Why does the Buick Verano have high RPM but cannot accelerate?

[Sá]

When the engine RPM is high but the speed cannot increase, it must be an issue with the clutch or transmission, as the power generated by the engine is not being transferred to the wheels. Engine Characteristics 1. The engine valve drive mechanism adopts a hydraulic support roller rocker arm structure. Compared to the commonly used hydraulic lifter valve drive mechanism in modern gasoline engines, this innovative valve drive mechanism has the advantage of relatively lower friction torque, thus requiring less driving force. This effectively reduces engine power consumption and lowers fuel consumption. 2. To significantly reduce the overall vehicle weight, the 1.4-liter gasoline engine uses an aluminum alloy cylinder block, achieving a notable lightweight effect.

[McPiper]

I'm a Buick Verano owner who recently experienced a similar issue. When driving at 60km/h, the engine RPM suddenly surged to 3500, but there was no acceleration response, making overtaking difficult. After checking, possible causes include transmission slippage, clutch wear leading to power transmission failure, or a clogged air filter restricting airflow and throttle body carbon buildup causing sluggish throttle response. This problem is particularly common in automatic transmission vehicles. First, check if any warning lights are illuminated on the dashboard, such as the engine malfunction indicator. I tried cleaning the throttle body and air filter, but saw little improvement. Later, a diagnosis at the 4S dealership revealed insufficient transmission fluid levels causing system misjudgment. Regular transmission fluid changes during maintenance are crucial—don't wait for problems to arise before fixing them. Remember, high RPM without corresponding speed increase usually indicates power interruption. Address it promptly to prevent further damage, and I recommend having it inspected at a professional repair shop within a week to ensure safety.

[JamesonAnn]

I'm used to fixing my own car and have encountered issues like the Buick Verano's high RPM and slow acceleration. It's usually a problem with the drivetrain, such as clutch slippage or degraded transmission fluid affecting hydraulic performance. First, pop the hood and check the transmission fluid level—pull out the dipstick to inspect its color and texture. If it's dark or has a burnt smell, change the fluid immediately. Don’t forget to inspect plug and wire connections, as a faulty sensor (like the vehicle speed sensor) can confuse the ECU. I once replaced a sensor and solved a similar issue. Engine carbon buildup could also be the culprit—regular throttle body cleaning helps prevent it. Clutch issues are the trickiest, though, requiring professional tools for adjustment. If DIY isn’t an option, call a mechanic to avoid further damage. Bottom line: handle minor maintenance yourself, but leave major problems to the experts.

[DeAvery]

After decades of driving, I've also encountered situations where the Buick Verano's RPM rises without corresponding speed increase. This usually stems from transmission or clutch issues - automatic transmissions are particularly prone to slippage, and worn clutch discs can cause free spinning. It might also be due to insufficient fuel pump supply or electronic system misreading RPM signals. I recall similar cases when driving older cars in my youth being caused by seized drive shafts, though modern electronic controls add complexity. The proper approach is to connect an OBD scanner to read trouble codes rather than guessing. For safety, avoid sudden acceleration on highways and proceed slowly to a repair shop. Preventatively, have your transmission system inspected and cleaned every 20,000 kilometers to extend its lifespan and avoid headaches.