2010 Citroen C4 when i accelerate i get a high pitched whirring sound

Car: Citroen C4
Year: 2010
Variant: picasso vtr+ hdi s-a
Categories: Leaks & Noises
When i accelerate i get a whirring sound coming from the engine. the more i accelerate the higher pitched the sound. i have no loss of power and everything appears normal when driving. when i reach cruising speed the sound drops to a low drone but comes back again when i have to accelerate away. is this a major problem?
Posted: Feb 1, 2022 (2 years ago)
Turbo whistle ?
Posted Feb 1, 2022 (2 years ago)

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