STEP 1. Check the engine performance.
STEP 2. Check the transmission fluid level.
STEP 3. Check and repair the leakage point of the transmission fluid.
STEP 4. Check the transmission fluid.
STEP 5. Retest the system.
STEP 6. Check the torque converter.
STEP 7. Compare with another same model vehicle.
STEP 8. Remove the transaxle assembly from the vehicle.
Disassemble and check the transaxle assembly to check if there is a foreign material inside.Is the check result satisfactory?
Replace the transaxle assembly. Replace the failure part.