PRE-RELEASE

Whistling noise from turbocharger (A20NFT/LHU)

Criteria

Event

Leaks or obstructions in the air intake

Check for leaks or obstructions in the intake to the turbocharger.

Leaking exhaust system or exhaust system with limited function

Check for leaks in the exhaust system.

Check whether the exhaust system has limited function.

Leaks or obstructions in the intake system

Check for leaks.

Check for obstructions.