The driver's side windshield wiper just stopped moving on my 1993 Geo Metro. The other one still works fine, but the one on the left side feels as though it has become disconnected. It swivels freely...
In your car, a single wiper motor powers a linkage that drives both your windshield wipers. However, joints in that flexible linkage can fail. When that happens, one of your wipers will not longer operate properly. If the linkage has broken completely, the wiper will act like you've described--it'll swivel easily by hand because it's no longer connected to the linkage.
On this car, your wiper motor should be under the hood, sticking out of the firewall. If you're not sure which is your wiper motor, have someone turn on the wipers while you listen and watch. It should be easy to spot the motor, even if you can't quite see what it's doing.
Disconnect your battery, and then loosen the bolts holding your wiper motor in place. Once the bolts are loose, pull it *gently* out of its hole. It probably won't come out all the way, as it will be attached to either one or two linkages, and you run the risk of bending them if you yank on the motor too hard. Once you can see the shaft of the wiper motor, have an assistant move the problem wiper by hand so you can see what's going on. Did the linkage slip off the wiper motor shaft, for example, or is the problem closer to the wiper arm? This observation should start to help you figure this out.
If, in fact, the linkage is bad, then the only solution is to replace it. First, remove one or both wiper arms, depending on whether you have one unified linkage or a small linkage for each wiper arm. You'll be left with little rotating stubs at the wipers. These are most likely bolted in place with external bolts. Take those off and gently push the linkage back into the cavity. You should now be able to pull the linkage out through the opening where the wiper motor was installed. It may require some creative positioning, but it should come out. If, by chance, the linkage won't fit through this hole, you may be able to get it out by removing one or more of the air intake screens and getting the linkage out through those passages.
Installation is the reverse of removal. You may wish you had very little hands to get the linkage bolts properly hooked up to the wiper motor.
One further tip: If you live near a "pick-a-part" salvage yard, which is a great place to find an affordable used linkage for this car, you can practice the linkage removal process on a dead car before trying it out on your own.
May 16, 2011 |
Geo Metro Cars & Trucks