Is it normal for a car's engine RPM to increase but the speed doesn't when accelerating?

[SanRachel]

It is abnormal for a car's engine RPM to increase but the speed doesn't when accelerating. Possible causes include clutch damage, which requires timely inspection and repair. Definition of automotive repair: Automotive repair is a general term for vehicle maintenance and repair. It refers to the process of troubleshooting faulty vehicles through technical means, identifying the cause of the failure, and taking measures to eliminate the fault and restore the vehicle to certain performance and safety standards. Overview of automotive clutch: The automotive clutch is located in the flywheel housing between the engine and transmission. The output shaft of the clutch is the input shaft of the transmission. During vehicle operation, the driver can press or release the clutch pedal as needed to temporarily separate or gradually engage the engine and transmission, thereby interrupting or transmitting the engine's power input to the transmission.

[DelBrielle]

I've encountered this situation too. The engine roars and the RPM climbs, but the car just won't pick up speed—definitely something wrong. For manual transmission cars, it's most likely worn-out clutch plates slipping, preventing power from reaching the wheels. With automatic transmissions, it's more complicated—could be torque converter or internal transmission issues; sometimes clogged fluid passages or stuck control valves cause this too. My old Jetta had this exact problem—when the mechanic opened it up, the clutch plates were worn paper-thin. Other culprits could be a broken driveshaft U-joint or differential failure disrupting power transfer. Remember, don't force it—driving further risks frying more components. Get it checked at a reputable shop ASAP. Safety first.

[LeilaniFitz]

My automatic transmission SUV had the same issue last month - the RPM would shoot up when I stepped on the gas, but the speed just wouldn't increase no matter what. It was really frustrating to drive. This situation most commonly indicates transmission problems, such as torque converter slippage or internal gear wear. However, it's also necessary to check if the driveshaft connection is loose, especially in older vehicles which are prone to this issue. Another possibility is differential problems preventing power from reaching the wheels. I once encountered this while driving and had to pull over immediately. It ended up costing over a thousand yuan to replace the torque converter at the repair shop. My advice is don't delay if you experience this - get it checked promptly, as sudden power loss on the highway can be extremely dangerous.

[LeBeau]

This is absolutely abnormal! The engine is revving so fast but the car can't pick up speed, clearly there's a problem with power transmission. For manual transmission cars, you should suspect clutch slippage, especially in older cars with over a hundred thousand kilometers on them. Automatic transmissions are more likely to have gearbox issues, such as stuck control valves or oil pump failures, which can cut off power transmission. Additionally, problems in the drivetrain like damaged universal joints can also cause power loss. I once repaired a car where the transfer case gear wear caused complete loss of power to the rear wheels, and it was only fixed after replacing the parts. Don't underestimate this issue—it's really dangerous on the road.

[VonPaige]

Last time I drove my brother's manual transmission car on the highway, I encountered this situation - the engine roared when I stepped on the gas, but the speed was stuck at 60 km/h and wouldn't go up. Later we found out the clutch disc was completely worn out, causing severe slippage - essentially all the power was wasted on free spinning. For automatic transmission cars, this is usually caused by torque converter or oil circuit problems, especially if the transmission fluid hasn't been changed for too long. Also, broken front-wheel drive axles or loose rear-wheel drive propeller shafts can cause similar symptoms. I remember a mechanic once told me that whenever you notice the RPM and speed don't match, you should stop and check immediately. Forcing it to drive could burn out the transmission, and that would cost a fortune to repair.

[DelJake]

I often encounter car owners complaining about this during repairs: the engine revs up but the car doesn't move, which is basically a power transmission issue. For manual transmissions, prioritize checking the clutch disc—if it's worn beyond three millimeters, it will definitely slip. For automatic transmissions, focus on inspecting the torque converter lock-up mechanism or valve body malfunctions. Additionally, damaged driveshaft splines or broken differential gears can also interrupt power delivery. Once, we disassembled a car and found the driveshaft universal joint shattered, completely cutting off power transmission. Remember, never continue driving in such cases as it can lead to more severe failures. The safest approach is to have a professional technician check the fault codes with a diagnostic tool.