How to Spot BMW PCV Valve Failure Before It Becomes A Major Problem? From Experts in Royal Palm Beac

The Positive Crankcase Ventilation (PCV) valve is a vital part of the emission control system in your BMW. The PCV valve helps in rerouting the excess gases in the emission back into the intake manifold where it can be used as fuel. This helps in reducing the emission of harmful gases from your car.

If you are finding it difficult to spot a bad PCV valve in your high-end car, then here in this article, we will discuss the signs associated with PCV valve failure shared with us by the experts in Royal Palm Beach, FL.

Unusual Noise

There are seldom any instances where you are going to hear anything unusual coming from under the hood of your BMW while driving. However, when you get to hear unusual sounds coming from under the hood of your car, then it signifies that something is wrong with your vehicle.

Whenever the PCV valve starts malfunctioning in your BMW, you will get to hear a hissing, whistling, or whining noise coming from the engine of your car. The sounds that you get to hear indicate that there is a leak in the hose of your PCV valve.

However, people at times think that the sound might be caused due to other underlying issues. One of the best ways to determine whether your PCV valve is at fault or not is by blocking the vacuum source of your PCV valve for a temporary period and check whether the sound is stopping or not.

If the noises stop coming, then you must immediately take your high-end car to a BMW specialist who can diagnose & fix the issues with your PCV valve.

Engine Misfiring

Another symptom associated with a faulty PCV valve in cars is related to the functioning of the engine. To your unpleasant surprise, the engine is going to misfire when you are driving. The problem becomes evident when you are idling and the reason behind this misfiring is related to vacuum leaks.

The vacuum leak in your car might be affecting a single cylinder but still, you are going to experience the misfiring of your engine. The leak allows excess air to get inside the engine cylinder and causes the air-to-fuel mixture to go haywire and this ultimately leads to engine misfire.

In addition to this, the misfiring of the engine of your high-end car can also be caused due to a blockage in the PCV valve hose. The PCV valve gets clogged with sludge, fuel, and oil over the years and needs to be cleaned during the maintenance schedule of your car.

Fuel Economy Degrades

Now, a majority of BMW drivers might not be keeping a very close tab on the miles per gallon of their car thinking that as they are driving a high-end car equipped with a powerful engine its fuel economy might not be great. However, one needs to understand that every car whether it is your BMW or any other has a constant miles per gallon both in the city & on the highway.

When you are quite particular about your vehicle’s miles per gallon, then any deviation from its constant performance will immediately catch your attention. The failure of the PCV valve in your BMW is going to adversely affect the fuel efficiency of your vehicle.

Due to malfunctioning of the PCV valve, the engine control unit is not able to apprehend the amount of air entering the engine and allows too much fuel to flow into the combustion chamber thereby affecting the fuel economy of your high-end vehicle.

Illumination of Check Engine Light

Of late, cars including your BMW are coming equipped with many advanced warning lights located on the dashboard of the vehicle and the check engine light is one such warning light in your vehicle. The malfunctioning of the PCV valve in your BMW will lead to the flashing of the PCV valve in your BMW.

However, the problem with the check engine light is that it can illuminate due to a host of factors and you will require the assistance of a certified automotive repair technician who will use an advanced scan tool and code reader to determine the real reason behind the illumination of the check engine light on the dashboard of your car.

Finally

The above-discussed factors are some of the leading signs associated with the failure of the PCV valve in your BMW. These signs are evident from the day your PCV valve starts to go bad and if you come across these signs, then don’t delay in taking your BMW to an authorized repair shop to get the PCV valve fixed.

We at Milestone Motors located in Royal Palm Beach, FL is one of the most sought-after auto repair and service shop in the entire area. We have years of experience in looking after BMW and Mini models and in addition to this.