Governor Check
- With vehicle on hoist (rear wheels off ground), disconnect vacuum line to modulator. Connect pressure gauge to transmission and tachometer to engine.
- Start engine. Move selector lever to drive range and release brake. Check line pressure at 1000 RPM. Line pressure should be 150 psi (10.5 kg/cm2 ). Slowly increase engine speed to 3000 RPM. Check line pressure. See Figure .
- Line pressure should drop 10 psi (.7 kg/cm2 ). If no pressure drop occurs, inspect governor for sticking valve or weight, restricted orifice in valve, scored or cracked bore or restricted feed pipe or screen.