🔧 GearHead Garage

Electrical

Diagnose and fix battery issues, alternator problems, and wiring faults. Step-by-step guides for common electrical system repairs.

Close-up view of a mechanic diagnosing a Volkswagen engine with specialized equipment.

Electrical Engine

July 17, 2026

Diagnosing a Misfiring Engine with a Scanner

Use an OBD2 scanner to read error codes and identify misfire causes.…

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Close-up of a car battery with attached jumper cables in an engine bay.

Electrical

July 13, 2026

Troubleshooting a Dead Car Battery

Check battery terminals, test voltage, and jump-start a dead battery. Also learn…

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