Listener and big-rig truck driver David Huiner says he relies on the sound of his air brakes to let him know that his truck is operating safely. He gives us an example. Today, we have a sound clip ...

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 ...

Nearly 1,600 vehicles were put out of service for brake violations during the Commercial Vehicle Safety Alliance’s unannounced Brake Safety Day in April. On April 25, 52 U.S. and Canadian ...

The emergency and supply lines that stretch between a tractor and trailer offer a colorful reminder that compressed air is the lifeblood of your brake system. The hoses are a respective red and blue, ...

If you have ever pulled a heavy load to the top of a mountain, then you know what it's like trying to maintain control of your speed while going downhill. The weight pushes your rig faster and faster ...

For heavy duty trucks like semis hauling lots of cargo over long distances, conventional friction brakes just can't do it on their own. To maintain safe speeds and prevent overheating on long descents ...