You have to remove the Coil on Plug modules from the intake, and then use a long
extention to reach to spark plugs deep in the intake manifold. Instead of having spark
plug wires going to the tops of each spark plug, the system has a separate ingnition coil attached to each spark plug instead. Just a little more involved than older cars.
It is moderately easy to change the spark plugs on a Liberty, although it is rather tricky because of the gap between the spark plugs.
I would replace the spark plugs after 50K, the wires and plugs again at 100K.
on the 3.5 v6 take off the engine cover, unscrew the coilpacks and take out the spark plugs.
Changing spark plugs is relatively easy. Disconnect the batter and spark plug cables, and remove the old spark plugs. Next replace the spark plugs with new ones, reconnect the spark plug cables and battery.
After 105,000 miles. Nissan Maxima spark plugs are platinum-tipped and lasts for many years.
Take it to a Toyota dealership
How to change the spark plugs
get a 3/8 in.drive Rachet,w/a 10in.3/8 extension,plus your spark plug Socket.that will do it!
u take the old ones out and replace them by color
NGK platinum plugs
Both V6 engines have 6 spark plugs
Pass side 2-4-6 driver's 1-3-5