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Date: 28 Mar 2001 11:29:15 GMT
From: toobwiznopsamcomSPAMKILL (Wiz)
Subject: Re: Squeaking in front wheel, 900S


>Has anyone mentioned the possibility that the sound is coming from afailing >wheel bearing? That was my first diagnosis, which failed as I mentioned in my original post; see below. Cheers/Carron still wanting some wisdom from the list. Saab folks,Could someone help me diagnose a noise in the right front wheel area of my daughter's'88 900S?She first noticed it when slowly turning to the left. The noise comes from thearea of the right front wheel, and is an alternating groan/sqwak varying withspeed (frequency) and load (loudness). For instance, when circling tightly on a hillside, it made much more noise whenthe right tire was downhill. I took the car for a long coutry road drive andfound that the noise turned into a higher pitched chirp/squeak related to roadspeed when turning left, and again, the noise was louder when the curve wasalso banked so that the load was increased on the right wheel.I thought it was a bearing problem, but upon returning home, I jacked the carand found the front wheels did not rock top-to-bottom when pulled and pushed. Iremoved the tire and felt the hub area...no more than warm after 30 miles ofdriving. I think those two tests eliminate wheel bearing problems.The next thing I thought of was the right outer CV joint, but I've never hadone go out, so I don't know what sort of sound it might make. I do know thatthe right tripod joint is worn somewhat, but this sound is definitely comingfrom outboard of that joint; further, I don't think a noise from the tripodwould increase with turning load, as it would not likely experience greatlyincreased load in turns. I do hear the bumping noise from the tripod at times.I would like to fix both of these at the same time, so I hope the list can helpme figure out this problem.Anyone know this one??? "LABOR SVGIT"

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