Clogged crankcase ventilation systems often are overlooked causes of engine oil leaks. Savvy service personnel keep these systems at the top of their mental checklists for solving oil leaks. I'll ...

Car engines require a lot of parts working in unison to properly function. There are thousands of explosions happening every minute when your car's engine is running, hence the name "internal ...

A $20 PCV valve failure can cause catastrophic engine damage costing thousands, but simple preventive maintenance every 60,000 miles protects your car.

Every engine has some sort of crankcase breathing system. The internal combustion process creates pressure, some of which makes its way past the piston rings-along with fuel vapors-and into the rest ...

The positive crankcase ventilation valve releases exhaust gas and unburned fuel from the engine block into the intake manifold. All engines allow some exhaust gases, unburned fuel and oil to “blow by” ...

Venting a typical V-8 engine isn't a complex affair. A breather atop each valve cover is usually all that's needed. Of course, replacing one with a PCV valve to introduce a bit of vacuum into the ...

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 ...

Question: I'm working on my Ford E-150 van with a 4.2-liter. Can you tell me the location of the PCV valve for this engine? I took the air housing covers and the engine cover off looking for it, but ...

As previously reported by GM Authority in April 2022, a class action lawsuit was filed against The General over issues with the 2.4L Ecotec I4 gasoline engine. While this lawsuit is still active, a ...