Engine mounts seldom require attention, but broken or deteriorated mounts should be replaced immediately to prevent damage or wear on driveline components. During the check, the engine must be raised slightly to remove the weight from the mounts. To do this, raise the vehicle and support it securely on jackstands, then position a jack under the engine oil pan with a large block of wood between the jack head and the oil pan, carefully raising the engine just enough to relieve the weight on the mounts. Inspect the mounts for any cracks, hardened rubber, or separation from the metal plates, noting that the rubber may split down the center. Check for any relative movement between the mount plates and the engine or frame using a large screwdriver or pry bar; if movement is detected, lower the engine and tighten the mount fasteners. Applying rubber preservative can help slow deterioration. For replacement, disconnect the negative battery cable, raise the vehicle, and support it securely on jackstands if not already done. Remove the nut to disconnect the mount from the frame, and for automatic transmission models, disconnect the shift linkage. Raise the engine slightly with a jack or hoist, ensuring the fan does not hit the radiator or shroud, then remove the mount-to-block bolts and detach the mount. Installation follows the reverse order of removal, using thread locking compound on the mount bolts and ensuring they are tightened securely.