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peter_mayer1

V70 Diesel Turbo Issue

Check engine light on my 2013 Volvo V70 diesel, 43079 km. Reduced engine power, poor response, whistling and hissing during acceleration. Stalls at idle, higher fuel consumption. Suspect boost pressure actuator fault or defective electrical bypass valve. Any ideas?

Summary of the thread

The 2013 Volvo V70 diesel is experiencing reduced engine power, poor response, whistling and hissing during acceleration, stalling at idle, and higher fuel consumption. The suspected causes include a faulty boost pressure actuator or a defective electrical bypass valve. Suggested solutions involve checking for cracks or loose connections in the intake hoses and considering a professional diagnosis, as similar symptoms in another V70 were resolved by replacing the faulty boost pressure actuator.

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4 comment(s)

juliuslange1

Sounds like a turbo system issue, possibly a boost leak. Check for cracks or loose connections in the intake hoses. Could also be the turbo actuator. Is the noise constant, or only under load?

peter_mayer1 (community.author)

Inspected hoses, no damage found. Whistling is always present, louder under load. How did you diagnose your V70? Did you have stalling issues, and how did you resolve them?

juliuslange1

Constant whistling is less likely a simple boost leak. My V70 had similar symptoms, I suspected the turbo wastegate. I took it to a workshop. They confirmed a faulty boost pressure actuator, specifically the electrical bypass valve. I'd recommend a professional diagnosis to save time and prevent damage.

peter_mayer1 (community.author)

Thanks, I'll schedule a mechanic appointment. Seems the electrical bypass valve is the most probable cause. Repair cost was 250€. Hope this is a permanent fix. I'll monitor the turbo system, boost control and turbo actuator more carefully.

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VOLVO

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V70