What Causes Power Loss After Changing Transmission Fluid?
2 Answers
The reasons for poor power performance after changing dual-clutch transmission fluid include: obstructed oil passages, insufficient clearance between brake pads and discs, inferior oil quality, dirty throttle valve, and low tire pressure. Warning signs indicating transmission fluid replacement are: vehicle vibration and gear shift jerking; transmission overheating warning on dashboard; engine stalling; abnormal noises. Methods for changing transmission fluid are as follows: Drain by loosening the drain plug at the bottom of the transmission before refilling. Remove the transmission oil pan directly for draining and refilling: This method achieves more thorough replacement than the previous one by removing impurities from the pan bottom. Automatic transmission fluid replacement using circulation machine: Dynamic oil exchange with intelligent circulation equipment can filter and clean sludge contaminants inside the automatic transmission. Hazards of prolonged transmission fluid neglect: 1. Damage to transmission shift control mechanisms; 2. Abnormal wear of transmission gears and clutch plates; 3. Impaired transmission operation leading to valve body damage.
Hey, I've encountered this issue a few times. After changing the transmission fluid, the car feels sluggish. It might be due to using the wrong fluid type—for example, if your car requires low-viscosity fluid but you added high-viscosity fluid, the delayed shifting can make it feel underpowered. Fluid level is also crucial: too little and there's insufficient pressure, too much and you get foam, both affecting smooth pumping. If air wasn't properly bled during the fluid change, bubbles in the system can hinder power delivery. Not replacing the filter or leaving old residue can clog the fluid passages. Even technician errors, like improperly connected sensor plugs, can cause issues. My advice? First, check the manual for the correct fluid type and level. If that doesn’t help, take it to a professional shop for a proper air purge and inspection—avoid DIY fixes that might damage transmission components.
