Ford Galaxy power loss whistling noise

Hi, I'm having a problem with my 2021 Ford Galaxy (gasoline engine). The check engine light is on, and the car feels like it has reduced power. Engine response is terrible. I hear a whistling noise and a loud hissing sound when accelerating. Sometimes, the engine even stalls when idling. My fuel consumption has definitely increased. The car has 202103 km. What could be wrong?

4 comment(s)

Sounds like a turbocharger issue. I had similar symptoms with my older Peugeot 308. Check engine light, power loss...

Thanks for the quick reply! Turbocharger, you say? No recent work at all. What exactly was the issue with your Peugeot?

My Peugeot was diagnosed with a defective electrical bypass valve on the turbocharger. It caused the boost pressure to be all over the place. I would take your car to a workshop; they can check the boost pressure actuator and its electrics.

Thanks a lot for your help! It turned out to be a defective boost pressure actuator, just like you suggested. The workshop confirmed it. Repair will cost me about 250€. Your advice saved me a lot of time!

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