如果怠速時的主油路油壓高，則說明主油壓路調壓閥或節氣門閥有故障，可能是調壓彈簧的預緊力過大或閥芯卡滯所致;如果怠速時主油路油壓正常，但起步進擋時有較大的沖擊，則說明前進離合器或倒檔及高檔離合器的進油單向閥閥球損壞或漏裝。
If the main oil pressure of the main oil road at the idle speed is high, it indicates that the main oil pressure valve or throttle valve has a fault, it may be caused by the excessive pre tightening force of the pressure regulating spring or the stagnation of the valve core; if the oil pressure of the main oil road is normal at the idle speed, but there is a great impact on the starting gear, it will indicate the oil intake of the forward clutch or the upside clutch and the upscale clutch. Damage or leak to the valve ball.
裝用自動變速箱的汽車的發動機怠速一般為750r/min左右。若怠速過高，應按標準予以調整。
The idling speed of a car equipped with automatic transmission is about 750r/min. If the idle speed is too high, it should be adjusted according to the standard.
濟南自動變速箱維修
檢測換擋時的主油壓路。正常情況下，換擋時的主油路壓會有瞬間時的下降。如果換擋時主油路油壓沒有下降，則說明減震器活塞卡滯。
Test the main oil pressure road in the shift. Under normal circumstances, the main oil pressure shift will drop instantly. If there is no drop in the main oil pressure when shifting, then the piston of the shock absorber is stuck.
如果有升檔過遲的現象，說明換擋沖擊大的故障時升檔過遲導致。如在升檔之前發動機轉速異常升高，導致在升檔的瞬間有較大的換擋沖擊，則說明離合器或制動器打滑，應分解自動變速箱，進行維修。
If there is a phenomenon of too late lifting, it means that the failure of the gear shift is too late. If the engine speed increases before the lift is raised, it causes a larger shift impact at the moment of lifting the gear, indicating that the clutch or brake is skidding and the automatic transmission should be decomposed to carry out maintenance.
電子控制自動變速箱如果出現換擋沖擊故障，應檢查油壓電磁閥的線路以及油壓電磁閥工作是否正常、電腦是否在換擋瞬間向油壓電磁閥發出控制信號，如線路故障，應修復;如果電磁閥損壞，應更換電磁閥。
If there is a shift impact failure in the electronic control automatic transmission, check the line of the hydraulic pressure solenoid valve and the normal work of the oil pressure solenoid valve, whether the computer will send out the control signal to the oil pressure solenoid valve at the moment of shift, such as the fault of the line, if the solenoid valve is damaged, the solenoid valve should be replaced.
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