What is the reason for severe jerking after using a circulation machine for oil change?
1 Answers
The reason for severe jerking after using a circulation machine for oil change is the failure to properly evacuate air from the system, which causes air to flow without timely lubrication during operation, resulting in jerking sensations. Reasons for jerking: Incorrect selection of transmission oil specifications. With the advancement of automatic transmission technology, control mechanisms have become more precise, and the requirements for transmission oil have become more stringent. Some non-original oils may lead to certain issues. Inappropriate amount of transmission oil added. Overfilling the transmission oil causes the gears to churn and create foam, leading the oil pump to suck in foamy oil and resulting in a drop in oil pressure, which can cause clutch slippage and jerking. Conversely, insufficient transmission oil may also lead to a drop in oil pressure and jerking when the oil pump circulates part of the remaining oil. Some transmissions have an overflow tube inside the drain port, so after draining the old oil, do not rush to tighten the screw; instead, continue adding oil until new oil flows out from the drain port. This is a normal situation, and the transmission can automatically learn and adjust to the optimal state by accelerating and decelerating to switch between gears. Alternatively, you can switch to manual mode to force gear shifts and allow the transmission to learn quickly. Aftereffects of using a circulation machine for oil change: The pressure during the oil change may flush down some impurities, causing valve body blockage and unstable oil pressure. Solutions for jerking: Avoid driving with heavy throttle. Maintain a steady throttle or turn off and restart the engine, then drive to the nearest service station for inspection as soon as possible.
