Multimeters can be a useful tool for both novices and professionals to limit their mistakes in automotive repair. Electrical diagnostic work is one of the most challenging parts of automotive repair.

We earn commissions from purchases you make using links in our articles. Learn more. The alternator is a device that keeps your car’s electrical system running once the engine is on. It’s essentially ...

Last week, I talked about troubleshooting a car-died-while-driving condition on my 1969 Lotus Elan +2, which I eventually traced to a broken contact face—on a set of points that didn’t even have 300 ...

If your car or truck won’t hold a charge, or if you’re having signs electrical gremlins like dimming headlights, you probably ...

We earn commissions from purchases you make using links in our articles. Learn more. Anyone who works on their car should have a multimeter, but they come in handy around the house too. Whether you ...

Those cold gray November skies should be a warning that winter is well and truly on its way. That means it’s time to whip old Bessy into shape for the approaching siege. A few precautionary measures ...

Owning a car might be the biggest, and worst, waiting game on the planet. Every single day that you step into the driver’s seat and wonder, “What might go wrong?” We’re not just talking rust buckets, ...

The reality is that like almost every component under the hood, a car battery has a finite lifespan and will conk out on you eventually. Weather conditions, corrosion, electrical shorts, charging ...

The regulator-rectifier plays a huge role in keeping a motorcycle’s electrical system running. By converting the engine’s alternating current (AC) into direct current (DC), it powers the onboard ...

The presented solution for measuring voltage of Zener diodes using Arduino is completely new and original. The circuit uses LM317 as a constant current source and the whole measurement process is ...