Throttle Valve B Pressure Measurement

20. If line pressure is low or non – existent, suspect servo valve or 4th clutch fault.

Throttle Valve B Pressure Measurement

A    Throttle B pressure inspection hole
B    Throttle control cable
C    Throttle control lever

1. Apply the handbrake and chock the wheels.
2. Disconnect the throttle control cable from the throttle control lever at the gearbox and set the gearbox throttle control lever in full throttle position.

WARNING: Do not disconnect throttle cable at throttle body.

3. Select D4.
4. Depress accelerator and increase engine speed to 1000 rev/min.
5. Maintain engine speed at 1000 rev/min and using assistance, move gearbox throttle lever to fully closed position; note line pressure reading.
   Line pressure = 0 kg/cm².
6. If line pressure is registered on gauge, suspect throttle valve B fault.
7. Maintain engine speed at 1000 rev/min and using assistance, move gearbox throttle lever to fully open position; note line pressure reading.
   Line pressure = 7.5 to 8.5 kg/cm².
8. If line pressure is low or non – existent, suspect throttle valve B fault.