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 the drive line components. To check the mounts, raise the engine slightly to remove the weight from them, then 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 rubber or separation from the metal casing, indicating a need for replacement, and apply rubber preservative to slow deterioration. For replacement, disconnect the cable from the negative terminal of the battery, remove the engine cooling 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 from the mounts. For 2WD models, remove the engine mount-to-frame support bracket through-bolt, the mount-to-engine block bolts, and then 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. For 4WD models, support the front axle with a floor jack and jackstands, remove the engine skid plate, front crossmember, and bolts supporting the engine mount to the front axle, then remove the engine mount-to-frame support bracket through-bolt and 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.
