檢查與診斷:首先，讓車輛行駛在不平整路面上，停車后觸摸外殼，如果感覺(jué)不夠熱，可能內(nèi)部阻力不足。如果外殼發(fā)熱，則表明減震器缺油，需添加潤(rùn)滑并再次測(cè)試。若汽車在按下保險(xiǎn)杠后出現(xiàn)多次跳躍，說(shuō)明減震器工作正常。
動(dòng)態(tài)測(cè)試:緊急制動(dòng)時(shí)，若振動(dòng)強(qiáng)烈，減震器可能存在故障。通過(guò)將減震器拉壓測(cè)試，若阻力不穩(wěn)定或無(wú)阻力，可能是內(nèi)部缺油或閥門(mén)損壞，需修復(fù)或更換。
問(wèn)題確認(rèn)與維修：

在發(fā)現(xiàn)問(wèn)題后，首先要確認(rèn)減震器的漏油情況和舊漏油痕跡。同時(shí)，注意油封墊圈、密封墊圈是否破裂，以及貯油缸蓋螺母是否松動(dòng)。這些都是決定是否更換減震器的重要因素。

總結(jié)：

更換減震器油封并非孤立的操作，需要全面診斷和檢查以確保減震器功能正常。一旦發(fā)現(xiàn)漏油或性能問(wèn)題，務(wù)必采取適當(dāng)?shù)拇胧?，以確保駕駛安全和舒適性。

Inspection and diagnosis: First, let the vehicle drive on uneven roads and touch the shell after parking. If it feels not hot enough, the internal resistance may be insufficient.If the shell heats up, it indicates that the shock absorber is out of oil, so lubrication needs to be added and tested again.If the car jumps multiple times after pressing the bumper, the shock absorber is working normally.
Dynamic test: During emergency braking, if the vibration is strong, the shock absorber may fail.Through the tension and pressure test of the shock absorber, if the resistance is unstable or there is no resistance, it may be due to internal oil shortage or valve damage, which needs to be repaired or replaced.
Problem confirmation and repair：

After discovering the problem, it is first necessary to confirm the oil leakage of the shock absorber and the traces of the old oil leakage.At the same time, pay attention to whether the oil seal washer and sealing washer are broken, and whether the oil storage cylinder head nut is loose.These are important factors in deciding whether to replace the shock absorber.

summary：

The replacement of the shock absorber oil seal is not an isolated operation, and a comprehensive diagnosis and inspection are required to ensure that the shock absorber functions normally.Once an oil spill or performance problem is found, it is important to take appropriate measures to ensure driving safety and comfort.