Why is the car window rolling up and down slowly and weakly?
3 Answers
Window rolling up and down slowly and weakly reasons are as follows: Low voltage: The reason why the window can roll up and down is driven by the window regulator. If the car battery voltage is too low, it may cause the window to roll up and down slowly, which means the car has not been driven for a long time, and the battery will discharge. Therefore, if the car is not driven for a long time, the battery should be charged to maintain sufficient voltage, and this problem will not occur. Circuit problems: It should be noted that there are many components inside the door. If the door is slammed hard, it may cause some components to loosen, resulting in poor switch contact. Coincidentally, the window rolling up and down is controlled by electricity, which is why the rolling up and down becomes sluggish.
When I drove my old car, I encountered the issue of extremely slow window movement, taking forever to close, which was especially frustrating during rainy days. This is usually caused by dirty window tracks or debris buildup, leading to insufficient lubrication over time. I tried cleaning the tracks and applying some lubricant, which restored normal operation, but sometimes it's due to aging window regulator motors or poor electrical connections, requiring checks on fuses and switches. Regular window maintenance can extend their lifespan, such as cleaning every six months to prevent foreign objects from entering. It's best to inspect before the rainy season to avoid sudden malfunctions affecting driving. Stuck windows aren't just annoying—they can pose risks in emergencies if they fail to close, so don't delay. Visit a repair shop early for peace of mind and safety.
I think fixing slow power windows yourself is quite simple. First, check if the window tracks are clogged with dust and debris, clean them thoroughly, then spray some lubricant like WD-40. If the issue lies with the switch or motor, remove the door panel to inspect for loose wiring connections—tighten them if necessary. Weak lifting force is often caused by an aging motor with insufficient output or worn-out guide rails, requiring replacement parts when needed. This process requires some tools like screwdrivers and cleaning brushes, but can save significant repair costs. Don't neglect regular maintenance, especially cleaning promptly after driving in dusty areas, as this effectively prevents recurring issues.
