Intermittent electrical problems on a car or truck are among the repairs that service technicians dread most, especially if they work on a flat-rate pay system that requires them to find and fix ...

Which way does electricity flow through a vehicle’s electrical system? From positive to negative, or from negative to positive? Depending on your viewpoint, it can flow either way. When most people ...

Alternators like this one will probably disappear from the front of engines, replaced by a starter generator built into the transmission. Photo: Jim Park Within a decade’s time we will probably have ...

After a sharp spike to start the year, truck service activity is settling into a more predictable rhythm. According to exclusive Q3 2025 data from Decisiv, overall service activity declined 2.9% ...

General Motors has patented a vehicle electrical system with a rechargeable energy storage system (RESS) and power inverter connected to an electric motor. The system efficiently steps down voltage ...

Corrosion will be a problem with 48-volt electrical systems. While voltage increases by a factor of four, corrosion could increase by a factor of 10. In a 48-volt electrical system, the alternator ...