What Causes the Engine RPM Not to Increase When Accelerating?
2 Answers
Reasons why the engine RPM does not increase when accelerating: 1. Clogged fuel filter or fuel injector, causing the fuel pump to malfunction and insufficient fuel pressure; 2. Faulty clutch components, oil leakage or wear; 3. Throttle body or motor malfunction; 4. Issues with the exhaust system; 5. Electrical circuit open, short circuit, or poor conduction; 6. Use of low-quality gasoline. Solutions: 1. Replace the fuel filter or fuel injector; 2. Use high-quality engine oil. It is recommended to visit a 4S shop or a reputable auto repair shop to have a professional technician perform an inspection. Use a diagnostic tool to read the vehicle's fault codes to identify the issue and then analyze and repair it accordingly.
I've been driving and repairing cars for nearly twenty years, and this issue is mostly caused by engine problems. The intake system is clogged, such as the air filter being too dusty and blocking airflow, or the throttle body being dirty and stuck at a certain opening; the fuel pump isn't strong enough to pump fuel; the spark plugs are worn out and can't ignite; sensors like the TPS or MAF are malfunctioning and sending wrong signals; or a software update failed and caused a bug. If you encounter this, don't panic—first, go to an auto repair shop to check the trouble codes. If you prefer DIY, try replacing the air filter first—don't skimp on this small expense and compromise safety. Regular maintenance is crucial; cleaning carbon deposits can prevent future issues, otherwise, your car might break down halfway, which would be worse.
