Tips To Identify PCV System Problems in Volvo Cars

The Positive Crankcase Ventilation (PCV) system in your high-end Volvo plays a crucial role in the smooth running and better performance of the car. In fact, the system is responsible for getting rid of harmful crankcase gases and preventing pressure buildup, which ultimately leads to better pollution control from your vehicle.

However, underlying problems with the PCV system of your high-end vehicle can lead to all sorts of trouble for your Volvo. There are certain ways to identify PCV system failure in cars, and here in this article, we will discuss the tips to identify PCV system problems in Volvo.

Tips to Identify PCV System Problems

Excess Oil Consumption

Generally, when the PCV system is functioning without any hassles, it gives rise to a slight vacuum within the crankcase of your car, and this vacuum helps in preventing oil from seeping past the piston rings and valve seals. Now, whenever the PCV system is clogged or malfunctions, the pressure builds up inside the crankcase.

This is when the oil consumption in your vehicle is going to increase drastically as the pressure forces the oil past seals and rings. Moreover, this is when you are going to notice that you have to add engine oil frequently to your vehicle, even without the presence of any visible leaks in the system.

This indicates that there is something seriously wrong with the PCV system of your Volvo, which needs to be inspected by a certified mechanic. That is why it is very important to periodically inspect the engine oil level in your high-end car, as inadequate oil presence indicates issues that need to be fixed quickly.

Drop in Performance & Rough Idling

The high-end cars like Volvo are known for their top performance, and an underlying failing PCV valve can play spoilsport with the air-fuel mixture of your vehicle. Now, when the system is functioning erratically, it can either lead to excess air flowing into the intake manifold or very poor air flowing inside the system.

This is when you will be experiencing rough idling in your Volvo, hesitation during acceleration, and a drop in the engine performance of your car. You need to observe the way your Volvo idles, and if you experience excessive shaking or uneven ride, engine stalling, or hesitation along with engine misfires, then the PCV system is at fault.

As the crankcase vapors in your vehicle become unregulated, they can completely disrupt the air-fuel mixture in your car, and this is going to take a toll on the combustion process, leading to a drop in engine performance. The moment you come across any of these signs, you should get in touch with a Volvo specialist to get your PCV system inspected and fixed accordingly.

Unusual Noises from Engine Bay

Generally, when driving under normal circumstances, you are never going to hear any unusual sounds coming from under the hood of your car. However, when the PCV valve fails, it gives rise to vacuum leaks in your car, which results in a clear whistling or hissing noise coming from the engine bay of your vehicle.

Most of the time, this problem is caused by air being sucked through the small openings or cracks present in the system. Now, when your car is idling, you must listen carefully for a whistling noise while the engine is running. There is no doubt that identifying the exact source of the unusual sound can be very difficult; that is why it is important to rope in a Volvo specialist to help diagnose and fix your PCV system.

Oil Leaks

Often, a failing PCV system leads to a drastic increase in the pressure inside the crankcase, and due to this abnormal increase in pressure, the engine oil can leak past gaskets and seals, leading to oil leaks in your Volvo. In fact, you must have a look at the valve cover gasket, crankshaft seal, and camshaft seals that are prone to oil leaks.

You should have a thorough look at the engine for any signs of oil leaks near the engine block, around the valve cover, or under the vehicle where you have parked. If you come across any oil leak signs, then contact a certified European auto repair shop to get your Volvo fixed immediately.

Finally

The above-discussed factors are some of the underlying signs associated with a failing PCV valve in your Volvo. Now, any delay in taking remedial measures to address the problem can lead to serious breakdowns in your vehicle. You should have your high-end car inspected and fixed quickly.

Howland Autohaus located in Heath, Ohio is one of the most sought-after auto repair and service center in the entire area providing exceptional repair service for both Luxury European & Japanese cars.