Pass side 2-4-6 driver's 1-3-5
Spark plugs and wires
I would replace the spark plugs after 50K, the wires and plugs again at 100K.
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 pretty sure that engine has coil on plug...so no wires.
The 10.2mm spark plug wires are the wires that are only needed for the engine to run on a 1995-2005 Chevy Cavaliers.
under the ignition coils, there are one coil for each spark plug.
Follow the plug wires to the end. One end connects to the "distributor" along with the other wires. The other end connects to the spark plugs...
5w30
Follow wires, if none somewhere in head(s).
there are 3 in the front and 3 in the back if its a 6cyl.
If your 05' E250 has a Triton V8, you don't have spark plug wires. Each cylinder has it's own coil, which must be removed prior to retrieving spark plugs.