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Date: Wed, 28 Mar 2001 14:36:10 GMT
Subject: Re: Squeaking in front wheel, 900S

Have a mechanic put the car on a hoist,it sounds very much like a ball joint is going. If they give warning they are about to fail you shoul replace them in pairs. Good Luck! Jim "Wiz" <toobwiznopsamcomSPAMKILL> wrote in message > >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 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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