The PCV valve is part of the engine’s ventilation system. Its job is to route blow-by gases, a mix of unburned fuel vapors, moisture, and oil mist from the crankcase, back into the intake to be burned ...

When you shop through retailer links on our site, we may earn affiliate commissions. 100% of the fees we collect are used to support our nonprofit mission. Learn more. BMW is recalling certain 3 ...

Once BMW started using plastic liberally, the Bavarian automaker’s reliability went downhill faster than the U.S. housing market during the subprime mortgage crisis. Instead of getting their act ...

Every engine, regardless of its condition, has a certain amount of blow-by or air/fuel mixture that slips past the pistons and rings and finds its way into the crankcase. In addition, during normal ...