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Home >> GMC >> 2016 >> Terrain SL, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine Mechanical - 3.6L (LFX) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Camshaft Cover Cleaning and Inspection >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Inspect each camshaft cover for the dents or damage to the exterior. A dented or damaged camshaft cover may:
    • Leak engine oil
    • Affect crankcase ventilation
    • Interfere with the camshafts
    • Interfere with the ignition coil sealing
    • Allow water or condensation to enter the engine
    2. Fig 1: Inspecting Exterior Of Left Camshaft Cover
    GM1992536Courtesy of GENERAL MOTORS COMPANY
  2. Inspect the exterior of the left camshaft cover for the following conditions:
    • Damage to the camshaft cover bolt holes (1)
    • Damage to the oil fill hole (2)
    • Damage to the mounting holes (3) for the ignition coil assembly and fuel injector sight shield ballstud.
    • Damage to the positive crankcase ventilation (PCV) hose connector (4)-A damaged PCV hose connector is replaceable.
    3. Fig 2: Inspecting Interior Of Left Camshaft Cover
    GM1992538Courtesy of GENERAL MOTORS COMPANY
  3. Inspect the interior of the left camshaft cover for the following conditions:
    • Gouges or damage to the camshaft cover sealing groove (1)
    • Damaged, loose or missing baffle fasteners (2)
    • Damaged, loose or missing baffle (3)
    • Gouges or damage to the spark plug shield seal bore (4)
    • Restrictions to the ventilation system (5)
    4. Fig 3: Inspecting Exterior Of Right Camshaft Cover
    GM1832353Courtesy of GENERAL MOTORS COMPANY
  4. Inspect the exterior of the right camshaft cover for the following conditions:
    • Damage to the PCV orifice (1)-A damaged PCV orifice can be replaced. Refer to PCV Orifice Replacement.
    • Damage to the mounting holes (2) for the ignition coil assembly
    • Damage to the camshaft cover bolt holes (3)
    5. Fig 4: Inspecting Interior Of Right Camshaft Cover
    GM1832354Courtesy of GENERAL MOTORS COMPANY
  5. Inspect the interior of the right camshaft cover for the following conditions:
    • Restrictions to the ventilation system (1)
    • Gouges or damage to the spark plug shield seal bore (2)
    • Gouges or damage to the camshaft cover sealing groove (3)
  6. Repair or replace the camshaft cover or covers as necessary.
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