There's no more satisfying feeling for a truck driver than the airbrake knob smacking the palm of your hand at the end of a grueling haul, hearing that "pshhh" of the air system and knowing that ...

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.

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 ...