Technician A says that a vacuum modulator converts manifold vacuum into an engine load signal. Technician B says that the manual valve is moved by governor pressure to force a shift. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because a vacuum modulator uses manifold vacuum to determine engine load and adjust transmission shift points accordingly. Technician B is incorrect because the manual valve is moved by the driver through the gear selector, not by governor pressure.

Technician a Says That a Vacuum Modulator Converts Manifold Vacuum