What is the situation when you step on the brakes and give oil back?

In many cases, the damage is not the internal valve body, but the stubborn dirt and impurities inside the valve body, especially the dirt and impurities inside the valve body gather to form a blockage, which leads to the failure to effectively adjust the oil pressure and lead to the occurrence of bumping and slipping. At present, the traditional solution is to change the gearbox oil, which is effective but cannot be cured. Non-professionals who repair gearboxes dare not operate easily. Now that technology has developed, the problem of gearbox frustration can be eliminated.