5 Symptoms of Mercedes-Benz PCV Valve Failure in Phoenix

5 Symptoms of Mercedes-Benz PCV Valve Failure in Phoenix

In general, the positive crankcase ventilation (PCV) valve of the Mercedes-Benz is producing gas from the crankcase of the engine. It is generally directing the gas from the combustion chamber through an intake manifold to improve the emissions and overall operation of the engine.

Throughout the process, the PCV valve is transferring the excess amount of air-fuel mixture from the crankshaf. Like other mechanical components of the car, the PCV valve also gets damaged and cause several issues in Mercedes- Benz such as: 

Consume more fuel

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Contaminate the engine oil

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Damage the engine

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Oil leaks

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Build-up sludge

Without the valve, the crankshaft is damaged because a lot of pressure goes back into the combustion system or blown the head gasket. The following points define the common symptoms of failed PCV valve in the Mercedes-Benz.

Exhaust smoke from the tailpipe When the PCV valve of the Mercedes-Benz is damaged, then you will notice that the crankcase will push the excess oil to the combustion system. As a result, due to oil burning, black smoke is produced from the tailpipe.

Thus, the failed PCV valve is producing weird smoke coming out of the exhaust system and cause other issues in a car like damage to the fuel injector and other engine components. If you smell weird smoke from the exhaust system, then take your car to a professional mechanic for diagnosing the issues and repair it as soon as possible.

Consume excess fuel Like other issues in the PCV valve, the consumption of excess fuel also indicates several engine components in a car. If your Mercedes-Benz PCV valve is clogged and damaged, then it will increase the consumption of more fuel as well as the crankcase unable to send excess pressure.

Throughout the process, the excess pressure will get back to the chambers and resulted in an oil leak from any side of the crankcase. Every time, you will notice that the engine oil is dropping badly. When it comes to the engine's safety, the oil reduction may damage the engine completely.

Reduce fuel mileage Due to many reasons, you will found that the fuel mileage of the car is reduced and the main culprit behind the issue is failed PCV valve. Moreover, when the PCV valve is damaged, the intake manifold unable to receive the proper amount of fuel.

Eventually, you will notice that your Mercedes-Benz is consuming more fuel than usual and need to visit the gas stations more frequently. If you are experiencing a severe drop in fuel mileage, then you need to inspect a professional mechanic as soon as possible for avoiding further repairing costs.

Illuminated check engine light To indicate the internal problems in the Mercedes-Benz, the internal computer is using different warning lights. Some of the illuminated check engine lights are indicating simple problems or due to some significant issues. Like other issues, the failed PCV valve also activates the check engine light on the dashboard.

For confirming the failed PCV valve of the Mercedes-Benz, you have to use a reader and translate the error code by going through the dashboard computer. In this way, the error code is indicating the issues with PCV valve performance. When you will notice the illuminated check engine light, inspect the car as early as possible.

Misfired engine Due to the failed PCV valve, the engine unable to work properly and cause engine misfiring when idling. When the PCV valve is clogged, the engine unable to receive the proper amount of air-fuel mixture to one of its cylinders and cause engine misfiring. Subsequently, the failed PCV valve causes rough acceleration at lower RPM. In general, the strange noise coming from the Mercedes-Benz needs a professional mechanic to inspect the issues. Due to the leakage of the PCV valve hose or bad PCV valve, the engine will make some hissing sound. Eventually, you will notice other engine issues in a car like an engine misfiring, rough idling, and other complicated issues.

Conclusion Moreover, the PCV valve is an important part of the emission system that can help you to access the air-fuel mixture and prevent combustion system damages. If the PCV valve is clogged or damaged, then you have to replace the PCV valve as soon as

possible. People living in Phoenix need to consult a mechanic to inspect the PCV valve and need to replace it efficiently.