LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2015 >> Verano Leather >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Mechanical - 2.0L (LHU)) >> Repair Instructions - Off Vehicle >> Turbocharger Cleaning and Inspection (LDK, LHU)

Turbocharger Cleaning and Inspection (LDK, LHU)

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Turbocharger
    GM2146356Courtesy of GENERAL MOTORS COMPANY
  1. Completely inspect the turbocharger (1) and all other engine components that may cause similar conditions before replacing the turbocharger. Refer to Symptoms - Engine Mechanical .
  2. Clean all mating surfaces.
  3. Inspect all threaded holes for damage.
  4. Inspect the wastegate actuator rod for damage.
  5. Inspect the compressor and turbine blades for damage or foreign material.
  6. Clean the turbocharger inlet mating surfaces.
  7. Fig 2: Inspecting Turbocharger Inlet Mating Surfaces For Damage
    GM2277764Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not replace the turbocharger if cracks are found on the turbocharger inlet flange partition wall (1). Replacement should only be performed if external leaks are present.

  8. Inspect the turbocharger inlet mating surfaces for damage. Replace the turbocharger if damage is found.
  9. Fig 3: View Of Turbocharger Wastegate Regulator Solenoid Valve Assembly & Bracket
    GM1985561Courtesy of GENERAL MOTORS COMPANY
  10. Inspect the turbocharger wastegate regulator solenoid hoses for damage. Replace the hoses if necessary.
  11. Inspect the turbocharger wastegate regulator solenoid valve assembly (2) and bracket (1). Replace if necessary.
  12. Fig 4: View Of Turbocharger Air Bypass Diaphragm Assembly
    GM1985562Courtesy of GENERAL MOTORS COMPANY
  13. Inspect the turbocharger air bypass diaphragm assembly (2), valve cover (1), and valve spring (3). Replace if necessary.
  14. Fig 5: PVC Components
    GM2146357Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not remove the PCV hose from the fitting as damage to the hose will occur.

  15. Inspect the positive crankcase ventilation (PCV) O-ring (2) for damage. Replace the O-ring if damaged or leaking.
  16. Inspect the PCV hose and PCV fitting (1) for damage. Replace the camshaft cover if damage to the PCV hose or fitting is present.