I usually hear a 'thug sound' whenever I shift my automatic transmission car on reverse. What does it mean? - Quora
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Why are some automatic transmissions very jerky, whereas others are very smooth? What exactly is responsible for this 'smoothness'? - Quora
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Jerky Shifting into 3rd and 4th Gear in my 2012 Cayenne S - Page 2 - Rennlist - Porsche Discussion Forums
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