轎車自動(dòng)變速器的故障往往是由發(fā)動(dòng)機(jī)和電控系統(tǒng)引起，也有是由自動(dòng)變速器本身引起，在進(jìn)行檢修之前,根據(jù)由簡(jiǎn)入繁、由易到難的原則，應(yīng)先將故障部位大致分清(即發(fā)動(dòng)機(jī)故障還是自動(dòng)變速器故障)。若變速器帶有自我診斷系統(tǒng)，則應(yīng)先進(jìn)行自診。檢查自動(dòng)變速器鼓掌一般按以下程序進(jìn)行:
The faults of automatic transmissions in sedans are often caused by the engine and electronic control system, as well as by the automatic transmission itself. Before conducting maintenance, based on the principles of simplicity to complexity and ease to difficulty, the fault location should be roughly distinguished (i.e. engine fault or automatic transmission fault). If the transmission is equipped with a self diagnosis system, a self diagnosis should be conducted first. The following procedure is generally followed for checking automatic transmission applause:
(1)先進(jìn)行基礎(chǔ)檢查:如變速器油的質(zhì)量和數(shù)量是否合適;節(jié)氣門拉線記號(hào)是否正確;變速操縱桿系及空檔啟動(dòng)開關(guān)是否工作正常;空轉(zhuǎn)轉(zhuǎn)速是否合適;輪胎氣壓是否標(biāo)準(zhǔn)。
(1) First, conduct a basic inspection: such as whether the quality and quantity of transmission oil are appropriate; Is the marking of the throttle cable correct; Check if the speed control lever system and neutral start switch are working properly; Is the idle speed appropriate; Is the tire pressure standard.
(2)然后進(jìn)行時(shí)速試驗(yàn):以檢查發(fā)動(dòng)機(jī)和自動(dòng)變速器的性能。
(2) Then conduct a speed test to check the performance of the engine and automatic transmission.
(3)時(shí)滯試驗(yàn):對(duì)液壓管道進(jìn)行基礎(chǔ)檢查后，通過液壓試驗(yàn)來確認(rèn)液壓系統(tǒng)是否有故障。
(3) Time delay test: After conducting a basic inspection of the hydraulic pipeline, hydraulic testing is conducted to confirm whether the hydraulic system is malfunctioning.
(4)后道路試驗(yàn):通過路試，進(jìn)一步檢查變速器的性能，確認(rèn)故障發(fā)生的部位，為變速器檢修提供依據(jù)。
(4) Post road test: Through road test, further check the performance of the transmission, confirm the location of the fault, and provide a basis for transmission maintenance.
