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Re: Power Window Goes Down Only[740-760/1989] posted by Don Foster on
Thursday, 30 July 1998, at 6:12 a.m.

Matthew ---

Have you checked the switches? They're easy to move around.... move a known-good switch to that location and try again. The switch in the driver's door controls the current to the passenger's switch (to prevent both switches asking for the opposite thing and creating a short).

The switches are easy to disassemble and clean -- I've done maybe 15 of them successfully.

  • Pop the rocker off. (Work over a surface that will contain little parts.)
  • Inside you'll find two metal toggles, two ball bearings, and two springs (may be up inside the plastic rocker).
  • Use a small, stiff-bristle brush and some solvent (rubbing alcohol should work) to scrub out the gunk inside, and clean gunk off the metal toggles.
  • Use a clean pencil eraser to polish the button contacts inside the switch body and the toggle contacts.
  • Drop the toggles into position inside the switch body.
  • Push the springs into their holes on the plastic rocker, and "stick" the balls to the spring ends with a dab of synthetic grease or Vaseline.
  • Carefully snap the rocker into the switch body.
  • Before plugging the switch into the harness, rock it several times and convince yourself it's assembled correctly -- a few of the times I've done it, a ball bearing had slipped out of position -- I had to try again.

I've never failed to restore a power window switch this way.

--



 


©Jarrod Stenberg 1997-2007. All material except where indicated.



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