How Do You Tell If The Crankcase Vent Valve Is Bad In Your BMW X5

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How Do You Tell If The Crankcase Vent Valve Is
Bad In Your BMW X5?
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The crankcase vent valve or PCV valve is a vital
emission control device.
3
It routes blow-by gases from the crankcase to the
combustion chamber.
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By doing so, it achieves the following
objectives-

• Minimize vehicular emissions
• Lower the crankcase pressure
• Enhance the engine efficiency

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If you want to keep your BMW engine healthy, keep
its PCV valve in good condition.
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Have a look at some of the most common signs that
your PCV valve is failing.
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How to know if you need a new PCV valve?
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The Engine Is Losing Oil
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If your car is leaking oil, your BMW X5 could
have a defective oxygen sensor.
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You should have your car checked by a technician
to find out what the problem is.
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The Engine Is Running Lean
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As your PCV valve is failing you may notice that
your BMW X5 is running lean.
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If you dont address the issue on time, it may
result in expensive car repairs.
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Declining Engine Performance
15
Your BMW X5 engine will perform poorly if you
have a clogged PCV valve.
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Nonetheless, bad engine performance should always
be inspected by professionals.
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Odd Exhaust Smoke
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Another sign commonly associated with a faulty
PCV valve is the emergence of dense exhaust smoke.
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It happens due to the seepage of engine oil into
the combustion chamber of the engine.
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Flashing Check Engine Light
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Another sign of a PCV valve problem in your BMW
X5 is a glowing check engine light.
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If your CEL is on, then give your BMW a check-up
from a certified technician.
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Final Thoughts
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PCV valve failure can give rise to all sorts of
performance issues in your BMW X5.
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Therefore, if youre noticing any of the
aforementioned signs, dont ignore them.
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