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Bad vibration at low braking speeds 850

Hello, I own an 95' 850 turbo and have had the most frustrating experience recently. A little history first. In February of this year I had my front pads replaced and rotors turned. I began hearing a noise soon after and returned the car to the mechanic only to be told that they couldn't find anything. Soon afterwards, I began to get a vibration/groan that became present when stopping. This would really only be noticed at speeds of under 30 miles/hr., but most evident when rolling gently to a complete stop. Months later, my ABS light began coming on and the sound became worse. The initial mechanic still found nothing wrong with the brakes but noticed the front passenger side need a new drive shaft. We replaced the shaft and the car still made noise. The mechanic then told me he couldn't check the ABS so I went to a Volvo technician. The Volvo mechanic noticed a bad ABS module/relay and front right tie-rod, along with the front right pad not gripping the rotor correctly. This caused the rear rotors to become warped from overcompenating. This had to be causing the vibration and groaning sound when stopping right? Now we're already at $1850. All four rotors were replaced along with new pads and calipers checked. Still vibrates/groans to a stop. The mechanic, who works on BMW's, Benz' and Volvo's has never heard anything like it and is out of ideas. He's pissed too, but is sure the brakes have been eliminated as a problem. The problem never occured when the car was on the rack bearing no load. I tested it this evening and found that it happened when going forward, but not in reverse. What's up with this? Is this a transmission deal or what could it be? Mind you, it only occurs or is noticed at very slow speeds and when applying the brakes.

Please help from anyone, I've owned this car for 2 yrs now and it had a perfect maintainence record and I've now averaged almost $100 per month in repair/upkeep.

regards,

Andy






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New Bad vibration at low braking speeds [850]
posted by  kurzrep  on Wed Sep 24 14:35 CST 2003 >


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