Hyundai Sonata 1991 Shop Manual page 141

STARTING SYSTEM
The starting system includes the battery, starter motor, solenoid
switch, ignition switch, inhibitor switch, connection wire and
battery cables.
When the ignition key is turned to the start position, current
flows and energizes the coil of the starter motor's solenoid.
When this happens, the solenoid plunger and clutch shift lever
are activated, and the clutch pinion engages the ring gear. The
contacts close and the starter motor cranks.
In order to prevent damage caused by excessive rotation of the
starter armature when the engine is started an overrunning
clutch is used on the pinion gear.
27Y039
Pinion gear
Solenoid coil
"$"
terminal
\
IT~~~~\t-
Shift lever
IJ
L
Overrunning
@;'L'J~=J'l'''ijT+tl~
clutch
"8" terminal_
Y27CAOA
STARTING SYSTEM
GENERAL INFORMATION
TROUBLESHOOTING
Y27CBOA
Symptom Probable cause
Remedy
Engine will not crank.
Battery charge low Charge or replace battery.
Battery cables loose, corroded or worn Repair or replace cables.
Inhibitor switch faulty
Adjust or replace switch.
Fusible link blown Replace fusible link.
Starter motor faulty
Repair starter motor.
Ignition switch faulty Replace ignition switch.
Engine cranks slowly. Battery charge low Charge or replace battery.
Battery cables loose, corroded or worn
Repair or replace cables.
Starter motor fa ulty
Repair starter motor.
Starter keeps running.
Starter motor faulty
Repair starter
motor.
Ignition switch faulty Replace ignition switch.
Starter spins but engine
Short in wiring
Repair wiring.
will not crank.
Pinion gear teeth broken or starter Repair starter motor.
motor faulty
Ring gear teeth broken
Replace flywheel ring gear or torque
converter.
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