故障情況：異常響聲在維修行業(yè)稱為異響。在汽車運(yùn)轉(zhuǎn)過(guò)程中，常見(jiàn)自動(dòng)變速器內(nèi)有異響聲、汽車行駛中自動(dòng)變速器有異響，停車掛檔后異響消失。

Fault situation: Abnormal noise is called abnormal noise in the maintenance industry. During the operation of a car, it is common for abnormal noises to occur inside the automatic transmission. The abnormal noises also occur while the car is in motion, and disappear after parking and shifting gears.

一般來(lái)說(shuō)，原因如下幾個(gè)方面：

Generally speaking, the reasons are as follows:

油泵因磨損過(guò)甚或自動(dòng)變速器油面高度過(guò)低、過(guò)高而產(chǎn)生異響

The oil pump may produce abnormal noise due to excessive wear or even low or high automatic transmission oil level

液力變矩器因鎖止離合器、導(dǎo)輪單向超越離合器等損壞而產(chǎn)生異響

The hydraulic torque converter produces abnormal noise due to damage to the lock up clutch, guide wheel one-way overrunning clutch, etc

行星齒輪機(jī)構(gòu)異響

Abnormal noise from planetary gear mechanism

換檔執(zhí)行元件異響

Gear shift actuator abnormal noise

解決方法：

Solution:

檢查自動(dòng)變速器油油面高度。若太高或太低，應(yīng)調(diào)整至正確高度。

Check the oil level of the automatic transmission. If it is too high or too low, it should be adjusted to the correct height.

應(yīng)舉升器將汽車升起，起動(dòng)發(fā)動(dòng)機(jī)，在空檔、前進(jìn)檔、倒檔等狀態(tài)下檢查自動(dòng)變速器產(chǎn)生異響的部位和時(shí)刻。

Lift the car with a hoist, start the engine, and check the location and timing of the abnormal noise generated by the automatic transmission in neutral, forward, reverse, and other states.

若在任何檔位下自動(dòng)變速器前部始終有連續(xù)的異響，通常為油泵或液力變矩器異響，對(duì)此，應(yīng)拆檢自動(dòng)變速器，檢查油泵有無(wú)磨損、液力變矩器內(nèi)有無(wú)大量摩擦粉末。如有異常，應(yīng)更換油泵或液力變矩器。

If there is continuous abnormal noise at the front of the automatic transmission in any gear, usually from the oil pump or hydraulic torque converter, the automatic transmission should be disassembled and inspected for wear on the oil pump and for a large amount of friction powder inside the hydraulic torque converter. If there is any abnormality, the oil pump or hydraulic torque converter should be replaced.

若自動(dòng)變速器只有在行駛中才有異響，空檔時(shí)無(wú)異響，則為行星齒輪機(jī)構(gòu)異響。對(duì)此，應(yīng)分解自動(dòng)變速器，檢查行星齒輪機(jī)構(gòu)各個(gè)零件有無(wú)磨損痕跡、齒輪有無(wú)斷裂，單向超越離合器有無(wú)磨損、卡滯，軸承或止推墊片有無(wú)損壞。如有異常，應(yīng)予以更換。

If the automatic transmission only makes abnormal noises while driving and there is no abnormal noise in neutral, it is a planetary gear mechanism abnormal noise. In this regard, the automatic transmission should be disassembled, and the various parts of the planetary gear mechanism should be checked for signs of wear, whether the gears are broken, whether the one-way overrunning clutch is worn or stuck, and whether the bearings or thrust washers are damaged. If there are any abnormalities, they should be replaced.