Trucking is tough. Anyone who knows a trucker is well aware of the long hours and hard work involved in providing for your family. Your truck is your livelihood, and when yours starts creeping towards the million-mile mark, it’s easy to get blindsided by an engine that gives up on you. While it’s painful to be down, it’s always better to have it happen on your terms. Keep an eye out for these warning signs, and you’ll avoid getting stuck on the side of the road.