91 Severe Vibration on Highway - Saab 900 Bulletin Board - Saabnet.com
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91 Severe Vibration on Highway
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Posted by Bob A. (more from Bob A.) on Thu, 28 Aug 2003 15:46:31 Share Post by Email
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Hi. I'm getting bad vibration in the drivetrain after about an hour of highway driving with car fully loaded for a trip. Vibration happens when foot on gas only. Goes away on downhills or with clutch in. Once it starts vibrating it gets pretty bad with time. Sure seems like inner driver wear to me but I've had the right driver and axle replaced 20K ago. My mechanic checked out inner drivers and no play. Also can't get it to repeat unless I fully load up the car as if going on vacation. What could be causing vibration? I do know that the two rear engine mounts sag a bit but they are not broken. Shifter buzzes around a bit due to mounts, but this is not the vibration I'm talking about. Any chance that a car low on the suspension and with sagging engine mounts can be binding or something at the inner driver or CV joint? Or any other ideas? Thanks.
Bob A.
1991 900 3-Door N/A 135K

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