What are the reasons for a car's lack of acceleration when the RPM increases but the speed doesn't?

1 Answers
MacTucker
07/29/25 2:45pm
Here are the related reasons for lack of acceleration: Insufficient oil pressure: The oil pressure is insufficient, and the oil pump is not working properly. The oil filter or injector is clogged. Clutch component failure: At 3K RPM, the speed should be around 100, but if the car doesn't accelerate and feels powerless, it could also be due to clutch component failure (oil leakage or wear). The issue might be less noticeable when the engine is cold, but as the temperature rises (during driving), the problem may occur more frequently, even leading to a complete "stop" (when the clutch plate is completely burned out). Motor failure: The throttle body is stuck or the stepper motor is faulty. Catalytic converter blockage: There might be a blockage in the exhaust system or at the connection point.
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