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whining Sound after PCV wrong installation

Help, Advice, Owners' Discussion and DIY Tutorials on the Volvo S80 model. Sometimes called an "executive car", the S80 was and continues to be Volvo's top-of-the-line passenger car.
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Joined: Sat Jun 07, 2014 7:47 am
Year and Model: 1999
Location: Riyadh

whining Sound after PCV wrong installation

Post by sherry007 »

Volvo s80 2.9 1999 Non Turbo

I accidentally install the one way air valve on the Throttle hose which pushed the air back to PCV. After correcting it, now i can here the whining sound from the engine...please hear closely beside engine voice there is whining sound.

Please appreciate feedback
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