Chrysler DODGE D150 1993 Service Manual page 331

8A - 10 ELECTRICAL
•
STARTING SYSTEM DIAGNOSIS
TEST C O N D I T I O N S
• PLACE GEAR SELECTOR IN PARK OR NEUTRAL A N D SET PARK BRAKE OR EQUIVALENT.
• VERIFY BATTERY STATE-OF-CHARGE A N D C R A N K I N G CAPACITY, SEE BATTERY SECTION.
• CLEAN BATTERY TOP, POSTS, A N D TERMINALS.
• VERIFY ALTERNATOR DRIVE BELT T E N S I O N .
• DISCONNECT A N D G R O U N D COIL CABLE.
SYMPTOM SYMPTOM
SYMPTOM SYMPTOM
SYMPTOM
STARTER FAILS TO STARTER FAILS TO STARTER ENGAGES,
STARTER ENGAGES
STARTER DOES NOT
ENGAGE. NO SOUNDS ENGAGE SOLENOID FAILS TO TURN
DRIVE CLUTCH DISENGAGE AFTER
OR RELAY CLICKS ENGINE. DOME LIGHT
SPINS OUT ENGINE STARTS
DIMS
POSSIBLE CAUSE
POSSIBLE CAUSE
POSSIBLE CAUSE
POSSIBLE CAUSE
POSSIBLE CAUSE
STARTER CONTROL RESISTANCE TOO RESISTANCE TOO
DRIVE CLUTCH FAULTY
IGNITION SWITCH
CIRCUIT FAULTY HIGH IN STARTER HIGH IN STARTER FAULTY
FEED CIRCUIT FEED CIRCUIT
BROKEN TEETH
IGNITION SWITCH
ON RING GEAR STARTER RELAY
FAULTY STARTER CONTROL
STARTER ASSEMBLY FAULTY
CIRCUIT FAULTY FAULTY
STARTER ASSEMBLY
PARK/NEUTRAL
FAULTY STARTER ASSEMBLY
POSITION STARTER SOLENOID
ENGINE FAULTY
SWITCH FAULTY SEIZED
(AUTO TRANS.)
STARTER
FAULTY OR
STARTER
MISADJUSTED
STARTER ASSEMBLY IMPROPERLY
FAULTY
MOUNTED
STARTER RELAY REFER TO
FAULTY
APPROPRIATE GROUP
AND SECTION OF THIS
MANUAL FOR PROPER
STARTER ASSEMBLY
SERVICE AND TEST
FAULTY
PROCEDURES FOR THE
COMPONENTS
INVOLVED
J938A-9
tery post and the solenoid threaded stud. The follow­
ing operation will require a voltmeter, accurate to
1/10 of a volt.
Before performing t h e tests, assure t h e following
procedures are accomplished:
• Disconnect the distributor connector (gas engine).
• Disconnect both wires on the fuel solenoid (diesel
engine) (Fig. 3).
Verify that:
• all lights and accessories are OFF
• transmission shift selector is in PARK (automatic)
or NEUTRAL (manual)
• parking brake is applied
• battery is fully charged (refer to Battery Test Pro­
cedures).
(1) Connect positive lead of voltmeter to battery
negative post. Connect negative lead of voltmeter to
battery negative cable clamp (Fig. 4). Rotate and
Fig. 3 Diesel Engine Fuel Solenoid