Turbocharger Hissing Noise
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Turbocharger Hissing Noise
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Cause
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Correction
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Air inlet leaks or obstructions
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Inspect for leaks or obstructions in the turbocharger inlet pipes/hoses.
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Leaking charge air cooler/pipes/hoses
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Inspect for leaks or obstructions in charge air cooler/pipes/hoses using
EN 46091
inner cooler tester.
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Leaking or restricted exhaust system
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1.
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Inspect for a leak in the exhaust system.
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2.
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Inspect for a restricted exhaust system.
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Intake system leaks or obstructions
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1.
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With the engine off, pressurize the intake system using
EN 46091
tester and inspect for intake manifold leaks.
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2.
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Inspect for obstructions in the intake manifolds.
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