Date: 8 May 2002 01:50:40 -0700
From: (Peter Thompson)
Subject: "Bumping" on 1985 900i

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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