Electronic Ignition Control Unit; Ignition Coil Connector - Jeep 1987 Wrangler Workshop Manual

ELECTRICAL
IGNITION SYSTEM - MOTORCRAFT (6-Cyl. Engine)
IGNITION SYSTEM COMPONENTS
The MCU is a permanently sealed module
located in the passenger compartment. It is not
repairable and must be replaced as a unit if
service is required.
Electronic Ignition Control Unit
The Electronic Ignition Control Unit is a solid-
state module. Its components are permanently
sealed. This module is not repairable and must
be replaced as a unit if service is required.
101343
NOTE When disconnecting the SSI system
connectors, pull them apart with a firm, straight
pull. Do not attempt to pry them apart with a
screwdriver. When connecting them, press
together firmly to overcome hydraulic pressure
caused by the silicone dielectric compound.
NOTE: If the connector locking tabs weaken or
break off, do not replace the a s s o c i a t e d
component. Bind the connectors together with
tape or a harness tie strap to assure good
electrical connection.
Ignition Coil
The ignition coil does not require special service
other than m a i n t a i n i n g the terminals and
connectors.
W h e n an i g n i t i o n c o i l is s u s p e c t e d of
malfunctioning, test it on the vehicle. A coil may
"break down" after the engine has heated it to a
high temperature. It is important that the coil be
at operating temperature when tested. Perform
the test a c c o r d i n g to the test e q u i p m e n t
manufacturer's instructions.
Ignition Coil Connector
The ignition coil terminals and connector are of
unique design. The connector is removed from
the coil by grasping both sides and pulling away
from the coil.
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