4B - 10 Electronic Ignition 6.0/8.1L
MEFI 4 - PCM
–
Inspect the spark plug boot for damage.
– Inspect the spark plug recess area of the cylinder
head for moisture, such as oil, coolant or water. A
spark plug boot that is saturated causes arcing to
ground.
• Inspect the insulator (2) for cracks. All or part of the
electrical charge may arc through the crack instead
of the electrodes (3,4).
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