Vacuum modulator meaning

Vacuum modulator definition

A small unit attached to the automatic transmission . If the vehicle tends to stay in low gear , shifts with difficulty or produces whitish smoke, has an automatic transmission , and is constantly low in transmission fluid , try replacing the vacuum modulator before undertaking major repairs. Most vacuum modulators simply screw into place. See modulator .

Dictionary of Automotive Terms Index

Automotive terms beginning with "V", page 2

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