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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Mechanical - 2.8L (LWN) Diesel) >> Diagnostic Information and Procedures >> Compressor Air Intake Turbocharger Hissing Noise

Compressor Air Intake Turbocharger Hissing Noise

WARNING: This page is about a different variant/trim than selected.
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  charge air cooler tester
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. With the engine off, pressurize the intake system using J 46091  charge air cooler tester and inspect for intake manifold leaks.
  2. Inspect for obstructions in the intake manifolds.
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