Pages 25–28 (4 pages)
The Throttle Pressure System
From the 1971 Ford C4 Automatic Transmission Technician Reference Manual
- Year
- 1971
- Make
- Ford
- Type
- Training Manual
- Models
- C4 three-speed automatic transmission (Cruise-O-Matic type)
- Publication
- Course 7511
- Pages
- 57
How the engine load signal is produced and used: the vacuum diaphragm and throttle valve, throttle booster valve, throttle modulator valve, downshift valve and the cut-back and coasting boost valves that raise or lower control pressure.
What this section covers
- Throttle valve and vacuum diaphragm
- Throttle booster valve
- Throttle modulator valve
- Downshift valve
- Cut-back control valve
- Coasting boost valve
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