The determine displays the vacuum clutch system. This sort of clutch utilizes the prevailing vacuum inside the motor manifold to operate the clutch. The vacuum clutch is made of a reservoir, non-return valve, vacuum cylinder with piston, and solenoid valve.  With all your vehicle idling, listen for any growling sound https://clutchkereta97429.win-blog.com/13465330/detailed-notes-on-clutch-kereta