Lucerne V6-3.8L (2007)
Transmission Mount: Testing and Inspection
4T80-E Transmission Mount Inspection
Transmission Mount Inspection
Inspection Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
Important: Before replacing any transmission/transaxle mount due to suspected fluid loss, verify that the source of the fluid is the
transmission/transaxle mount, not the engine, transmission/transaxle or accessories.
Notice: 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.
2. Raise the transmission/transaxle in order to create a slight tension in the transmission mount.
3. 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:
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The hard rubber surface is covered with heat check cracks.
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The rubber is separated from the metal plate of the transmission/transaxle mount.
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The rubber is split through the center of the transmission/transaxle mount.
4. When replacing the transmission mounts or transmission brackets refer to the following procedures:
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Transmission Mount Replacement - Left Side.
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Transmission Rear Mount Replacement.
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Transmission Mount Bracket Replacement - Left Side.
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Transmission Rear Mount Bracket Replacement.
5. 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. Refer to Fastener Tightening Specifications.
6. For information on the engine mounts, refer to Engine Mount Inspection - 4.6L. See: Engine, Cooling and Exhaust/Engine/Drive Belts, Mounts,
Brackets and Accessories/Engine Mount/Testing and Inspection
