Another humming noise thread
Not sure if I should worry or not. 2007 4wd automatic, full option, 87k miles. At slow speeds on a very smooth road, say 30-35 mph, I get a very very quiet humming or howling noise. I had been told by another fj driver that the roof rack makes a noise like that. I have also read that the diffs can make a noise,, and that the "bearings" can make some noise. Questions: Which bearings tend to hum or howl? Diff bearings?? wheel beasrings?
This car is fairly quiet except for exhaust burble when driving so its hard to catch the sound, as it only happens when there is no road noise to cover it up, like on a very smooth road. Its such a slight sound that I could not capture it with a phone recording, and when I mention it, my passengers think im crazy as they cant hear it.
Unfortunately, I have very sensitive hearing, and can distinguish slight and far off sounds.
I cant make out if its wind noise, tire howl, bearing noise, diff noise, Air leaking into the cabin from a window seal? It does seem to go away when i turn the steering at said speed, then returns when traveling straight.
It really only happens on a couple of local roads that are smooth and slow. On normal crappy roads with bad grooves, repair seams, bumps, chip seal texture,, its not noticeable. With other traffic around, its too quiet to hear. Only at moments of slow quiet zen, when car road and driver are 1 does this ever so slight howl hum make itself known!