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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 >> Positive Crankcase Ventilation Vacuum Hose Installation

Positive Crankcase Ventilation Vacuum Hose Installation

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Special Tools 

EN-52875  Positive Crankcase Ventilation (PCV) Hose Clamp Installer

Equivalent regional tools: Special Tools 

  1. GM5427530Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Observe the identification and alignment marks on the vacuum hose end (3). These marks indicate which end matches the camshaft cover (ENG); and alignment of the vacuum hose at the camshaft cover (1).

    Positive Crankcase Ventilation Vacuum Hose (2) @ Camshaft Cover - Install

  2. GM5427531Courtesy 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. GM5427532Courtesy 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. GM5427533Courtesy 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.