Q: How are engine and transmission mounts installed and checked on Nissan Armada?A: There are two engine mounts and one transmission mount installed on the vehicles, with the engine mounts located on the passenger and driver's side, attached to the engine block and each frame rail, while the transmission mount is positioned at the rear of the transmission and the transmission crossmember. To check the mounts, the engine must be raised slightly to remove the weight from them, and the vehicle should be securely supported on jackstands, with the engine/transmission supported from above using a hoist or three-bar support fixture. Inspect the mounts for any cracks, hardening, or separation of the rubber from the bushing, and check for relative movement between the mounts and the engine or frame, using a large screwdriver or prybar; if movement is detected, lower the engine and tighten the mount fasteners. For replacement, disconnect the cable from the negative terminal of the battery, set the parking brake, and block the rear wheels. Raise the front of the vehicle and support it securely on jackstands, then remove the splash shields from underneath. With the engine supported from above, raise it just enough to relieve the weight on the mounts, then remove the engine mount insulator bolt and the engine mount bracket bolts from below. In the engine compartment, remove the two upper engine mount insulator-to-frame bolts, noting that removing the air filter housing can facilitate access to the left side bolts. Installation follows the reverse order of removal, ensuring the metal heat shield is in place between the insulator and the engine bracket, applying thread locking compound to the mount nuts before installation, and tightening them to the specified torque.