What Causes Poor Car Acceleration?

1 Answers
GenevieveAnn
07/24/25 11:21pm
Poor car acceleration can be attributed to the following reasons: 1. Carbon buildup: Excessive carbon deposits inside the engine reduce ignition energy and intake efficiency, leading to decreased engine power and poor acceleration; 2. Fuel system issues: Using mismatched fuel grades or blockages in the fuel tank vent, fuel lines between the tank switch and fuel filter can restrict fuel supply, resulting in a lean air-fuel mixture and weak engine acceleration; 3. Air intake system problems: Since air is a key component of engine power, a clogged air filter due to prolonged use without cleaning reduces airflow, causing an overly rich air-fuel mixture and diminished engine performance; 4. Engine overheating: Insufficient engine oil or coolant levels, along with faulty cooling systems, increase engine load and impair heat dissipation.
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