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What are the reasons for an automatic transmission car not accelerating when stepping on the gas?

1 Answers

Brandon

07/29/25 10:47pm

Automatic transmission car not accelerating when stepping on the gas may be due to fuel supply system failure, failure to control fuel pressure, fuel injection volume or ignition timing as required, or problems with spark plugs and high-voltage wires. Fuel supply system failure: The biggest power source for car acceleration is the engine, and the engine is driven by fuel. Therefore, if there is a problem with the fuel supply system, the speed naturally cannot increase normally as required during rapid acceleration. Failure to control fuel pressure, fuel injection volume or ignition timing as required: During rapid acceleration of the car, fuel pressure, fuel injection volume, and ignition timing are all critical factors. If these three points do not meet the specifications, it is very likely that the car's speed cannot increase. Problems with spark plugs and high-voltage wires: Spark plugs and high-voltage wires are important components of the car. The main function of the spark plug is to generate sparks to ignite the mixed gas in the cylinder, thereby increasing the car's speed. Therefore, when there are problems with the spark plugs and high-voltage wires, the speed may not increase during rapid acceleration of the car.

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