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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 1.2L (LIH)) >> Repair Instructions >> Compressor Air Intake Turbocharger Installation

Compressor Air Intake Turbocharger Installation

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Special Tools

Equivalent regional tools: Special Tools 

  1. GM5425121Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Observe the identification and alignment marks on the vacuum hose end (1). These marks indicate which end matches the turbocharger (TC); and alignment of the vacuum hose at the turbocharger housing (2).

    Positive Crankcase Ventilation Vacuum Hose (3) @ Compressor Air Intake Turbocharger - Install NEW

  2. GM5425122Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The hose clamps come loosely installed on the NEW positive crankcase ventilation vacuum hose. The hose clamps can be re-positioned when necessary.

    Observe the orientation of the hose clamp and ensure the EN-52875  Positive Crankcase Ventilation (PCV) Hose Clamp Installer will have sufficient room to engage and rotate to secure the hose clamp.

  3. Install EN-52875  Positive Crankcase Ventilation (PCV) Hose Clamp Installer handle (3) onto the NEW positive crankcase ventilation vacuum hose clamp (1).
  4. Install EN-52875  Positive Crankcase Ventilation (PCV) Hose Clamp Installer ratchet (2) into the handle (3), and engaging the hose clamp (1).
  5. Press down on the EN-52875  Positive Crankcase Ventilation (PCV) Hose Clamp Installer thumb lever (4) to lock and engage the ratchet (2).
  6. GM5425123Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The hose clamp is properly tightened when the ratchet becomes more difficult to turn, and the hose clamp band compresses flush with the positive crankcase ventilation vacuum hose.

    Holding the EN-52875  Positive Crankcase Ventilation (PCV) Hose Clamp Installer (1) steady with one hand, use the ratchet (2) to tighten the positive crankcase ventilation vacuum hose clamp.

  7. GM5425124Courtesy of GENERAL MOTORS COMPANY

    Once the positive crankcase ventilation vacuum hose clamp is suitably tightened, rotate the entire EN-52875  Positive Crankcase Ventilation (PCV) Hose Clamp Installer (1) upwards, approximately 90 degrees.

  8. Holding the EN-52875  Positive Crankcase Ventilation (PCV) Hose Clamp Installer upward, rotate the bottom lever (2) downwards to cut the excess clamp band.
  9. NOTE:

    The cut edges of the hose clamp band may be sharp. Observe the end of the hose clamp band. Cut additional band if too much excess band still remains.

  10. Using a suitable tool, bend the hose clamp band backward and down against the hose clamp.
  11. GM5263544Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Heat Shield (2) - Install NEW

  12. CAUTION:

    All components at turbocharger side of oil feed pipe must be free of oil to ensure that proper torque is reached when tightening bolt at the turbocharger. Failure to ensure components are free of oil can result in over torque of fastener and damage to either fastener or turbocharger.

    NOTE:

    Ensure all components, including threads in turbocharger at turbocharger side of oil feed pipe, are clean and free of debris. If necessary, clean all components with Low VOC brake cleaner or equivalent. Avoid allowing excessive cleaner to enter turbocharger.

  13. Turbocharger Oil Feed Pipe Washer (3) - Install NEW
  14. Compressor Air Intake Turbocharger (1) - Install
  15. Turbocharger Nut (4) - Install NEW - Do NOT tighten. [4x]
  16. GM5263540Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube (3) @ Turbocharger - Install

  17. Turbocharger Heat Shield Bolt (2) - Install - Do NOT tighten.
  18. Turbocharger Oil Feed Pipe Bolt (1) - Install - Do NOT tighten.
  19. Fig 1: Identifying Turbocharger Nuts With Tightening Sequence
    GM5300688Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Nut (1) - Tighten in sequence [4x]

    1. First Pass: 15 N.m (11 lb ft)
    2. Second Pass: 20 N.m (15 lb ft)
    3. Final Pass: 60 degrees - Use the EN-45059-A  Angle Meter
  20. GM5263540Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Heat Shield Bolt (2) - Tighten 8.5 N.m (75 lb in)

  21. Turbocharger Oil Feed Pipe Bolt (1) - Tighten 32 N.m (24 lb ft)