Fix It and keep it

It starts off slow, first the window starts to close slower and then, after a few months the window will be noticeably slower in both directions. No, spraying WD-40 inside the door won’t help. The only thing that will fix it is to replace the unit that raises and lowers the window, called a regulator. The window regulator is essentially a slide mechanism with a cable coming out of each end and an electric motor in the middle to drive the slide either up or down.


Once the slide wears out it creates drag on the cables and motor slowing down the window.
Replacing the window regulator is a fairly straight forward job.

1) First thing to do is remove the inside panel off of the door and unplug both electrical connectors in the door armrest that go to the window switches and power locks.

2) Carefully remove the plastic vapor barrier, it is stuck on the door with a non-hardening rope caulk and it will peel away easily.

3) Once the plastic vapor barrier sheet has been removed you will see the window regulator and the window attached to it. You will have to position the window so you can get to the two bolts that hold the window to the slide. Once you can get at the bolts, all 10 MM bolts and nuts, and support the window while loosing the bolts and lift the window out of the door.

4) With the window removed from the door you will be able to remove the window regulator easily. Looking at the regulator you will see four nuts holding it to the door. Remove all of them from the bottom up and take the regulator out through the largest opening in the door panel.

5) Once the old regulator is out install the new one in reverse order.

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6) After attaching the wiring harness to the new regulator run the regulator window mount down to where you can access the bolts to install the window. When you attach the window be sure to square it up on the regulator mount. Now run the window up slowly and see how the window lines up in its tracks. When the window closes it should contact all of its edges equally and you will have to loosen the window regulator and move it around slowly until the window becomes square in its track. Once square tighten the window regular and run the window up and down watching to see that it hits the closed position square.

7) Double check that all of the hardware has been put back on then re-attach the plastic vapor barrier, connect the wiring harnesses and attach the inside door panel.

When I replaced my window regulator in my 1995 Toyota Corolla a couple of years ago it cost me $375.00 at the dealer for just the regulator and motor, I still had to install it. Now Toyota Corolla power window regulators are offered on E-Bay for under fifty bucks!

This entry was posted on Wednesday, December 31st, 2008 at 6:45 pm and is filed under Toyota, Toyota Corolla, Toyota Matrix. You can follow any responses to this entry through the RSS 2.0 feed. Responses are currently closed, but you can trackback from your own site.