Torque Converter Failures Testing And Repairing Traffic Jitter – Torque Converter – Car Repair And
For automatic equipment Transmission Of the vehicle, locking clutch failure on the vehicle will have a great impact. The common fault with the clutch lock: Lock the clutch can not be joint, not separation, bonding and spin so bad. The failure phenomenon varied, so grasp the working principle, characteristics and analysis of failure is very important. A 1996 Ford Wind Star car. When the vehicle, the high speed of vehicles produced Shake It feels like the engine shake and commit the same seat. According to this fault car speaker repair shop in other Service Many times, engine replacement parts on a lot, but the point is not to improve fault phenomenon. Related Reading: DIY car repair auto repair self-taught how to transform into sharp brother Improper operation of his car repair care killed “five taboo”
First to road test the vehicle at the 40-80km / h no pattern of occurrence between the jitter. First tested on the engine, but found fault. Consider at this time may be other factors. Then connect the computer Detector Read the data stream, found that when the locking clutch (TCC) bonding, especially when they take Taiwan to the 40% -60% of the time, the vehicle will be there shaking. Thus determine the bad fault caused by the combination of the TCC. But which part of node sets bad turn, caused it? Point of failure may lie in electrical control, hydraulic and mechanical systems which part. Of course, there are some special circumstances, such as when Throttle Close to exert Brake , Hard acceleration or rapid deceleration, shifting, oil temperature lower than 60 temperature is too high and help block the following gear in 3 and so on, as they lock when the clutch is not bonding.
Locking clutch engagement and separation from the computer (PCM) through the locking clutch (TCC) solenoid to control between. Computer according to throttle position Sensor , Speed sensor, turbo-axis sensor, gear, gear shift and brake switch time signal analysis, provided to the TCC solenoid valve duty cycle signal, changing the TCC solenoid valve opening to control the clutch action. For the TCC’s work, the computer is through the engine speed and the turbine shaft (input shaft) to monitor the speed difference. When the lock is not working the clutch, the engine speed to be greater than the turbine shaft speed 200-300r/min; Lock Clutch in the process, both the speed difference should decrease gradually; when the lock after the clutch is fully engaged, both The speed difference should be almost zero. Thus, we can observe the engine speed and turbo speed (input shaft speed) of the difference between the clutch judge how good or bad work conditions and. Lock in determining the number of clutch engagement can not be separated or not failure, can also be connected to the transmission detector (a solenoid valve can control the work of the inspection tools), disconnect the computer on the transmission of control, people control the clutch solenoid valve work to determine the control part of the fault, or the operative part of the fault. If the artificial control of the work of the clutch solenoid valve failure is still there, indicating no problem with electronic control part. If the fault lies in the electronic control section, the impact of the TCC should first check the work of the various sensors signal is normal, then check whether the PCM signal by the sensor to work properly, the final check wire connection is good. Hydraulic failure on the part of
can be judged by measuring the oil pressure to. This car’s transmission was carried out hydraulic test. Road test, the jitter appears in the TCC engagement and did not find the volatility of oil pressure and abnormal. In order to determine the existence of this part of the transmission hydraulic failure, the valve off and installed under the test templates, test using compressed air. The results showed that the TCC and the hydraulic valve body manifold works well, the hydraulic part of the fault may be the basic rule out the possibility.
As for the mechanical part, unable to disassemble, so only by the exclusion of other aspects of the failure to identify. Areas through the detection and analysis, I determine the fault can only be a part of the machinery, that is the torque converter clutch lock.
Here to remind the general maintenance personnel, as unable to disassemble the torque converter, it should be noted in the maintenance of transmission, torque converter when the cleaning problem, to avoid the entry of foreign matter and damaged torque converter clutch lock. For oil drain plug torque converter, when the discovery of oil has changed when the oil drain plug should be open, flush with new oil repeatedly; oil drain plug for the torque converter is not, you can use compressed air upside-down cleaning method.
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