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Ford Focus 2 automatic transmission 6DCT450 stopped engaging gears. The scanner showed error P0766, which means the valve is stuck in the hydraulic unit. The hydraulic unit was removed, disassembled, washed. Replaced the internal and external filters, also changed the oil in the box. This gave a positive result, the car went. Change the oil in the box 40-45 thousand, the external filter 7-10 thousand mileage #powershift #error P0766 #automatic transmission repair