Power Window Not Working? Here’s Why | Tire Source
Power windows are undoubtedly more convenient than the manual crank windows of the past. They are also more likely to fail due to the additional components that make them work.
Fortunately, power window issues can easily be fixed at your local car care center. It’s helpful to know the common causes of power window failure, so you can effectively communicate the issue to your repair specialist.
The Window Is Stuck
You push the button; nothing happens. This is inconvenient when you’re at a drive-thru and can’t lower your window. It’s even worse when it’s stuck open, and you’re at the mercy of Northeast Ohio weather.
So, what’s the problem? That depends. Do you hear any sounds when you press the button?
- No sound: This could indicate a blown fuse, faulty switch, or wiring issue.
- Grinding or whirring sound: This sound, combined with no window movement, indicates the window regulator is failing. A window regulator is the mechanical assembly inside your car door that raises or lowers the window. It’s different from the window motor, which powers the regulator.
Regardless of which issue is plaguing your vehicle, your auto technician has the solution to get your power window working again.
It Makes Odd Sounds
A properly working power window makes a tiny hum, at most. If your window is making other sounds, it’s a sure sign that something is wrong.
- Clicking. You may have a cable that’s slipped off its pulley or a plastic guide that has cracked.
- Grinding. There are likely metal components rubbing against each other due to worn gears, a bent track, or frayed cables.
- Popping. The glass may have detached from the clips that usually hold it in place.
Continuing to operate a window when it’s making these sounds could make the problem worse, so you’ll want to take your vehicle in for service as soon as possible.
The Window Moves Slowly or Unevenly
Normally, a power window moves smoothly at a steady speed. If the window regulator fails, it can cause the window to move too slowly, possibly due to debris in the tracks or worn components.
A window that’s struggling to move upward but glides down fine, or moves up fine but lags coming down, could be experiencing intermittent failures. That’s a sign that if you don’t have a window regulator problem yet, you’re about to. It’s best to service the window now before the problem gets worse and the repair becomes more complex.
The Window Slides Back Down
If your power window rolls up fine but slides back down instead of staying in place, that’s a classic sign something is wrong with the window regulator. The cables may be stretched or detached from their pulleys, causing the regulator to lose its grip on the glass. You might also notice that the window looks off, with one side sliding lower than the other or the whole window leaning in or out. That could mean that one pulley detached while the other one is still hanging on. Your auto technician can pinpoint the issue and ensure your window stays up.
The Button Works Intermittently
If your button is working inconsistently, it could be a problem with the button itself, but it’s more likely that the window regulator is again the source.
When window regulator components wear down or rub against each other, it can increase friction and load on the window motor. This can cause the motor to draw too much current, exceeding the circuit’s capacity. If that happens, you could get an inconsistent response, or you might trigger the window’s built-in protection features, which cut power to the window motor.
The best way to determine whether the button or the window regulator is causing the problem is to bring it to a qualified technician.
Repairing a Power Window
When you bring your car in for a window repair, the technician will remove the door panel to access the components and replace any worn or damaged parts. On modern vehicles, that may mean replacing the entire window regulator unit.
The repair shouldn’t take more than a few hours, and it’s best left to professionals with the right tools, equipment, and experience to properly position the glass without damaging any parts.
Power Window Repair and More
If you’re in the Canton-Akron area, bring your vehicle to your local Tire Source location. We handle full-service automotive repair, including power window repair.
If your car window is clicking, sticking, or just acting up, bring your vehicle to the automotive experts at Tire Source. We do more than just tires; we take care of the whole car.