如果怠速时的主油路油压高，则说明主油压路调压阀或节气门阀有故障，可能是调压弹簧的预紧力过大或阀芯卡滞所致;如果怠速时主油路油压正常，但起步进挡时有较大的冲击，则说明前进离合器或倒档及高档离合器的进油单向阀阀球损坏或漏装。
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.
装用自动变速箱的汽车的发动机怠速一般为750r/min左右。若怠速过高，应按标准予以调整。
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.
济南自动变速箱维修
检测换挡时的主油压路。正常情况下，换挡时的主油路压会有瞬间时的下降。如果换挡时主油路油压没有下降，则说明减震器活塞卡滞。
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.
如果有升档过迟的现象，说明换挡冲击大的故障时升档过迟导致。如在升档之前发动机转速异常升高，导致在升档的瞬间有较大的换挡冲击，则说明离合器或制动器打滑，应分解自动变速箱，进行维修。
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.
电子控制自动变速箱如果出现换挡冲击故障，应检查油压电磁阀的线路以及油压电磁阀工作是否正常、电脑是否在换挡瞬间向油压电磁阀发出控制信号，如线路故障，应修复;如果电磁阀损坏，应更换电磁阀。
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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