Hey all! I have a 2018 Pathfinder with about 40k miles on it, and I'm stumped. A low rattle/rumble started a while ago, and it's only on when the climate system fan is on, so I suspected the blower motor, but have since discovered that it's not the blower motor. I have full function of the motor at all fan speeds, and changing the fan speed doesn't affect the noise, so I don't think it's the motor or the resistor. The strange thing is that I can run the fan without any issues, until I turn while driving. Once I turn, the rumbling starts and doesn't go away until I turn the fan off. I can turn the fan on when driving in a straight line and have no issues. Anyone else ever have this issue or have any ideas on what the solution could be?