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What is the function of a modulator of car?

Updated: 4/28/2022
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10y ago

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Assuming you mean the modulator on an automatic transmission... The modulator help to control the timing of the changing of gears in the tansmission. The modulator uses manifold vacuum to finetune the shift point, lower vacuum means higher load, throttle is open wider, shift point will be delayed.

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Q: What is the function of a modulator of car?
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