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 jackstands, 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.
Warning: DO NOT place any part of your body under the engine when it’s supported only by a jack!
4. Check the mount insulators to see if the rubber is cracked, hardened or separated from the metal in the center of the mount.
5. Check for relative movement between the mount 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. Disconnect the cable from the negative terminal of the battery (see Engine electrical systems). Raise the vehicle and support it securely on jackstands (if not already done). Support the engine as described in Step 3.
2WD models
8. Remove the through-bolts (see illustrations), raise the engine with the jack and detach the mount from the frame bracket and engine.
16.8a Location of the right side engine mount through-bolt
16.8b Location of the left side engine mount through-bolt
9. Install the new mount, making sure it is correctly positioned in the bracket. Install the fasteners and tighten them securely.
4WD models
10. Remove the skidplate from below the engine compartment.
11. Remove the engine crossmember.
12. Remove the engine oil filter (see Tune-up and routine maintenance).
13. Install an engine hoist (see 3.6L V6 engine) and raise the engine slightly to take the weight off the engine mounts.
14. Use a floor jack to support the front axle.
15. Remove the engine mount through-bolts.
16. Remove the bolts that attach the engine mounts to the front axle assembly.
17. Lower the front axle slightly.
18. Remove the bolts that attach the engine mounts to the engine block.
19. Remove the engine mount from the vehicle.
20. Install the new mount, making sure it is correctly positioned in the bracket. Install the fasteners and tighten them securely.