Ford Focus Forum, Ford Focus ST Forum - View Single Post - Speedometer jumps/bounces and car trembles/shakes
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Old 05-14-2007, 07:30 PM   #13
fastfocus00
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Join Date: Dec 2004
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Location: Idaho
What I Drive: 2000 Autumn Orange ZX3 5-Speed

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i had the same problem. its prolly your speed sensor malfunctioning. my car did the same thing. have someone replace it and it should take care of it. your speedo and tach and trip run off the speed sensor which is part of the tranny so when your speedo jumps around it makes the car feel like its shaking and what not.
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