Why Can't the BYD Song Gear Shift Engage?

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Here are the detailed reasons why the BYD Song gear shift may not engage: 1. Loose Shift Fork: The screws fixing the shift fork may have loosened, causing incomplete gear engagement. Severe wear on the shift fork can prevent it from moving the gear, leading to difficult shifting. In this case, repair or replace the damaged shift fork and tighten the fixing screws. 2. Worn Positioning Groove: Irregular steps on the surface may sometimes jam during gear shifting, preventing the positioning pin from sliding out of the groove, resulting in difficulty or failure to engage gears. This should be repaired. 3. Deformed Shift Shaft: A deformed shift shaft can make it difficult for the sliding gear to move. Repair or replace the shift shaft in this situation. 4. Incomplete Clutch Disengagement: If the gears inside the transmission continue to rotate during shifting, it can make shifting difficult. Adjust the clutch in this case.