Renault Scenic noise from turbo

Car: Renault Scenic
Variant: 1.9 dci
Model Year: 2002
Categories: Engine & Drivetrain
I get a sonic type of hum at full turbo boost, at between 2500 rpm to 3500 rpm.
I believe it occurs when the turbo is opening the wastegate to relief excess pressure.
Could it be another component that is making this sound when engine is loaded?
Posted: Oct 20, 2009 (15 years ago)
remove hose between turbo and airfilter feek impeller for roughness should be v smooth also check rotors arnt bent or missing
Posted Oct 21, 2009 (15 years ago)

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