A car engine is a piece of heavy machinery, and it isn’t surprising for it to make all kinds of sounds. The rotating shafts, the moving pistons and valves, the combustion process, and other engine ...

Cummins engines have more than just a deep diesel rumble. They have a signature sound that sets them apart. But what causes ...

Cars are intricate machines that rely on a series of chemical and mechanical processes to work properly. When things go wrong with one of those processes, your car can start to make some strange ...

Does your engine need a valve adjustment? It depends on the age, condition and brand of vehicle you’re driving. Due to the popularization of roller-follower valve train designs that reduce friction ...

In the pre-LS era, a typical small-block-powered street car would rev willingly to around 5,000 rpm. You could assemble a cam package for it—even using heavy components—and you probably wouldn't have ...