Nissan 21060-ZQ50A Cooling Fan

Open the air intake between the throttle body and air filter, then take out the bottom shield beneath where the engine sits. Before working on the vehicle, take off the round hoses connected to the transmission fluid cooler and also remove the lower radiator cover. Unfasten, but don't take out, the bolts that hold the Radiator fan pulley in place, and then detach the drivebelt. Unbolt the fan, and take out the fan blades, letting the fan and clutch lower through the bottom. Before lifting your vehicle, raise it on jackstands while keeping the ignition key off for models with rear-auto leveling suspension. Look each fan blade for cracks or breaks, and get a new one if you find any. Look closely at the fan clutch for fluid dripping and any resistance when you turn the piece, and check the engine's fan bracket by spinning the bearing for signs of smoothness and freedom of movement. Replace the fan bracket/rotating bearing if it shows any problems. When removing the fan from the clutch, remember to put the "F" mark on the fan hub facing forward when reattaching it. Begin by removing the radiator grille and front bumper. Turn off the electric fan's power and unscrew its mounting bolt. Then take out the fan assembly. To put the fan and clutch back together, put a bit of torque into the nuts that hold them down while checking that all mounting screws are tight.

The initial steps involve removing the air intake duct between the throttle body and the air filter housing, removing the engine splash shield beneath the front of the vehicle, and disconnecting the automatic transmission fluid cooler hoses.