The shift selector valve supplies main pressure to the ___________valve, which directs that pressure to the corresponding shift signal valve depending on the driver's gear selection.

The shift selector valve supplies main pressure to the ___________valve, which directs that pressure to the corresponding shift signal valve depending on the driver's gear selection.

• A. Hold regulator
• B. Shift modulator
• C. Trimmer regulator
• D. Priority

Answer: (A)

Pressure routing in the transmission control uses a hold regulator to stabilize and direct the main hydraulic pressure to the gear-specific shift signal valves. When the driver selects a gear, the shift selector valve passes the main pressure to the hold regulator, which then feeds the appropriate shift signal valve for that gear. This setup ensures the correct signal is sent to engage the chosen gear reliably. Other valves play different roles—such as modulating shift timing or ensuring essential circuits get pressure—so they don’t fit this flow path.

Pressure routing in the transmission control uses a hold regulator to stabilize and direct the main hydraulic pressure to the gear-specific shift signal valves. When the driver selects a gear, the shift selector valve passes the main pressure to the hold regulator, which then feeds the appropriate shift signal valve for that gear. This setup ensures the correct signal is sent to engage the chosen gear reliably. Other valves play different roles—such as modulating shift timing or ensuring essential circuits get pressure—so they don’t fit this flow path.