Engine mounts — check and replacement

1. Engine mounts seldom require attention, but broken or deteriorated mounts should be replaced immediately or the added strain placed on the driveline components may cause damage or wear.

Check

2. During the check, the engine must be raised slightly to remove the weight from the mounts.

3. Raise the vehicle and support it securely on jack stands, then position a jack under the engine oil pan. Place a large wood block between the jack head and the oil pan, then carefully raise the engine just enough to take the weight off the mounts. Do not position the wood block under the drain plug.

Warning: DO NOT place any part of your body under the engine when it’s supported only by a jack!

4. Check the mounts to see if the rubber is cracked, hardened or separated from the metal plates. Sometimes the rubber will separate from the bushing in the center of the mount.

5. Check for relative movement between the mount plates and the engine or frame (use a large screwdriver or prybar to attempt to move the mounts).

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

Replacement

7. Raise the vehicle and support it securely on jack stands (if not already done). Support the engine as described in Step 3.

8. To remove an engine mount, remove the fasteners, raise the engine and detach the mount. The engine can be raised with an engine hoist, or with a floor jack and wood block placed under the oil pan. Note: Even if only one mount is being replaced, remove the mount-to-engine bracket nut from the other mount (this will allow the engine to be raised far enough for mount removal).

9. Installation is the reverse of removal. Use non-hardening thread locking compound on the mount bolts/nuts and be sure to tighten them securely.