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Q: speedometer quit working. does this effect the transmission? on 1995 Ford Contour

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
car jerks when going up and down hills during exceleration and also when coming down hills.
(1) Answer
if speed sensor is bad, it tells computer what speed your going and when to shift transmission. may not set engine light but should show code for speed sensor fault.
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