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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> ENGINE MECHANICAL - 4.8L, 5.3L, AND 6.0L (3 Of 4) >> Off-Vehicle Repair Instructions (Part 2) >> Electric Machine Cleaning and Inspection

Electric Machine Cleaning and Inspection

    CAUTION: Refer to Safety Glasses Caution .
  1. Clean the flex plate, stator and rotor with compressed air.
  2. Inspect the flex plate (1) for stress cracks around the flex plate-to-rotor bolt hole locations.
    Fig 1: Inspecting Flexplate, Stator & Rotor Damaged Areas
    GM1277117Courtesy of GENERAL MOTORS CORP.
  3. Inspect the stator for the following conditions:
    • Rust or corrosion at the electrical terminal connection or the electrical windings (2 and 3)
    • Scoring or gouging in the electrical winding surfaces (3)
    • Bent or damaged stator
    • Damage to the exterior of the housing and/or coolant jacket
  4. Inspect the rotor for the following conditions:
    • Rust or corrosion of the electrical windings (4)
    • Scoring or gouging in the electrical winding surfaces
    • Bent or damaged rotor
    • Stress cracks around the rotor-to-crankshaft bolt hole locations (5)
  5. Inspect the electrical terminal studs and the electrical connection for corrosion.