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Automatic Transmission Flex Plate Cleaning and Inspection

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Inspecting Flex Plate
    GM1967322Courtesy of GENERAL MOTORS COMPANY
  1. Clean the flex plate in solvent.
  2. Dry the flex plate with compressed air.
  3. Inspect the flex plate for the following conditions:
    • Damaged ring gear teeth (1)
    • Stress cracks around the flex plate-to-crankshaft bolt hole locations (2)
    • NOTE:

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

    • Welded areas (3) that retain the ring gear onto the flex plate for cracking