A 2002 Honda Odyssey with mileage over 220,000 km, configured MAXA automatic transmission. The car with 70km/h constant speed appears intermittently vehicle body shake.
Fault Diagnosis: The car constant speed, when torque converter into lock-up initial stages, the body appear obvious shake; when torque converter complete lock-up, the body shake disappear. Check the automatic transmission fluid, the amount and quality of oil is normal. Use Honda HDS HIM self-diagnosis the automatic transmission system, no fault code.
Road test, at the same time check the changes of data stream, found when appears lock-up clutch command, the vehicle body shake appear immediately, the whole process does not appear skidding. It showed transmission hydraulic system is working properly, the problem is in the torque converter.
Remove the transmission assembly, cut open the torque converter to check, found the torque converter is refurbished. Measuring the torque converter cover internal lockup clutch working surface flatness, the maximum amount of fluctuation does not exceed the standard value. Check the lock-up clutch, the friction surface not flat, there is a raised portion, that is caused by improper operation.The common reason is sticky sheet mold used improper selection or mold itself is not flat. Replace the torque converter, the fault completely ruled out.
The direct cause of vehicle body shake is lockup clutch friction plates not flat. In the early lock-up clutch cement, friction plates not flat will caused the friction appeared hopping, cement impact make the body shake. In order to make sure the maintenance quality of the automatic transmission, have to use special tool, and check the special tool itself is good.
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