Vacuum drops under high-load conditions (such as engine acceleration), causing a modulator spring to overcome vacuum pull on the diaphragm.

By lowering the vacuum signal to the modulator, the transmission senses an increase in throttle opening position and compensates by increasing oil line pressure throughout the transmission.

Walking with the Beggar Boys is supposed to be the album on which indie-pop group Elf Power abandons the hippie-mystical trappings of its early work. But listen to some lyrics from the title track ...