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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Mechanical - 3.0L (Lm2) Diesel - Repair Instructions (5 Of 11)) >> Repair Instructions >> Timing Belt Replacement (F48) >> Cleaning and Inspection Procedure - Required

Cleaning and Inspection Procedure - Required

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  1. GM5044132Courtesy of GENERAL MOTORS COMPANY

    Clean the flex plate (3) in solvent.

    2. WARNING:

    Refer to Safety Glasses and Compressed Air Warning

  2. Dry the flex plate (3) with compressed air.
  3. Inspect the flex plate (3) for the following conditions:
    1. Stress cracks around the flex plate to torque converter mounting bolt hole locations (1) and flex plate to crankshaft (2, 4).
      2. NOTE:

      Do not attempt to repair the welded areas that retain the ring gear to the flex plate. Install a NEW flex plate.

    2. Cracks at welded areas that retain the ring gear onto the flex plate (3)
    3. Damaged or missing ring gear teeth (5)
  4. GM5863028Courtesy of GENERAL MOTORS COMPANY

    Clean the oil pump sprocket (1) surfaces.

  5. Inspect the oil pump sprocket (1) for grooves, scoring, scratches, pitting, or embedded bearing material.
  6. Replace the oil pump sprocket (1) if damaged.
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