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6D-6
1977 PONTIAC SERVICE MANUAL
SLOW CRANKING, SOLENOID CLICKS OR CHATTERS
CHECK: BATTERY WlTH HYDROMETER FOR 1,200 MINIMUM OR "FREEDOM"
BATTERY FOR GREEN INDICATOR.
VISUAL CONDITION OF BATTERY CABLES AND CONNECTIONS.
IF BATTERY NEEDS CHARGING, MAKE GENERATOR AND BATTERY DRAIN
CHECK, CHARGE BATTERY AND RECHECK CRANKING. IF TROUBLE HAS
NOT BEEN FOUND, PROCEED.
I
1
GROUND DISTRIBUTOR SIDE OF COIL ON STANDARD IGNITION OR
REMOVE BATTERY LEAD FROM DISTRIBUTOR ON HEI. MAKE ALL
VOLTMETER READINGS WlTH KEY I N START POSITION.
I
MEASURE CRANKING VOLTAGE AT BATTERY TERMINAL POSTS.
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9.6 VOLTS OR MORE
w
MEASURE VOLTAGE FROM BATTERY
NEGATIVE TERMINAL TO ENGINE
BLOCK. (POS. LEAD ON BLOCK.)
.5 VOLT OR MORE
a
REPAIR GROUND
CABLE AND
CONNECTIONS
LESS THAN 9.6 VOLTS
-
CHECK BATTERY
CONDITION AND CAPACITY
,
I
MEASURE VOLTAGE
AT SOLENOID "B"
STARTER,
BATTERY
TERMINAL, CLEAN
AND TIGHTEN
CONNECTIONS AT
STARTER.
I
I
1
CLEAN AND TIGHTEN POSITIVE CABLE CONNECTIONS.
1
I
STARTER
I
1
IF OK, REPLACE CABLE.
I
NOTE: THIS PROCEDURE IS DESIGNED FOR USE ON
ENGINES AND BATTERIES AT ROOM OR NORMAL
OPERATING TEMPERATURES. I T ALSO ASSUMES
THERE ARE NO ENGINE DEFECTS WHICH WOULD
CAUSE CRANKING PROBLEMS. TO USE I T UNDER
OTHER
CONDITIONS
MIGHT
RESULT
I N
MISDIAGNOSIS.
Fig. 6D-5 Electrical System Diagnosis
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