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In a 1981 Isuzu Pup diesel engine, the voltage regulator is typically located on the firewall or mounted on the alternator itself. It is a small rectangular or square unit connected to the electrical system, often near the battery. To locate it, trace the wiring from the alternator and battery, as the regulator is usually integrated into the charging system. Always refer to the vehicle's service manual for precise location and identification.

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2mo ago

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