Drivers of semi trucks are perhaps the most at risk drivers out there; this is due to the massive size of semi trucks, and the unique difficulty in delicately maneuvering these giant metal beasts. Semi trucks are more vulnerable to mechanical issues that affect smaller sedan style cars much less commonly – and when they break down, it really sucks for the driver, since they commonly are towing cargo with a specific delivery time. Here’s a guide, as prepared by the truck towing experts at Towing Chicago, as to the most common causes of semi truck roadside breakdown that we respond to.