DIAGNOSIS AND TESTING - FEED CIRCUIT
RESISTANCE TEST
Before proceeding with this operation, review Diag-
nostic Preparation and Starter Feed Circuit Tests.
The following operation will require a voltmeter,
accurate to 1/10 of a volt.
CAUTION: Ignition and Fuel systems must be dis-
abled to prevent engine start while performing the
following tests.
(1) To disable the Ignition and Fuel systems, dis-
connect the Automatic Shutdown Relay (ASD). The
ASD relay is located in the Power Distribution Cen-
ter (PDC). Refer to the PDC cover for proper relay
location.
(2) Gain access to battery terminals.
(3) With all wiring harnesses and components
properly connected, perform the following:
(a) Connect the negative lead of the voltmeter to
the battery negative post, and positive lead to the
battery negative cable clamp. Rotate and hold the
ignition switch in the ON position after depressing
the clutch pedal. Observe the voltmeter. If voltage
is detected, correct poor contact between cable
clamp and post.
(b) Connect positive lead of the voltmeter to the
battery positive post, and negative lead to the bat-
tery positive cable clamp. Rotate and leave the
ignition switch key in the ON position push start
button after depressing the clutch pedal. Observe
the voltmeter. If voltage is detected, correct poor
contact between the cable clamp and post.
(c) Connect negative lead of voltmeter to battery
negative terminal, and positive lead to engine
block near the battery cable attaching point.
Rotate and leave the ignition switch in the ON
position push start button after depressing the
clutch pedal. If voltage reads above 0.2 volt, correct
poor contact at ground cable attaching point. If
voltage reading is still above 0.2 volt after correct-
ing poor contacts, replace ground cable.
(4) Connect positive voltmeter lead to the starter
motor housing and the negative lead to the battery
negative terminal. Turn the ignition switch key to
the ON position after depressing the clutch pedal. If
voltage reads above 0.2 volt, correct poor starter to
engine ground.
(a) Connect the positive voltmeter lead to the
battery positive terminal, and negative lead to bat-
tery cable blade terminal on starter solenoid.
Rotate the ignition switch in the ON position after
depressing the clutch pedal. If voltage reads above
0.2 volt, correct poor contact at battery cable to
solenoid connection. If reading is still above 0.2
volt after correcting poor contacts, replace battery
positive cable.
(b) If resistance tests do not detect feed circuit
failures, replace the starter motor.
DIAGNOSIS AND TESTING - CLUTCH PEDAL
POSITION SWITCH
For electrical diagnosis (Refer to 8 - ELECTRICAL/
STARTING/STARTER MOTOR RELAY - DIAGNO-
SIS AND TESTING).
For replacement and/or adjustment of the switch,
refer to Clutch, Clutch Pedal Position Switch
Removal and Installation.
SPECIFICATIONS
STARTER
Engine Application 8.3L (V 10)
Power rating 2.0 Kw
Voltage 12 VOLTS
No. of Fields 4
No. of Poles 4
Brushes 4
Drive Offset Reduction Gear
Cranking Amperage Draw
test
150 - 280 Amps.
Engine should be up to operating temperature.
Extremely heavy oil or tight engine will increase
starter amperage draw.
TORQUE
DESCRIPTION TORQUE
Starter Battery Cable Nut 10 N·m (90 in. lbs.)
Starter Mounting Bolts 40 N·m (30 ft. lbs.)
ZB STARTING 8F - 23
STARTING (Continued)
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