Why does the Sagitar's RPM increase but the speed doesn't rise?
2 Answers
Sagitar's RPM increases but the speed doesn't rise, which may be due to problems with the clutch or transmission, preventing the engine's power from being transmitted to the wheels. Here is an analysis of the reasons why the Sagitar's RPM increases but the speed doesn't rise: 1. The engine's power is first transmitted to the clutch. If the clutch plate is severely worn or the clutch pressure plate spring is damaged, it can cause incomplete power output, resulting in a mismatch between the engine's power and the output power. 2. If the transmission is not engaged in the corresponding gear, for example, the gear lever is in the 5th gear position, but the transmission gears are only engaged in the 2nd gear position, it can also cause the RPM to increase without a corresponding rise in speed. This is commonly referred to as gear misalignment, and such problems are often accompanied by the inability to engage reverse gear. 3. Check if the automatic transmission is faulty: Move the gear selector to different positions and drive the car. If the engine RPM suddenly increases when the automatic transmission shifts to a certain gear, but the speed doesn't increase accordingly, it indicates that the gear is slipping. The more easily the engine RPM increases during slipping, the more severe the slipping is.
With over 20 years of car repair experience, I've seen many cases of Volkswagen Sagitars having high RPM but failing to accelerate. The most common issue is clutch slippage, especially in manual transmission models. If the clutch disc is worn thin or contaminated with oil, the engine will rev without transmitting power to the wheels. For automatic transmissions, it's usually torque converter or internal transmission failure – insufficient oil pressure or stuck valve bodies can cause power loss. The brake system should also be checked; seized calipers or engaged parking brakes can make the wheels drag. Finally, look for signs of tire slippage – spinning without moving is quite dangerous. Don't push it in such situations; get it professionally diagnosed immediately, or you'll face skyrocketing fuel consumption and transmission damage.
