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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1056 (Engine Mechanical - 4.8L, 5.3L & 6.0L (Repair Instructions - 2 Of 3)) >> Repair Instructions (Off-Vehicle Repair Instructions Part 2) >> Crankshaft and Bearings Cleaning and Inspection >> Cleaning Procedure

Cleaning Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: 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. Fig 1: View Of Crankshaft
    GM156153Courtesy of GENERAL MOTORS CORP.
  2. Thoroughly clean all oil passages and inspect for restrictions or burrs.
    3. CAUTION: Refer to Safety Glasses Caution in Cautions and Notices.
  3. Dry the crankshaft with compressed air.
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