. and then you attached all the hardware. Count on a good 1/2 hour to an hour to remove that one plug for the novice. I did as above it can be done it is a very tight area to work in, Socket 6 inch ext, then a angle/swivel socket, then attach a 2 / 4 " ext to the Rachet. I found that the best way is to use a 6" Wobbler extension. Without out the wobbler extension it is very difficult to get the correct angle. Spend a few minutes familiarizing your fingers with landmarks around the plug before removing the old one.