Re: 9-3X intermittent shudder while driving at highway speeds - Saab 9-3SS Bulletin Board - Saabnet.com
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Re: 9-3X intermittent shudder while driving at highway speeds
Posted by Used to be Slug (more from Used to be Slug) on Thu, 29 Feb 2024 07:59:43
In Reply to: 9-3X intermittent shudder while driving at highway speeds, GoldenSaab [Profile/Gallery]
, Tue, 27 Feb 2024 08:53:12
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How healthy are your ignition coils? Is it possible the shuddering is due to engine misfires? I think with bad coils would you be able to see the # of misfires at each coil to diagnose...?
Another possibility: this was one of the symptoms I experienced when my XWD rear differential was starting to go. The other symptom I had was when I made slow speed tight turns in a parking lot, the rear differential would go 'thunk, thunk, thunk...'. As time went on these symptoms became more frequent. I never got any check lights. I tried changing the rear diff fluids, and then ended up replacing the rear diff.
posted by 172.56.112...
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