rainermond1

XC60 hybrid engine smoke and power loss

Hello, I own a 2021 Volvo XC60 hybrid with approximately 104999 km on the clock. Recently, the check engine light illuminated, and I've noticed a distinct reduction in engine power. More concerningly, I'm seeing some smoke when accelerating. I've done some digging, and it seems like a potential crankcase ventilation valve malfunction. Could a defective PCV cause these symptoms?

A 2021 Volvo XC60 hybrid owner is experiencing engine power loss, smoke during acceleration, and an illuminated check engine light. These symptoms suggest a potential crankcase ventilation valve (PCV) malfunction, which can disrupt the air/fuel mixture and cause oil to burn, indicated by bluish smoke. While a handy individual might attempt a fix, the complexity of modern vehicles and the integration of the PCV valve into other components make professional repair advisable to avoid further damage.

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4 comment(s)

Hey there! Those symptoms definitely point towards a crankcase ventilation issue, especially the smoke and reduced power. A malfunctioning PCV valve can indeed cause those problems. It messes with the air/fuel mixture and can lead to increased pressure in the crankcase, forcing oil past seals, hence the smoke. Has your fuel economy also taken a hit? Also, can you describe the smoke color? Is it blueish or more black/grey?

Thanks for the quick response! Yes, the fuel economy has decreased a bit. The smoke is more of a bluish color. If it is the crankcase ventilation valve, is it something I could fix myself, or does it require specialized tools and knowledge? I'm reasonably handy with cars, but I don't want to make things worse.

Okay, bluish smoke definitely indicates oil burning, reinforcing the PCV valve suspicion. While a reasonably handy user could theoretically replace the PCV valve, on a modern Volvo, it's often integrated into the intake manifold or valve cover, making access tricky. Plus, you'll need to properly diagnose it to be 100% sure. I'd strongly recommend taking it to a reputable workshop. A faulty crankcase ventilation can cause increased emissions and further damage in the long run. I wouldn't risk it.

Thanks a lot for the advice! I'll book it in with a local Volvo specialist. They've quoted me around 360€ for the repair, which seems reasonable. I appreciate your help in narrowing down the issue and preventing me from potentially causing more damage!

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VOLVO

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XC60