Semi air brakes rely on compressors, reservoirs, dryers, valves, brake chambers, pushrods, and S-cams to move shoes or pads ...

Many of the larger vehicles on our roads have one intriguing thing in common: They can make sudden, loud, gas-escaping hissing noises. These noises, admittedly, have made this writer jump — on more ...

Among the reasons someone might want to avoid passing a semi-truck is to steer clear of that harsh piercing screech it makes when slowing down. That sound is referred to as brake squeal, and although ...