It is also known as the crankcase ventilation system. The PCV valve is a one-way valve attached to the crankcase of your car’s engine and removes unwanted gases from the crankcase. Unlike changing ...

Here's a step-by-step guide on how to replace the PCV valve. The engine used in this guide is a 4.9-liter inline-6 in a 1991 Ford F-150. This engine is also referred to as the Ford 300. ...

The cost to replace a purge valve varies based on the vehicle's make and model, the valve's location, the type of valve, and labor cost. On average, the cost ranges from $100 to $500 but can go higher ...