Before proceeding with the pressure test, set the selector lever to the position «R», run the engine at idle and check that that the oil level in the gearbox is correct (oil level difference between marks «mini» And «maxi» oil dipstick is approximately 0.2-0.4 l).
The pressure in the automatic gearbox is checked with the throttle control cable disconnected and the engine speed at 1500 rpm. Pressure values are indicated in subsection «Detailed Specifications».
To check the pressure in the torque converter, connect a pressure gauge to port 1 (see photo); to check clutch pressure «A» - to hole 2; to check the working pressure and oil supply pressure to the oil cooler - to holes 3 and 5; to check the pressure in the centrifugal pressure regulator - to hole 6, to check the pressure in the pressure reducing valve - to hole 7.
Checked parameter | Selector lever position | Accelerator pedal position and operations |
Torque Converter Pressure | «ABOUT» or «N» | 1. Idling |
2. «kickdown» | ||
Friction pressure «A» | «A» | Apply the handbrake and depress the brake pedal. |
1. Idling | ||
2. «kickdown» | ||
Operating pressure | «ABOUT» or «N» | 1. Idling |
2. «kickdown» | ||
Reducing valve pressure | «O or «N» | 1. Idling |
2. «kickdown» | ||
Pressure in centrifugal pressure regulator | «A» | Vehicle speed (check in motion) 50 km/h |