故障现象:
起步时踩下油门踏板，发动机转速很快升高但车速升高缓慢;行驶中踩下油门踏板加速时，发动机转速升高但车速没有很快提高，平路行驶基本正常，但上坡无力，且发动机转速很高。
可能的原因:
① 液压油油面太低;液压油油面太高，运转中被行星排剧烈搅动后产生大量气泡
② 离合器或制动器摩擦片、制动带磨损过甚或烧焦
③ 油泵磨损过甚或主油路泄漏，造成油路油压过低
④ 单向超越离合器打滑
⑤ 离合器或制动器活塞密封圈损坏，导致漏油
⑥ 减振器活塞密封圈损坏，导致漏油
故障诊断或排除措施:
① 自动变速器在所有前进挡都有打滑现象，则为前进离合器打滑
② 自动变速器在操纵手柄位于D位时的1 挡有打滑，而在操纵手柄位于L位或1位时的1 挡不打 滑，则为前讲单向超越离合器打滑。若不论操纵手柄位于D位或L位或1 位时，1挡都有打滑现象，则为低挡及倒挡制动器打滑;
③ 自动变速器只在操纵手柄位于D位时的2挡有打滑，而在操纵手柄位于S位或2位时的2挡不打滑，则为2 挡单向超越离合器打滑。若不论操纵手柄位于D位或S位或2 位时，2挡都有打滑现象，则为2挡制动器打滑，
④ 在3挡有打滑现象，则为倒挡及高挡离合器打滑
⑤ 超速挡时有打滑现象，则为超速制动器打滑，
⑥ 在倒挡和高挡时都有打滑现象，则为倒挡及高挡离合器打滑
⑦ 在倒挡和1挡时都有打滑现象，则为低挡及倒挡制动器打滑.
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Fault performance：
When the accelerator pedal is pressed at the start, the engine speed rises quickly but the speed rises slowly; when the accelerator pedal is pressed at the drive, the engine speed rises but the speed does not increase quickly, the flat road driving is basically normal, but the uphill force is weak, and the engine speed is very high.
Possible causes：
① Hydraulic oil level is too low; hydraulic oil level is too high, and a large number of bubbles are generated after the planetary row is stirred violently during operation
② Clutch or brake friction plate, brake belt is too worn or burnt
③ Oil pump wear is too much or the main oil circuit leakage, resulting in low oil pressure in the oil circuit
④ slipping of the one-way overrunning clutch
⑤ Damaged clutch or brake piston seal, resulting in oil leakage
⑥ Damaged damper piston seal, resulting in oil leakage
Troubleshooting or elimination measures.
① If the automatic transmission is slipping in all forward gears, the forward clutch is slipping
② If the automatic transmission slips in 1st gear when the joystick is in position D, but not in 1st gear when the joystick is in position L or 1, then the front overrunning clutch is slipping. If there is slippage in 1st gear regardless of whether the joystick is in the D or L position or 1st position, then the low gear and reverse brake are slipping.
If the automatic transmission only slips in 2nd gear when the joystick is in the D position, but not in 2nd gear when the joystick is in the S position or 2nd position, then the 2nd gear one-way overrunning clutch is slipping. If there is slippage in 2nd gear regardless of whether the joystick is in D or S or 2, then the 2nd gear brake is slipping.
④ If there is slippage in 3rd gear, the clutch is slipping in reverse gear and high gear.
⑤ If there is slippage in overdrive, the overdrive brake is slipping.
⑥ If there is slippage in both reverse and high gears, the clutch in reverse and high gears is slipping.
⑦ slipping in both reverse and 1st gear, then the low gear and reverse brake are slipping.
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