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Home >> Hummer >> 2007 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 1805 (Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L - Repair Instructions - Off Vehicle (1 Of 3)) >> Crankshaft and Bearing Cleaning and Inspection >> Cleaning Procedure

Cleaning Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Oil Passages & CKP Reluctor Ring Teeth
    GM1402145Courtesy of GENERAL MOTORS CORP.
    NOTE: Use care when handling the crankshaft. Avoid damage to the bearing surfaces or the lobes of the crankshaft position (CKP) reluctor ring. Damage to the teeth of the CKP reluctor ring may affect on-board diagnostics (OBD) II system performance.
  1. Clean the crankshaft with solvent.
  2. Thoroughly clean all oil passages (2) and inspect for restrictions or burrs.
    3. WARNING: Refer to Safety Glasses Warning .
  3. Dry the crankshaft with compressed air.
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