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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Automatic Transmission - 6L80 (MYC) Or 6L90 (MYD) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Transmission Mount Inspection

Transmission Mount Inspection

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban 3500 HD, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

In order to avoid oil pan damage and possible engine failure, insert a block of wood that spans the width of the oil pan bottom between the oil pan and the jack support.

  1. Raise the transmission/transaxle in order to remove the weight from the transmission/transaxle mount and create slight tension in the rubber.
  2. Observe the transmission/transaxle mount while raising the transmission/transaxle. Replace the transmission/transaxle mount if the transmission/transaxle mount exhibits any of the following conditions:
      NOTE:

      Black paint on the rubber will crack with time, this does not constitute a failure.

    • The hard rubber surface is covered with heat check cracks.
    • The rubber is separated from the metal plate of the transmission/transaxle mount.
    • The rubber is split through the center of the transmission/transaxle mount.
  3. If there is movement between the metal plate of the transmission/transaxle mount and its attaching points, lower the transmission/transaxle on the transmission/transaxle mount. Tighten the bolts or nuts attaching the transmission/transaxle mount to the frame or transmission/transaxle mount bracket.
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