Why does the car lack power when starting?

[PaigeRose]

The reasons for weak car startup are: 1. Excessive wear of cylinder liners, pistons, and rings due to prolonged use, leading to insufficient cylinder pressure, reduced efficiency, and engine weakness, usually accompanied by blue smoke from burning oil; 2. Incorrect valve timing, causing abnormal operation; 3. Issues with the fuel or electrical system; 4. Excessive carbon buildup in the intake manifold; 5. Carbon buildup or incorrect gap in spark plugs. Below are specific details: 1. Transmission clutch failure can cause weak car startup, as the clutch's role is to transmit and cut off engine power. 2. Manual transmissions, dual-clutch transmissions, etc., use friction disc clutches, which wear out over time, leading to slippage and resulting in weak car startup. 3. Additionally, dirty or insufficient transmission fluid can also cause weak car startup.