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 .
VACUUM MODULATOR
Meaning of VACUUM MODULATOR in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012