Moderator: volvite
No, I do not.TooMuchControl wrote: ↑Thu Aug 19, 2021 3:31 pmWith the windows up.
When you start, do you hear a whirring sound inside the cab?
It does not sound like radio noise. I would compare it more to an engine on a jetliner gradually spooling up. It does not go up with RPMs.Is the noise similar to let's say the pitch / frequency of radio noise? It goes up with engine RPM and then dies down a bit on the start of the car?
Not at all.When you place the car in gear, with the brake on, do you hear the pitch (in the background) a bit? Something as if the frequency is "above" the engine running?
Yes, the faster the car is moving, the higher the pitch of the noise. If you were to put the car in neutral and turn off the car, the noise would still be there.Or is this something you hear explicitly when moving, in gear, at certain speed.
Nothing obvious? It seems to shift smoothly. Midas told me it was slipping during my routine oil change. But I've never felt it slip? I don't really trust Midas much more than oil changes...
My fault...I didn't clarify. The other day, I was driving at 55mph. I put the truck in neutral and turned off the ignition. Even moving at 55mph, I could still hear the noise.Your last comment states that if you turn the truck off, the noise would still be there (can't be right...right?)
This is exactly the isolating I was looking for. Yet, I didn't even think about turning the Pathfinder into a FWD...LOL! Thanks for advice. I'll try this.If it's the driveshaft - simply remove it. Mark the positions on both ends. If it's isolated, then you have the answer. For me, I would remove the shaft and take a ride.
I'll definitely try this, too.Wheel bearings can be checked by rotating the wheels off the ground and holding the strut spring. It will feel like you are turning a pepper grinder. Just close you eyes, hold the spring, and rotate the wheel. It's surprising effective test.
Yeah, I think I can scratch these off the list.Idler pulley and tensioner would be items that I would suspect, but you state that it's not relative to engine RPMs, which eliminates those for me. Those would certainly pitch up and down with engine RPMS and are known to fail, and are easily tested.
Well, my worrying was all for naught. I performed your pepper-grinder test. That was effective at showing that the right bearing was bad. I replaced it, and all of the evil noises disappeared. I have not heard a wheel bearing sound like that before; however, it's it's all done. It set me back $125; SO much cheaper than I ever dreamed of.TooMuchControl wrote: ↑Mon Aug 23, 2021 2:54 pmAs for the driveshaft..maybe not the best idea....i'm positive it won't work out...
For whatever reason I thought you had performed service on the front shaft, not the rear....
Sorry on that..argh.
Hope you have some luck!