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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (Engine Mechanical - 6.6L - Introduction) >> Diagnostic Information and Procedures >> Turbocharger Hissing Noise

Turbocharger Hissing Noise

WARNING: This page is about a different variant/trim than selected.
Turbocharger Hissing Noise

Condition Action
Air inlet leaks or obstructions Inspect for leaks or obstructions in the turbocharger inlet pipes/hoses.
Leaking charge air cooler/pipes/hoses Inspect for leaks or obstructions in the charge air cooler/pipes/hoses using J 46091.
Leaking or restricted exhaust system
  1. Inspect for a leak in the exhaust system.
  2. Inspect for a restricted exhaust system.
Intake system leaks or obstructions
  1. Inspect for leaks in the intake manifolds.
  2. Inspect for obstructions in the intake manifolds.
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