2. Warm up the transmission fluid to operating temperature (80-90C).
Note: The transmission fluid warms up to operating temperature after 10 minutes of driving in urban conditions.
3. Apply the parking brake and place wheel chocks under the rear wheels.
4. Connect the tachometer to the engine.
5. Start the engine, press the brake pedal and move the selector lever to position "D"
Caution: Do not hold the accelerator pedal down for more than 5 seconds during the test.
6. While releasing the brake pedal, fully depress the accelerator pedal. Read the tachometer readings and immediately release the accelerator pedal. Nominal value. 2400-2300 rpm.
Note: If this test is to be performed more than once, after each test, move the selector lever to the "N" position and run the engine at 1000 rpm to cool the transmission fluid.
7. Depending on the measured values, determine the malfunction, then check the pressure in the line of the corresponding element.
8. Move the selector lever to the "R" position and repeat the procedures described earlier.
- If the engine speed is higher than the nominal speed in the "D" position, the overrunning clutch or final drive clutch may be slipping.
- If the engine speed is higher than the nominal speed in the "R" position, the front clutch or the downshift and reverse brake may be slipping.
- If the engine speed is below the nominal in the "D" and "R" positions, the engine may be underpowered or the torque converter may be faulty.
(This article is based on information from the website: HyundaiBook)