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 ...

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 ...

Failing air chambers provide little warning of the trouble looming within. Their demise is usually sudden, accompanied by the agonizing sound of escaping air as the parts exhale for the last time.

Problems with brake chambers can leave mechanics baffled. The components can seem like chambers of secrets. But there are clear solutions to some common challenges. Many issues have been addressed ...