Modern internal combustion engines — including those that run on diesel fuel — require a lot of special parts and systems to prevent dumping excess emissions into the atmosphere. Not only are those ...

You're driving down the road and having a normal day behind the wheel of your car. You look down on the dashboard to check your gauges and speed, but you notice that a little orange "Check Engine" ...

As a vehicle's engine operates, the intake and exhaust valves open and close rapidly while the pistons move up and down in the cylinder. These mechanical actions require a constant supply of hot oil ...

Before the implementation of hydraulic lifters to keep the engine's valves in proper working order, regular adjustment was required to maintain the critically necessary clearance in the valvetrain.

The transmission valve body is among the most important components of your vehicle's transmission system, yet it often goes unnoticed until something goes wrong. As a key player in the functionality ...

A purge valve is a vital component of a vehicle's evaporative emission control (EVAP) system. Its function is to control the flow of fuel vapors from the fuel tank and evaporative canister into the ...