See my vehicle specs below? When I accelerate and hold my speed passengers in the back of the car complain of a “whining” sound. It’s loud and I feel bad that my 2 year old has to hear it. I hear the whining sound from 10-100 mph. My cousin owns an auto shop and we went to dinner with me the other day and he noticed it but said it is not my wheel bearings because I would feel a shutter in my steering. He didn’t know what it was but also didn’t have time to look at it. Should I replace diff fluid or something? Thanks for the help in advance.

Does anyone one else have this issue?

Thanks, will check that today.

Checked my brakes this weekend and they are good. Wish this was the issue.

Thank you Reorge. I will rotate my tires on Tuesday if not, will get bearings. Do you have a link for how to complete the job?

Today I had my scheduled visit to the dealership and all turned out ok. For the record, bought my car in March of 2013 and the car has 54,000 as of this morning. This means my car is still under the factory powertrain warranty.

I called the dealer parts department on Monday asking if they had 2 wheel bearing hub assemblies in stock. The reason, I pulled the wheels off in the rear, along with calipers to spin the hub freely to learn if they were bad, which they were (rear driver and passenger sides both had a bad grinding noise). They only had 1 in stock, I then proceeded to schedule a service to have this looked at.

On my drive into the dealer today I used an SPL meter app to understand how loud it was in the cabin while driving on the highway 65-80 mph. I was shocked it was 115db which is terrible for hearing loss. When I told this info to the advisor and showed him videos of my bad bearings, he knew they needed to fix the issue. Remember...they only had 1 hub in stock.

After 4 hours in the waiting room, the advisor comes out and says, we are all done, let’s go for a drive. I have him drive and I jump in the backseat to test the noise level with the SPL app and after the repair it was now 85db at the same speeds. Still a bit loud but dramatically quieter then before, still too loud however. I then asked, did you replace both, he said nope, only the passenger rear. I asked why. He said the other wasn’t bad and he immediately knew I was going to go back to the facts/video. He didn’t have a response and then I said to him...is this because you only had one unit in stock and he looked stunned that I knew this. He said, yes. I said then why didn’t you just say that instead of giving me the runaround? Long and short, they fixed one and I’m happier then before but need to schedule an appointment another day to fix the driver rear.

I also had them complete the tranny software update and WOW gears 1-3 are SO SMOOTH. It was a good day, found my problems and I wanted to say thanks to this crew! Looking forward to another 54,000 trouble free miles in our TL. For fun, I washed, waxed, and conditioned the leather in my car this afternoon.

Thanks,
George