Why does the car feel sluggish and slow to accelerate?

1 Answers
KylieLee
07/29/25 3:25pm
Here are the reasons why the car feels sluggish and slow to accelerate: Carbon buildup in the engine. Carbon deposits blocking the intake valves can affect the amount of air intake. Reduced air intake with unchanged fuel injection leads to fuel wastage and decreased power. Spark plugs need replacement. If the spark plug electrode gap widens, severe carbon buildup occurs, or part of the electrode burns away, it can result in insufficient ignition energy. Insufficient energy leads to improper ignition timing, delayed ignition, incomplete combustion, increased fuel consumption, faster carbon buildup, and reduced power. Clogged intake or fuel system. Typically, this happens when the air filter or fuel filter is not replaced for a long time, becoming too dirty and causing restricted air intake or fuel supply, which in turn reduces power.
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