lea_loewe59
XC90 Hybrid Reduced Engine Power
Summary of the thread
A 2017 Volvo XC90 hybrid is experiencing reduced engine power, a check engine light, increased fuel consumption, and a whistling noise during acceleration. Possible causes include issues with the turbo system, such as a faulty boost pressure sensor, turbo actuator, or electrical bypass valve. It is recommended to have the vehicle diagnosed by a professional to identify and resolve the issue effectively.
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4 comment(s)
lea_loewe59 (community.author)
Boost pressure sensor, huh? Where is that even located, and how would I check it? I'm not very mechanically inclined. Is that something I can easily inspect myself, or am I looking at a trip to the shop?
piaghost5
Unless you're comfortable working around the turbo system, I'd recommend taking it to a workshop. It could be a defective electrical bypass valve. I tried fiddling with mine, and it just made things worse. The problem with my Audi was exactly that, and the repair cost around 250€. Better to get it diagnosed properly to avoid further damage.
lea_loewe59 (community.author)
Thanks for the advice! I suspected it might be something I couldn't easily fix myself. I'll take it to my local shop and mention the electrical bypass valve and turbo actuator. Hopefully, it's a relatively straightforward fix like yours was. Fingers crossed!
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VOLVO
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XC90
piaghost5
Sounds frustrating! I had a similar experience with my 2014 Audi A4 a while back. Reduced power, weird noises... the whole shebang. Have you checked your boost pressure sensor? It might be a faulty turbo actuator or the turbo wastegate is playing up. Does it feel like the turbo isn't kicking in properly?