Diagnosis Charts; Overcharge Symptoms - Borg Warner Delco Remy 28MT Diagnostic Procedures Manual

Diagnosis Flow Charts

2-1. OVERCHARGE SYMPTOMS

• High voltmeter readings
• Battery smells bad
• Battery spews acid or smells
• Bright or burned out lights
INTERNAL VOLTMETER
REPLACE ALTERNATOR
PRELIMINARY DIAGNOSIS FLOW CHART
VERIFY COMPLAINT
RUN ENGINE APPROX 2000 RPM
CHECK VOLTS AT ALTERNATOR
MORE
THAN 15.5 V
EXTERNAL REGULATOR
USE REG. SVC. BULLETIN
TO ISOLATE DEFECT
DEFECTIVE
REPAIR VOLTMETER
120˚F OR MORE
RETEST WITH COOL,
CHARGED BATTERIES
DEFECTIVE
REPLACE DEFECTIVE
BATTERY
COMPLETE
S E C T I O N I I
LESS
THAN 15.5 V
CHECK DASH
VOLTMETER
OK
CHECK BATTERY
TEMPERATURE
119˚F OR
LESS
TEST BATTERIES
(PAGE 3-1)
OK
COMPLETE
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