Oldsmobile 10056753 Strut Assembly, Engine Mount

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

To inspect the front mount, raise the engine slightly to create tension on the rubber mount using a hoist or jack placed under the forward edge of the oil pan. Check for heat cracks on the hard rubber surface, rubber separating from the metal plate, or splits through the center.

If movement is noted, lower the engine and tighten the mount fasteners, and consider applying rubber preservative to slow deterioration.

Yes, for the upper mount strut, disconnect the negative battery cable again and remove the bolts and nuts from the strut and brace, ensuring the lockout feature is off if necessary.

If movement is detected, lower the engine and tighten the mount fasteners.

Applying rubber preservative can help slow deterioration.

To check the mounts, the engine must be raised slightly to relieve weight from them. Begin by raising the vehicle and securely supporting it on jack stands, then position a jack under the engine oil pan with a large block of wood in between. Carefully raise the engine just enough to take the weight off the mounts, ensuring no part of the body is placed under the engine when it is only supported by a jack. Inspect the mount insulators for movement; if any is noted, lower the engine and tighten the mount fasteners. Applying rubber preservative to the insulators can help slow deterioration.