Date: Wed, 08 May 2002 09:58:26 GMT
From: "Anders Fondal" <>
Subject: SV: "Bumping" on 1985 900i

One possible solution (rather far fetched, but hey...): You may have some sort of imbalance in your brake disc, the squeling you describe suggest that the brake pads are in touch with the disc even when you don't use the brakes. Otherwise: check wheelbearings, and make sure the CV-replacement was done properly. The new part _could_ be faulty, you never know..... Peter Thompson <> skrev i > Hi, > > for some time now my 900i has been producing a sort of "bump" when > being driven. It appears to be in time with the wheel revolution and > is particularly noticeable at low speed on a smooth surface. At > higher speeds it manifests itself as increased vibration. It feels > like a flat spot or a bump on one of the wheels/tyres but I have > inspected both and cannot see anything obvious. The nearside CV joint > was replaced recently but didn't cure the problem. Other possible > related symptoms are that when changing direction (i.e from reverse to > forward or vice versa) there is often a single clunk. The only > potential problem I know about is that the nearside torque arm bush > needs replacement. > > Another issue that may or may not be related (I doubt it) is that my > front brakes are very squeaky/squealy even when they are not being > applied. The squeak is loudest when the wheels are straight or almost > straight. When they are turned any distance the squeak disappears. > Also, lightly touching the brake pedal also causes the squeak to stop > temporarily, as does going over a bump. Needless to say that the > brakes are very squealy when applied. > > Any suggestions as to where to look before I take it to my local Saab > techs? > > best, > > Pete

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