You’ve probably heard of the PCV valve if you drive a gas or petrol-powered car, but you might not realize just how crucial this small component is to your engine’s health. Despite its simple design, ...

This video examines the long-term reliability of the BMW S55 engine by inspecting the rod bearings after 130,000 miles of real-world use. See the wear condition, potential signs of fatigue, and ...

We don't mean to be the harbingers of doom, but it's unwise to keep driving if your car's engine has a malfunctioning positive crankcase ventilation (PCV) system, particularly a bad PCV valve.

A rebuild update on the BMW M2 with the S55 engine, filmed in 4K. This video covers the crank hub fix and shows how the engine now performs better than ever. Part of the M2 rebuild series, focusing on ...

EGR stands for exhaust gas recirculation, and the EGR valve is part of a system that does as the name implies: recirculate exhaust gas back into the engine’s intake manifold for a return trip to the ...

Although some maintenance schedules include an interval for replacing the positive crankcase ventilation, or PCV, valve, others may not. In the latter case, a general recommendation is to replace the ...

Regardless of what type of vehicle you drive, if it was built in the last few decades, its engine has some form of emissions control system designed to reduce the harmful environmental impacts of ...

BMW's iconic inline six engines have had a long and storied history for the Bavarian brand. The company's inline six origins go back as far as the company's first engine, known as the IIIa, developed ...