As much as I enjoy driving tractor-trailers, one thing that has irked me for many years is the parking brake valves on the dashboard. The two push-pull valves -- the yellow one for tractor brakes and ...

A vehicle's brake system is a highly complex system that deals with vehicle control and the safety of vehicle occupants. It's ...

In 1992, commercial vehicle air brake systems took a tentative step into the future when antilock braking systems were mandated by the federal government. Some truckers had a hard time trusting the ...

As spring arrives across North America, it’s important to take preventive maintenance steps and address the tolls that a season of wild temperature swings and corrosive road chemicals can take on your ...

The electronically controlled braking system (EBS or ECBS), also called electro-pneumatic braking or brake-by-wire, has been waiting in the wings for several years. It’s still back there but, ...

Plumbing up a trailer with air-brakes might be almost as simple as tying your laces, but it’s a different story with tractor pneumatics. While the system itself is beautifully straightforward in ...

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, ...

Air-brake systems are subject to excessive oil contamination. As reliable as they are, vehicle compressors can and do fail. One form of announcing this problem to the diagnostic technician is the ...