Toyota 16400-21081
Radiator Assembly

Draining engine coolant must be the first step before you remove engine under covers. The next step is to disconnect the electric cooling fan connector, horn connector, upper radiator hose, lower radiator hose, radiator reservoir hose while also removing the 2 oil cooler hoses when dealing with automatic transmissions. Begin by removing two clips and the radiator cover followed by unscrewing seven (on vehicles without A/C) to nine (with A/C) bolts from the upper radiator supports to extract the radiator assembly and its two radiator support cushions together with grommets. You should disconnect the electric cooling fan from the radiator by unscrewing its 3 assembly bolts. Position the cooling fan on the radiator through its 3 bolts before torquing them to 7.5 Nm (80 kgf-cm, 66 inch lbs.). Append the 2 radiator support cushions and grommets to the radiator before connecting the grommets to body brackets then fasten upper radiator supports with 7 bolts if A/C is absent or utilize 9 bolts when A/C is present. Connect all hoses for the radiator including the upper and lower hoses together with the radiator reservoir hose and also for automatic transmissions connect the two oil cooler hoses with their respective pipes. Also secure the radiator cover using 2 clips before reconnecting the horn connector along with the electric cooling fan connector. Insert the engine under the engine covers before filling the system with engine coolant as you start the engine to check the presence of leaks.

Inspect the fins for blockage.

Care should be taken to avoid applying water directly onto the electronic components.

Ensure the lock plate height is between 7.40 - 7.80 mm (0.2913 - 0.3071 inch), and readjust if necessary.

Drain the engine coolant.

Straighten them using a screwdriver or pliers.

It should be adjusted to 0.2 - 0.3 mm (0.008 - 0.012 inch) to prevent damage.

A small amount of air may remain, which can be resolved by swishing the radiator in water before testing.