Is It Normal for a New Aisin 6AT Transmission to Have Upshift Jerking?

[OEli]

Upshift jerking in a new Aisin 6AT transmission is not normal. The reasons are: 1. Stubborn dirt and impurities inside the transmission, especially when accumulated in the valve body, can cause blockages, preventing effective regulation of oil pressure and leading to jerking, impact, and slipping issues; 2. High temperatures in the transmission can degrade the quality and friction characteristics of the transmission fluid, increasing friction and wear. The features of the Aisin 6AT transmission include: 1. Fuel efficiency: It uses two sets of planetary gears, reducing fuel consumption during upshifts, and an expanded lock-up range that significantly helps in lowering fuel consumption; 2. Quiet and comfortable operation: A long-stroke damper is added to the torque converter, effectively suppressing vibrations. Additionally, the wider spacing between gear teeth helps maintain lower engine speeds, resulting in relatively quieter operation.