What Causes the Jerking When Shifting to D Gear in an AT Transmission?

1 Answers
DiAliyah
07/29/25 11:03pm
Reason mainly lies in the formation of stubborn impurities and dirt inside the transmission. These contaminants can clog the control passages, causing delays in the automatic transmission control valve operation and resulting in transmission jerking. Below are relevant explanations: Transmission Oil Overheating: The root cause of transmission issues is high transmission oil temperature. Friction Characteristics: High temperatures degrade the quality and friction properties of transmission oil, increasing friction and wear. This leads to transmission noise, while sludge (impurities or dirt) also forms inside the transmission (e.g., valve body), causing delays in the automatic transmission control valve and resulting in transmission jerking.
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