A method for coupling components of a fluid sensor assembly for a vehicle, the method comprising the steps of providing a body portion of a fluid sensor assembly with a joining section that has a mating surface, providing a head portion of a fluid sensor assembly with a joining section that has a mating surface, introducing the mating surface of the body portion joining section to the mating surface of the head portion joining section to define a overlapping configuration, providing a first magnetic field that opposes a second magnetic field to produce a force field, exposing the overlapped configuration to the force field that surpasses both joining sections' material yield strength without causing either joining section's material to flow and coupling together the mating surfaces of both joining sections of the overlapped configuration with the force field to form a fluid sensor assembly.