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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 148 (Engine Mechanical - 4.8L, 5.3L & 6.0L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Crankshaft and Bearings Cleaning and Inspection >> Cleaning Procedure

Cleaning Procedure

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CAUTION: Use care when handling the crankshaft. Avoid damage to the bearing surfaces or the lobes of the crankshaft position reluctor ring. Damage to the teeth of the crankshaft position reluctor ring may effect On-Board Diagnostics (OBD) II system performance.
  1. Clean the crankshaft with solvent.
  2. Thoroughly clean all oil passages and inspect for restrictions or burrs.
    WARNING: Wear safety glasses in order to avoid eye damage.
  3. Dry the crankshaft with compressed air.
    Fig 1: Cleaning Crankshaft
    G02078784Courtesy of GENERAL MOTORS CORP.
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