There are three powertrain mounts on the vehicles; left and right engine mounts attached to the engine block and frame, and a rear mount attached to the transmission and frame. 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. Raise the vehicle and support it securely on jackstands, then position a jack under the engine oil pan with a large wood block between the jack head and the oil pan, carefully raising the engine just enough to take the weight off the mounts. Check for relative movement between the inner and outer portions of the mount using a large screwdriver or prybar; if movement is noted, lower the engine and tighten the mount fasteners. Inspect the mounts for cracked, hardened, or separated rubber, indicating a need for replacement, and apply rubber preservative to slow deterioration. Disconnect the cable from the negative terminal of the battery, remove the Radiator Fan and shroud, and raise the front of the vehicle securely on jackstands. Support the engine with a lifting device from above, ensuring not to connect it to the intake manifold, and raise the engine just enough to relieve the weight on the engine mounts. For 2WD models, remove the engine mount-to-frame support bracket through-bolt, then the mount-to-engine block bolts, and remove the mount and heat shield if equipped. Place the heat shield and new mount in position, install and tighten the mount-to-engine block bolts securely. For 4WD models, remove the engine skidplate, support the front axle with a floor jack and jackstands, and lower the front axle for additional clearance. Remove the front crossmember and the bolts attaching the front axle to the frame, then remove the engine mount-to-frame support bracket through-bolt and the engine mount to engine support bracket bolt and nuts. Install the new engine mount onto the engine support bracket and tighten the bolts securely. After installing the engine mounts onto the engine, lower the engine while guiding the engine mount and through-bolt into the frame support bracket, then install and tighten the through-bolt nut securely. The remainder of the installation follows the reverse order of removal, after which the engine hoist and jackstands can be removed, and the vehicle lowered.
