Charging System - Abnormal Operation
Number 84-8-11A Date 12/84Subject: ABNORMAL CHARGING SYSTEM OPERATION 1983-1984 PONTIAC VEHICLES
Condition
Abnormal charging system operation can result in:
A. An overcharge of the battery and possible electrolyte leakage, or
B. An undercharge resulting in a low battery state of charge.
Cause
These conditions may be caused by a faulty voltage regulator.
Correction
Voltage regulators produced after approximately April 1, 1984 are identified with a letter "L" adjacent to the regulator terminals. These should be used in all 1983/84 generator repairs..
NOTE: Some late style regulators may not have a code "L" after the part number, but are suitable replacement for all applications. These regulators can be identified by either of the following methods:
A. Date code after 4B01, or
B. Part number ending with 988.