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Charging System - Abnormal Operation

Number 84-8-11A Date 12/84

Subject: 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.
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