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My car window is grinding? What’s wrong?

Grinding, popping, scraping – all signs that you have a power window problem and should stop using the window immediately. Anytime a power window talks to you (makes noise), there’s something wrong and it needs to be addressed.

In most cases, it’s the power window regulator that has failed and is what’s causing all the noise you hear in the door. This means that something within that power window regulator mechanism has broken and the cable has come un-tensioned and is now loose to cause trouble. In many cases, when the window regulator breaks, the window will simply slide into the door, but we’ve seen them get hung up everywhere in-between, depending on where the regulator broke.

A failing or broken regulator will give you symptoms that can’t be denied. Just about the time it’s ready to break, the regulator will grind and screech all the way up and all the way down. You may even experience slowing on the way up AND on the way down. It will slide into the panel on it’s own. It will start to raise and then “pop and drop” into the panel. HINT: The cable and clips are part of the power window regulator mechanism. The cable doesn’t just come loose and the clips don’t just break, as some shops would have you believe. That cable is tensioned onto the regulator and motor and doesn’t just come loose or fall off a pulley wheel. Pulley wheels break, cables come un-tensioned and then the next time you hit the button that cable is ripped through the system breaking everything in it’s path. That’s the truth of the matter.

Power Window Repair employs a proprietary repair of stainless steel and custom-fabricated parts to strengthen and fortify OEM regulators, offering our customers a more permanent solution to the inferior replacement window regulators found on the market today.

With this being said, if you have Nissan or a Mazda and you’re experience grinding noises, you may have a different problem altogether. The power window motors are often to fail in these vehicles. The plastic gear inside these motors can breakdown and shatter causing all kinds of weird noises and slipping of the glass.