What Causes the Engine RPM to Increase but Speed Doesn't When Pressing the Accelerator in Winter?
2 Answers
The reasons why the engine RPM increases but the speed doesn't when pressing the accelerator in winter are: 1. The transmission hydraulic oil level is too low or too high; 2. The clutch or brake friction plates and brake bands are excessively worn or burnt; 3. The oil pump is severely worn or there is a main oil circuit leak; 4. The clutch or brake piston seal ring is damaged; 5. The shock absorber piston seal ring is damaged. The solutions for this issue in winter are: 1. Add or reduce transmission fluid; 2. Add lubricant to the automatic transmission or replace damaged components; 3. Conduct a thorough inspection of the transmission oil circuit and repair it promptly; 4. Replace the clutch or brake piston seal ring of the transmission; 5. Replace the shock absorber piston seal ring.
When driving in winter, I press the accelerator and the engine revs shoot up, but the car still moves sluggishly, which is quite frustrating. It might be because the weather is too cold, and the transmission oil becomes as thick as paste, greatly reducing transmission efficiency; or there could be ice and snow on the road, causing the tires to spin wildly without moving, wasting all the power on idling. My own car had this issue, and later I found that clutch wear worsened the slipping. I suggest everyone warm up their cars for five minutes before heading out in cold weather to let the engine warm up a bit; regularly check tire pressure and transmission fluid levels to ensure there are no blockages from impurities; and avoid slamming the accelerator while driving, opting instead for smooth acceleration to reduce the risk of slipping. This way, you can both protect your vehicle and ensure safe driving.
