First of all, are you sure you are talking about the number two plug? The spark plug wires should have the numbers on them. I believe that if you are facing the engine from the front of the car the one closest to you and on your left is the number one plug. The three plugs on the left bank (as you face the engine from the front) are easy to get to. The first two plugs on the right bank are buried under the intake manifold. However the third plug on the right bank of cylinders is actually between the engine and the firewall. That is the one which is most difficult to get to.
There are a number of questions and responses here on how to remove and replace that plug.
However if you did mean the number two plug, please tell us what kinds of problems you are having getting to it or getting it out.
Thanks.
Bruce S.
The 2002 Nissan Xterra has 16 valves.
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The 2002 Nissan Xterra has a 5-speed manual.
The 2002 Nissan Xterra has an inline 4 engine.
The 2002 Nissan Xterra is a gas-powered vehicle.
The 2002 Nissan Xterra has double overhead cam (DOHC).
The curb weight of the 2002 Nissan Xterra is 3570 lbs..
The 2002 Nissan Xterra runs on regular unleaded.
The height of the 2002 Nissan Xterra is 6 ft. 2 in. (74 in.).
The 2002 Nissan Xterra's turning circle is 35.4 ft..
The 2002 Nissan Xterra is 14 ft. 10 in. (178 in.) long.
The 2002 Nissan Xterra has 32.8 in. of rear leg room.