Other information:
Removal
NOTE:
Removal steps in this procedure may contain installation details.
NOTE:
Use compressed air to remove any foreign material
from the ignition coil-on-plugs and surrounding area before removing the
ignition coil-on-plugs.
NOTE:
When removing the ignition coil-on-plugs, a slight twisting motion will break the seal and ease removal.
Detach the wiring harnes..
Inspection
NOTE:
Dropped spark plugs should always be discarded.
Unfired
An unfired spark plug should appear very clean
with a pure nickel finish to the threads and ground strap. The center
electrode ceramic insulator surface is often a matte or dull finish and
pure white in color. The external primary insulator is often a polished
white ceramic with appropriate stamping ..