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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 270 (Engine Mechanical - 4.8L, 5.3L, 6.0L Or 6.2L (3 Of 5)) >> Off-Vehicle Repair Instructions (1 Of 3) >> Crankshaft And Bearing Cleaning And Inspection >> Cleaning Procedure

Cleaning Procedure

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    Fig 1: Oil Passages & CKP Reluctor Ring Teeth
    GM1402145Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: 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. CAUTION: Refer to Safety Glasses Caution .
  3. Dry the crankshaft with compressed air.
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