Pontiac Fiero 1988 Service Manual page 385

6 D 4 ENGINE ELECTRICAL
SLOP CRANKING, SOLENOID CLICKS OR CHATTERS
CHECK: BATTERY FOR GREEN INDICATOR.
VISUAL CONDITION O f 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, P R O C E E D .
REMOVE BATTERY LEAD FROM DISTRIBUTOR OR IGNITION MODULE.
MAKE A L L VOLTMETER READINGS WITH K E Y IN START POSITION.
I
MEASURE CRANKING VOLTAGE AT BATTERY TERMINAL POSTS.
9.6 VOLTS OR MORE
MEASURE VOLTAGE FROM BATTERY
NEGATIVE TERMINAL TO ENGINE
BLOCK. (POS. LEAD ON BLOCK.)
X
LESS THAN 9.6 VOLTS
.5 VOLT OR MORE
REPAIR GROUND
CABLE AND
CONNECTIONS
CHARGE AND
LOAD TEST BATTERY
LESS THAN .9 VOLT
OK
MEASURE VOLTAGE
AT SOLEN08D "B"
TERMINAL, C L E A N
AND T I G H T E N
CONNECTIONS AT
STARTER.
DEFECTIVE
REPAIR
STARTER
REPLACE
BATTERY
9 VOLTS OR MORE LESS THAN 9 VOLTS
REPAIR
STARTER
CLEAN AND TIGHTEN POSITIVE CABLE CONNECTIONS.
G F Oli, REPLACE CABLE.
T H I S P R O C E D U R E I S DESIGNED FOR U S E ON
ENGINES AND BATTERIES AT ROOM OR NORMAL
OPERATING TEMPERATURES. IT ALSO ASSUMES
THERE ARE NO ENGINE DEFECTS WHICH WOULD
CAUSE CRANKING PROBLEMS. TO USE I T UNDER
OTHER CONDITIONS MIGHT RESULT IN
MISDIAGNOSIS.
. 6 2 0 2 0 2 - 6 0
Fig. 2 Electrical S y s t e m General Diagnosis - 2 of 2