Highlander Whining Noise

mike342

Purchased a 2010 AWD Highlander, There is a whining noise coming from the rear end, possibly the differential. Is this normal in all Highlanders? If not can someone tell me what can be done to solve the problem.

Thanks

Mr_Shiftright

Could be some wear to the ring and pinion set---and if this occurs on acceleration rather than deceleration, it probably means your gear set is out of alignment and/or has some rough gear surfaces.

You might check the differential fluid level, and even change it out for perhaps a Redline synthetic.

http://www.redlineoil.com/Products.aspx?pcid=4

It's possible this condition could stabilize for quite a long time. Draining the fluid might also tell you if something really serious is happening in there (metallic debris in the oil).

There is no quick cure for this, you just have to live with it and monitor it

rusty_cage

How old are your tires? I have ran into this issue and almost let a mechanic change wheel bearing before I guy gave me this tip. since then I have seen the issue twice more and in both tires made the difference

mike342

Noise was present before and after I installed new tires. When I lift foot off accelerator the whining noise stops.

Thanks for the response.

rusty_cage

So the noise is present when u press accelerator but id gone while coasting?

mike342

yes.