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How does the servo work in a transmission?

Updated: 4/28/2022
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15y ago

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It can vary according to the transmission. The servo's main job is to help control the application of bands to the clutches, mostly for higher gears such as 3rd or overdrive (4th gear). It is a spring loaded assembly that applies a band based on the fluid line pressure. A faulty servo can usually cause harsh upshifts/downshifts for the higher gear ranges.

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15y ago
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Q: How does the servo work in a transmission?
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