What are the reasons why a car cannot accelerate when the throttle is pressed?

1 Answers
SanSilas
07/24/25 9:30am
The reasons why a car cannot accelerate when the throttle is pressed include: 1. Use of inferior spark plugs or degraded spark plug performance; 2. Blockage of the catalytic converter or intake/exhaust pipes; 3. Low gasoline pressure or engine misfiring; 4. Excessive carbon buildup in the engine. Below are some precautions when pressing the throttle: 1. Avoid pressing the throttle deeply when starting a cold engine: After a car has been parked for 4 hours, the engine oil will completely flow back to the oil pan. When starting the engine at this time, the oil pump needs some time to lubricate all parts. If you press the throttle deeply and start the car without waiting for proper lubrication, severe wear may occur on engine parts without oil protection. Therefore, avoid pressing the throttle deeply when the car is cold, especially in winter. 2. Avoid pressing the throttle sharply in congested areas: Sometimes, to prevent others from cutting in or overtaking, you may need to press the throttle deeply to keep up with the car in front. However, rapid acceleration often requires rapid deceleration, meaning the harder you press the throttle, the harder you need to press the brake. Prolonged use of this driving style will increase the load on the brake pads, brake discs, and brake calipers, reducing their service life.
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