What Are the Causes of Weak Car Acceleration from a Standstill?
1 Answers
Weak car acceleration from a standstill can be caused by insufficient cylinder pressure, carbon buildup, clogged fuel injectors, etc. Insufficient cylinder pressure: Excessive wear of the cylinder or piston rings, as well as misalignment, sticking, or breakage of piston rings, can lead to insufficient cylinder pressure. Prolonged exposure to high temperatures can reduce the elasticity of piston rings, preventing them from effectively sealing the piston, which also results in insufficient cylinder pressure. Solution: Visit a 4S shop for inspection and repair as soon as possible, replacing parts or the cylinder if necessary. Carbon buildup: Carbon deposits can accumulate in the cylinder, throttle body, spark plugs, and intake system. These areas are crucial for the engine's power output. Excessive carbon buildup inside the engine reduces ignition energy and intake efficiency, ultimately decreasing engine power and causing weak acceleration and shaking. Solution: Have the carbon deposits cleaned at a professional repair shop. Clogged fuel injectors: Fuel injectors can become clogged due to carbon deposits in the engine or impurities in the fuel. Clogged injectors result in inaccurate fuel spray and prevent the formation of a well-mixed combustible gas, leading to incomplete combustion, reduced engine power, and issues like shaking or stalling. Solution: Replace the fuel injectors every 60,000 to 80,000 kilometers.
