You remove the entire fan frame, then remove the fans from the frame. There are four small radially oriented bolts that hold the fan frame to the radiator support - two about 45 degree above the horizontal and two 45 degrees below.

It's best to remove the front bumper assembly first. It's easy. There are four nuts that hold the bumper to the frame horns, and two small bolts that hold the bumper surrounds to a bracket that you access from the wheel wells.

The bumper assembly is actually quite light because the structural member under the cover is aluminum. You should be able to get enough slack in the temp sender wire to lay the bumper down on a couple of boxes right in front of the car.

Duke