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I have driven Sables for years and have found if you are moving at a slow speed, maybe decelerating, and begin to accelerate, sometimes the transmission downshifts with a very noticeable jerk and a thud sound. I put 200k miles on a '96 Sable with this happening and never had a problem requiring attention.

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โˆ™ 2005-08-17 19:07:59
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Q: Why would your 1991 Mercury Sable jerk sometimes when you start to accelerate?
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