Q: What became of emergency brakes on cars? Can the parking brake be used in an emergency? B.K., Riverwoods, Illinois A: Originally, the service brakes were applied using a lever and cables.

Brake job proficiency is a sort of status symbol among do-it-yourself truckers, indicating a grade of mechanical expertise that commands awe among greenhorns and respect from seasoned professionals.

Few Mustang subjects are duller than parking brakes. Also called emergency brakes or "e-brakes," they were designed to keep a Mustang secure when parked. The parking brake is also supposed to stop the ...

The name is somewhat self-explanatory, but the parking brake keeps your vehicle from moving while it's parked. There are two main kinds of parking brakes: lever-operated and electronic. Both are ...

Typical, medium-duty, hydraulic brake system with front discs (red circuit) and rear drums (green circuit). Boost, or assist (blue circuit), is provided by an engine-driven pump, although the power ...

When the brakes are applied, circuits send compressed air from the storage tanks to front and rear service chambers that push the brake shoes into the brake drums, thus slowing down the vehicle. Semis ...

Have you ever tried to back up an 18-wheeler? It's no small feat, but once you understand how air brakes in semi trucks work, it all starts to make sense.