Chevrolet 17983984 Mount,Engine

To access and inspect the motor and transmission mounts, raise the car and support it with jack stands. Push upward and pull downward on the motor and transmission case to check the mounts. If the case can be pushed upward but not pulled down, it indicates worn rubber and a bottomed-out mount. If the rubber separates from the metal plate, the mount needs replacement. Replace any mount with hardened or cracked rubber. Ensure all attaching nuts or bolts are tight.

To check the transaxle mounts, raise the vehicle and secure it on jackstands, then observe the mount while an assistant manipulates the transaxle or use a pry bar to test for movement; if the rubber separates from the metal plate or if the case only moves up, replacement is necessary. Begin the replacement by disconnecting the negative battery cable and supporting the transaxle with a jack. For the forward transaxle mount, remove the bolts connecting the forward support bracket to the transaxle, then take off the mount-to-support bracket nut and the mount-to-cradle nuts, followed by the removal of the forward support bracket and the mount itself. Position the new mount and install the mount-to-cradle nuts loosely, then place the transaxle support bracket and install the mount-to-support bracket nut and the bracket-to-transaxle bolts loosely. Ensure all mounting hardware is loose, lower the jack until the transaxle centers the mount, and then tighten the hardware to the specified torque before reconnecting the negative battery cable. For the rear transaxle mount, repeat the process of disconnecting the negative battery cable and supporting the transaxle, then remove the rear support bracket-to-transaxle bolts, the mount-to-support bracket nut, and the mount-to-cradle bolt nuts, followed by the support bracket and the mount. Install the new mount and secure the mount-to-cradle bolt nuts loosely, then position the rear support bracket and install the mount-to-support bracket nut and bracket-to-transaxle bolts loosely. Again, ensure all mounting hardware is loose, lower the jack until the transaxle centers the mount, tighten the rear mounting hardware to the specified torque, and reconnect the negative battery cable.

To check the transaxle mount, raise the vehicle and secure it on jackstands. Observe the mount while an assistant manipulates the transaxle or use a pry bar to lever it up and down. If the rubber separates from the metal plate or if the case moves up but not down, replacement is necessary. If there is movement between the metal plate and its attachment point, tighten the bolts or nuts. For wear assessment of the forward transaxle mounting assembly insulator, insert a large screwdriver or prybar between the transaxle and the crossmember and attempt to lever the housing; movement indicates the insulator rubber is worn and requires replacement. The same procedure applies to the rear transaxle mounting assembly. For replacement, disconnect the cable from the negative battery terminal and support the transaxle with a jack. Remove the forward support bracket-to-transaxle bolts, the mount-to-support bracket nut, and the mount-to-cradle nuts, followed by the removal of the forward transaxle support bracket and the mount itself. Position the new mount and install the mount-to-cradle nuts finger tight, then place the transaxle support bracket and install the mount-to-support bracket nut and the bracket-to-transaxle bolts finger tight. Ensure all mounting hardware is loose, lower the jack until the transaxle centers the mount, and then tighten the hardware to the specified torque before reconnecting the negative battery cable. For the rear transaxle mount, repeat the disconnection of the negative battery cable and support the transaxle, then remove the rear support bracket-to-transaxle bolts, the mount-to-support bracket nut, and the mount-to-cradle bolt nuts, followed by the removal of the support bracket.

Yes, general instructions are provided on how to raise the engine sufficiently to replace the mounts.

It is important to secure the vehicle because some jostling is necessary to check the mounts.

They need to be replaced, which can be done with the engine/transmission still in the vehicle.

For the rear mount replacement, raise the engine to relieve weight. Remove the bolts attaching the crossmember to the mount, and then take out the mount-to-transmission bolts before removing the engine mount. Finally, install the new mount on the transmission, aligning and starting the crossmember-to-mount bolts while lowering the transmission onto the mount, and torque-tighten the bolts.

No, the engine and transaxle mounts are non-adjustable and typically do not require service.

They must be replaced, which can be done with the engine/transaxle assembly in the vehicle.