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.

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 ...