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Home >> GMC >> 2018 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Mechanical - 1.6L (LH7) Diesel) >> Repair Instructions - Off Vehicle >> Camshaft And Housing 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: Camshaft Cover Exterior
    GM3283925Courtesy of GENERAL MOTORS COMPANY
  2. Inspect the exterior of the camshaft cover (1) for the following conditions:
    • Damage to the camshaft cover bolt holes
    • Damage to the camshaft cover injector bracket bolt holes
    3. Fig 2: Camshaft Cover Interior Inspection Points
    GM3283926Courtesy of GENERAL MOTORS COMPANY
  3. Inspect the interior of the camshaft cover (1) for the following conditions:
    • Inspect the camshaft cover for cracks, casting imperfections or damage
    • Inspect the camshaft cover sealing (3) and the fuel injector sealing (4) for cracks or damage
    • Inspect the camshaft cover bolts (2) for flawless thread
    • Inspect the positive crankcase oil separator valves (5) for cracks or damages
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