As your engine runs, a small amount of combustion gas leaks past the piston rings into the crankcase (the bottom part of the engine where the oil sits). This is called "blow-by." The PCV system's job is to vent this pressure. The PCV valve is a simple, one-way valve that allows these gases to be sucked back into the engine's intake manifold to be burned off, preventing pollution and pressure buildup.
A failing PCV valve is a prime example of how neglecting a small, cheap maintenance item can lead to major engine problems. The good news is that it's often a straightforward fix.
The humble PCV valve is a critical component of your engine's health, and its failure can manifest in confusing ways. By understanding how it works, you can better identify the signs of a problem. If you notice sudden oil consumption or new leaks during your trip in Malaysia, consider the PCV valve as a likely suspect. A quick call to MyMechanic can bring an expert to your location for a diagnosis, providing a simple fix that prevents a cascade of expensive, pressure-related engine problems.
Don't assume the worst when your car starts acting up. Often, it's a simple part like a PCV valve. For expert on-the-spot diagnostics and repairs for your Singapore-registered car in Malaysia, contact MyMechanic.
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