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BMW E90

How to Fix PCV Valve Failure in Your BMW in Plano

by europewpadmin April 14, 2019

If you suspect that something may be going wrong with your BMW, a common culprit could be the failure of the PCV valve. To give you a better idea of what is going on, you should be informed about what it is, what it does, what may happen if it fails, why it fails, and what you can do to fix the issue. We are here to help answer all of your questions and get your BMW back out on the road in no time.

What is a PCV valve?

PCV is short for positive crankcase ventilation. It is part of your crankcase in your engine system.

What does a PCV valve do?

A PCV valve releases gas from the exhaust and unburned fuel from the engine block. It ensures optimal vacuum levels in the crankcase so that no moisture or gunk builds up.

Warning Signs of a Failing PCV Valve

When the valve begins to fail, you may notice multiple things happening to your BMW:

  • The engine is leaking oil. Oil is unmistakable. It is a dark liquid, as opposed to blue or yellow from coolant or fuel. You can easily spot oil leaks when you move your vehicle and glance back at the area you were parked.
  • Black smoke is coming from the tailpipe.
  • Your oil usage is increased. You will need an oil change sooner than you normal.
  • Your engine makes a rough sound while idling.
  • Your engine misfires while idling.
  • Your check engine light comes on. This, however, can be indicative of more than this particular issue.
  • Sludge is building up in your engine.
  • Your vehicle is putting out a lean air-fuel mixture. This means that you will get poor fuel mileage over time. If you find yourself filling up your gas tank more when you are driving the same distance, this could be the culprit.

Why a PCV Valve Fails

Your PCV valve may fail for a few different reasons. The valve could be stuck in either the open or closed position. Another reason could be that a system hose burst or disconnected, lowering air vacuum power significantly. Lastly, your valve could be clogged with a bunch of engine build up or gunk.

What You Can Do to Fix PCV Valve Failure

There are some things you can do yourself to avoid the same thing happening to your BMW in the future. You just have to remember to do these things regularly. You should also try to catch any issue that may arise at the earliest possible time to prevent further damage.

  • Have regular preventative maintenance and inspections done by an auto shop that you trust.
  • Make sure that your vehicle’s parts are clean. Over time, debris and sludge can build up and cause your BMW to run at less than optimal performance. When your car’s parts are clean and clear, there is less of a chance of damage in the future.
  • Have your BMW taken to a qualified shop. Going to an amateur who does not specialize in foreign vehicles is risky. If they do not get the job done right the first time, you will spend more and possibly only get more problems later.

Where to Go to Have Your PCV Valve Fixed

European Auto Tech employs trained professionals who specifically service foreign luxury vehicles. We know that your BMW requires far more care and attention to detail than a standard domestic car would. Amateurs can give you a major headache, and most dealerships charge more than they should to fix fairly simple problems. We won’t scam you and we guarantee our work, taking pride in your car as if it was our own.

BMW Mechanic

We have two decades of experience and have numerous locations for your convenience. Come see us at a shop nearest you. You can also call us to set up an appointment for consultation at your convenience. European Auto Tech shops are located in:

  • Allen, TX
  • Dallas, TX
  • Flower Mound, TX
  • Frisco, TX
  • Highland Park, TX
  • McKinney, TX
  • Park Cities, TX
  • Richardson, TX
  • Southlake, TX
  • University Park, TX
  • Plano, TX

Stop by and let us help you today! We pride ourselves on being affordable, efficient, and dependable.

* BMW E90 image credit goes to: kurmyshov.

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Directions to Our Auto Repair Shop in Plano, TX

From Dallas – South

Take US-75 N to N Central Expy in Richardson. Take exit 28A from US-75 N, Drive to Central Expy in Plano, Merge onto N Central Expy, Keep right to continue on Central Expy, Keep right to continue on Central Expy

From McKinney – North

Get on US-75 S, Follow US-75 S to Central Expy in Plano. Take exit 28A from US-75 S, Drive to Central Expy