What Causes Automatic Transmission Cars to Shake During Startup?
1 Answers
Automatic transmission cars may shake during startup due to the following reasons: 1. Dirty throttle body causing uneven airflow and rough operation; 2. Fuel delivery issues leading to inadequate fuel supply at low throttle, resulting in uneven cylinder operation; 3. Transmission malfunction preventing proper operation. The correct startup procedure for automatic transmission cars is: 1. Turn the ignition key to the power position to initiate the vehicle's computer system self-check for approximately 6 seconds; 2. Press the foot brake and shift from P (Park) to N (Neutral), then turn the ignition key to start the engine; 3. Press the foot brake, release the handbrake, shift from N to D (Drive), and gradually release the foot brake.