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Discussion Starter · #1 ·
What I "thought" was tire noise from a recent four wheel alignment and all new struts/shocks all around turned out to be:
1. front hub assembly bearings bad causing roaring sound as in mud bog tires.:eek:
2. rear "ghost walking". When hitting bumps/potholes/chuckholes in the roadbed on right side, car would pitch to the side. Turns out to be some sort of strut assembly rod on the rear that attaches to frame of car was worn out allowing car to "wander" all over the road.

Check these things out if your car is making weird noises too.:cool:
 

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I am trying to diagnose a strange. Tire noise that I am experiencing. I was leaning towards a CV joint, but I don't know. How did you determine it was the front hub assembly bearings? p { margin-bottom: 0.08in; }I have a 2002 XC70. The car makes a noise that increases and decrease with acceleration and deceleration. The noise is clearly tied to the speed at which the tires rotate and not the actually RPM's of the engine. The noise get worse when you veer left, and goes away when you veer right. I originally thought it was an issue of tire ware because the front end was out of alignment again. I replaced the front tire and had it aligned. That did not stop the noise. I can't find a Chiltons Manual for the car and I don't know how to determine for certain if that is the problem. Any suggestions would be appreciated.
 

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Discussion Starter · #3 ·
I was driving from WV to SC when this all happened. Locally, like you, I replaced all the struts, strut mount bearings, bushings and four wheel alignment twice b/c of right pull and tire noise. This was right before leaving for SC. Here's what they found at a very reputable garage in Columbia:
Strut replacement looked fine. But, the alignment was "out" and tire noise came from this:
They determined that the front hub assembly was bad b/c of severe play in the hub itself. It was very obvious and the fact that the could visibly see the hub bearing was basically shot.
Secondly, upon inspection in the rear of the car, there was some type of large support bushing leading from the strut and onto the main frame of the car(if I remember right). They said it was no wonder it could not be aligned b/c every time they let the car down on its tires, the bushing was so bad that it caused itself to go out of alignment. Understand that my local had a new mechanic working on my car--and they should have known better b/c I "was" a good customer and they knew that I was very particular about my car. The SC garage said they should have seen that easily but did not.
My car actually had a roaring sound as I drove on interstate. It was not pleasant but did NOT go away if I turned one way or the other. I believe a CV joint noise lessens when you turn away from that joint. A bearing goes bad stays bad.
Have you raised the car and tried to move the wheel for excessive play either up and down or side to side? Can you manually spin the wheel and hear anything?
Regardless, repairs were not going to be cheap and I decided to trade it there in SC for a BMW X5. I miss my Volvo though. It was a great car. AND, I have four OEM XC70 wheesl with Firestone winterforce tires mounted up for sale. $400.00 takes all four; you pay shipping or pick up--if you are interested.
Hope all this helps some. It's about all I know about it. Let me know if I can help any more. ;-)
 
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