Restriction and /or air leak in the compressor inlet ducting and/or outlet ducting

Inspect the compressor inlet/outlet ducting. Remove any restrictions. Tighten the connections and/or replace any damaged duct work.

Rotating components or turbocharger out of balance

Replace the turbocharger. Refer to Turbocharger .

Compressor and/or turbine wheel contacting the housing.

Refer to Turbocharger . Locate the reason for damage. Replace the turbocharger.