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henrybecker1
Citroen C3 power loss whistling noise
4 comment(s)
henrybecker1 (Author)
Boost pressure actuator, eh? Where is that even located, and how would I check it? Could that really cause all these problems? The hissing is driving me crazy!
werner_sturm77
Yeah, mine was the boost pressure actuator valve. Honestly, I wouldn't mess with it too much yourself unless you know what you're doing. It's probably best to take it to a workshop and have them check the electrical bypass valve. I bet that's your problem. Good luck!
henrybecker1 (Author)
Thanks so much for the tip! I took it to the workshop, and you were spot on – the electrical bypass valve on the boost pressure actuator was defective. Cost me 250€ to replace, but it's running like new again. I really appreciate the help!
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werner_sturm77
Sounds familiar! I had something similar happen with my C3, though mine is a later model. Did you check the boost pressure actuator? Mine was doing the same thing – reduced power, weird noises. Is it struggling to accelerate?