2. Warm up the transmission fluid to operating temperature (80-90С).
Note: The transmission fluid warms up to operating temperature after 10 minutes of urban driving.
3. Set the parking brake and place wheel chocks under the rear wheels.
4. Connect a tachometer to the engine.
5. Start the engine, depress the brake pedal and move the selector lever to the «D»
Attention: during the test, do not hold the accelerator pedal depressed for more than 5 seconds.
6. While releasing the brake pedal, fully depress the accelerator pedal. Read the tachometer and immediately release the accelerator pedal. Rated value. 2400-2300 rpm.
Note: If this test is to be carried out more than once, then after each test, move the selector lever to the position «N» and let the engine run at 1000 rpm to cool the transmission fluid.
7. Depending on the measured values, determine the malfunction, and then check the pressure in the line of the corresponding element.
8. Move the selector lever to position «R» and repeat the previous procedures.
- If the engine speed is higher than the nominal at the position «D», There may be slipping of the freewheel or end clutch.
- If the engine speed is higher than the nominal at the position «R», The front clutch or the underdrive/reverse brake may be slipping.
- If the engine speed is lower than the nominal at the positions «D» And «R», there may be insufficient engine power or a malfunctioning torque converter.