Should Transmission Fluid Be Replaced When Changing the Valve Body?

1 Answers
VanEva
07/29/25 6:48pm
Generally, when replacing the valve body, it is necessary to change the transmission fluid simultaneously. This type of maintenance does not affect the lifespan of the transmission. The warning signs that indicate the need for transmission fluid replacement include: vehicle body shaking, gear shifting hesitation; the dashboard showing a transmission overheating warning; the car stalling; and unusual noises. The methods for replacing transmission fluid are as follows: Unscrew the drain plug at the bottom of the transmission to drain the old fluid before refilling. Directly remove the transmission oil pan to drain and refill the fluid: This method is more thorough than the previous one, as it removes impurities from the bottom of the oil pan. Use a circulation machine to replace automatic transmission fluid: Dynamic fluid replacement with an intelligent circulation machine can filter and clean sludge and impurities inside the automatic transmission. The hazards of not changing the transmission fluid for a long time include: 1. Damage to the transmission's shift control mechanism; 2. Abnormal wear of gears and clutch plates inside the transmission; 3. Affecting the normal operation of the transmission, leading to damage to the transmission's valve body.
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