What Causes Manual Transmission Vehicle Shaking During Start-Up?

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Reasons for manual transmission vehicle shaking during start-up: 1. Normal phenomenon: When the clutch is released to the semi-engaged position, the vehicle may exhibit shaking, known as the car's creeping phenomenon. If starting on a slight slope without applying throttle, the shaking will be more noticeable; 2. Driver issue: Improper coordination between throttle and clutch, either insufficient throttle application or too rapid clutch release. The solution is to apply some throttle before fully releasing the clutch, which improves power delivery, makes starting easier, and reduces shaking; 3. Vehicle malfunction: Problems in any of the three systems - intake system, ignition system, or fuel system - can cause shaking during start-up. Examples include uneven engine cylinder operation due to poor fuel delivery, uneven operation from dirty throttle body restricting airflow, damaged high-tension wires or faulty spark plugs, and unstable engine operation.