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Home >> Chevrolet >> 2022 >> Tahoe SSV >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Mechanical - 3.0L (Lm2) Diesel - Repair Instructions (1 Of 11)) >> Repair Instructions >> Crankshaft Rear Oil Seal Replacement (2WD) >> Cleaning and Inspection Procedure - Required

Cleaning and Inspection Procedure - Required

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    WARNING:

    Refer to Safety Glasses Warning .

  1. GM5044132Courtesy of GENERAL MOTORS COMPANY

    Clean the automatic transmission flex plate (1) in solvent.

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

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

    3. Cracks at welded areas that retain the ring gear onto the automatic transmission flex plate (3)
    4. Damaged or missing ring gear teeth (5)
  4. GM5845392Courtesy of GENERAL MOTORS COMPANY

    Clean the timing chain lower cover (1).

  5. Clean the timing chain lower cover mating surfaces.
  6. Inspect the timing chain lower cover mating surfaces for damage.
  7. Inspect the crankshaft rear oil seal bore for damage.
  8. Inspect the fuel pump access hole cover (2) for damage.
  9. Replace the timing chain lower cover (1) if damaged.