BMWs are popular European imports that offer drivers a combination of luxury and performance. BMWs are known for their stylish design, as well as their powerful engines. In addition, BMWs are designed to be very safe and reliable, making them a popular choice for both families and individuals. BMWs are available in a variety of model types, including sedans, SUVs, and convertibles. As a result, there is a BMW model to suit the needs of almost any driver. Given their popularity and reputation for quality, it is no wonder that BMWs are one of the most popular European imports.
When you own a BMW, you want to be able to enjoy the smooth ride and fine engineering the brand is known for, which makes unexpected engine problems especially disappointing. One issue that may arise is PCV valve failure. Below, we’ll discuss the symptoms of PCV valve failure and why it’s important to keep an eye out for any signs that this part may be having issues.
Purpose of a PCV Valve
The PCV valve is a small, but important, component of your vehicle’s engine. The PCV valve stands for Positive Crankcase Ventilation, and its purpose is to regulate the pressure in the crankcase. The crankcase is the area where the crankshaft and pistons are located. It is also where oil is stored. Over time, the oil can become contaminated with blow-by gasses from the combustion chamber. These gasses can build up pressure in the crankcase and cause oil leaks. The PCV valve allows these gasses to escape from the crankcase, while preventing oil from being drawn into the engine. The PCV valve is typically located near the front of the engine and is connected to a hose that runs to the intake manifold.
What are the signs of PCV valve failure?
Over time, the PCV valve can become clogged or damaged, causing a number of problems. One of the most common signs of PCV valve failure is increased oil consumption. If the valve is not functioning properly, it can allow oil to enter the combustion chamber and be burned along with fuel. This can lead to a decrease in engine performance and fuel economy. Another symptom of a failing PCV valve is engine knocking. This occurs when the mixture of air and fuel in the combustion chamber is detonating prematurely. Engine knocking can cause serious damage to the engine and should be addressed as soon as possible. If you notice any of these symptoms, it’s important to have your car checked by a qualified mechanic.
The valve helps to regulate the pressure in the crankcase, and it also recycles fumes back into the engine to be burned. When the PCV valve fails, it can cause a number of problems. For one, the pressure in the crankcase will increase, which can lead to oil leaks and engine damage. Additionally, the recycling of fumes will stop, resulting in a build-up of toxic gasses. In extreme cases, these gasses can leak into the car’s cabin, causing nausea and dizziness for the occupants. As a result, it is important to have a PCV valve that is in good working condition.
The Importance of Regular Oil Changes
Many car owners know that regular engine oil changes are important for maintaining their vehicle’s performance. However, few realize that oil changes can also have an impact on the PCV valve. This valve is responsible for regulating the amount of pressure in the engine, and it can become clogged over time if it is not properly maintained. When this happens, the engine can begin to run less efficiently, and it may even start to produce harmful emissions. Fortunately, regular engine oil changes can help to keep the PCV valve healthy and working correctly. By removing debris and buildup from the valve, oil changes ensure that the PCV valve can do its job properly, keeping your engine running smoothly.
Bring Your BMW to Dart Auto
If you suspect your BMW’s PCV valve may be 
failing, bring your vehicle to Dart Auto. We are proud to serve clients in and around Englewood, Littleton, Centennial, and Denver, CO. Call or stop by today to learn more about how we can help!
* BMW M4 Car image credit goes to: Wirestock.
