Hi guys,

I have a 2008 Honda Accord 3.5 V6 Auto, and it has 137,000 KM.

Car has been well maintained, all servicing/maintenance up to date .

However, I have had this Annoying Humming/ Growling Sound for 6 months, 20,000km + now. It is a speed dependent Hum that increases Pitch with speed. It begins from 55KM/H.

I took it to the mechanic/s, one suggested Tires, so I replaced tires. And the noise remained, I got him to look over again and he couldn't fault it and claimed he couldn't hear it that well. Also had full allignment and Balance.

So I took it to a suspension specialist, They Said my Front Left wheel bearing was the cause. So I replaced both front wheel bearings at my mechanic. Aswell as front Brake Pads and Rotors. Greased Caliper Slides etc.

That didn't Fix it.

Now, I do believe it does quieten down when performing a left turn/ bend at speed 65 - 85KM/H. But it doesn't worsen when going right.

Could it be rear wheel bearings?

So now I'm stumped as to what this could be.

A few little things that could be related are that, my car does go to the left at Highway Speed's.

And I think I have a VERY, Very Slight vibration through my footwell. But could just be road feel.

I was informed that my control arm bushings are beginning to show signs of wear. But not needing replacement just yet.

This has been annoying me for a very long time! I really want it fixed but don't want to throw money at parts.

I will be taking it for further diagnosis, but am just after some thoughts from some of you guys.

Sorry for the long winded post and I hope you can make sense of it!

🙂