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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LT >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Engine Mechanical - 5.3L (L83) Or 6.2L (L86) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Automatic Transmission Flex Plate Cleaning And Inspection

Automatic Transmission Flex Plate Cleaning And Inspection

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban, and 2018 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Ring Gear Teeth
    GM1658199Courtesy of GENERAL MOTORS COMPANY
  1. Clean the flex plate in solvent.
    2. WARNING:

    Refer to Safety Glasses and Compressed Air Warning .

  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
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