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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 >> Intake Manifold Cleaning and Inspection

Intake Manifold Cleaning and Inspection

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  1. GM5375895Courtesy of GENERAL MOTORS COMPANY

    Clean the intake manifold mating surfaces.

  2. Inspect the intake manifold for damage. (1)
  3. Check that the locating pins (2, 4, 6) are not broken.
  4. Inspect the intake manifold for cracks and fractures.
  5. Clean the throttle body sealing surface. (5)
  6. Clean the intake manifold to cylinder head sealing surface (3).
  7. Replace the intake manifold as necessary.