Linkage that connects the motor to the arms, stripped or loose.
Probably the bolt holding the rods on ,in the rear of thr wiper motor,if ok and thight then wiper motor plastic gears are broken due to ice or snow stressing the wiper blades ,that is why is a good idear to free up blades before turning on wipers in cold weather
SOURCE: 1996 honda accord windshield wipers
Sounds like the wiper arm has become disconnected. There may be a clip or bushing that has broken or fallen off. The wiper motor/arms etc are accessible by taking the cover off (usually plastic and possibly held in by screws or large plastic slots) that's at the base of the windshield. You may have to lift the hood for access and removal. Just take your time and don't force anything.
It's really simple after that. You turn your motor on and look for moving parts, that'll be the wiper motor. Either it's disconnected at the motor or it be disconnected on the arm. Usually one arm will move both wipers. If you're lucky, maybe it's just fallen off and you can find the clip or bushing and re-attach it. Otherwise, you may have to get a new part, which in this case would probably come from the dealer.
You may possibly also get it from a junkyard, but chances are if it's a small part, then they may not sell it to you. However some junk yards WILL sell you these small parts, and others may even let you pull the part yourself. If you could do this, you could also see how the part properly attaches.
If it's confusing how to re-attach the parts, then you may have to buy a Haynes or Chilton manual to see exactly how everything looks. Diagrams would be great. If there's no good pix in the manual, then try online. The best would be to see fully functional operating wipers on a similar car. Maybe find a buddy to take a peek at his after you practice on yours.
The part if broken should fit multiple years of your make of car.
Get this fixed soon because not only will it not pass inspection, but it is highly unsafe.
SOURCE: 99 Yukon windshield wipers
We had the same problem and sometimes they wouldn't turn off. The intermittent wipers were random. We replaced the wiper motor. Be sure to get the motor with two balls on the wiper shaft (one for each wiper arm). If you can't find it, you'll have to change the part out on the new motor. Keep the wiper arms in the same location on removal, or it will jam and you'll have to start over.
SOURCE: front wipers stopped working but you can hear the motor run also
If the wipers were buried under snow/ice or frozen to the windshield, you may have blown the red 10 amp fuse located in cavity 9 in the fuse block located on the bottom left side of the instrument panel near the parking brake pedal.
In order of easiest to check:
1) ensure wipers not frozen to windshield.
2) ensure wiper arms are not loose on the pivot stud,
3) check the red 10 amp fuse.
You stated that "you can hear the motor". Which motor do you hear? The engine or the wiper motor?
If you hear the wiper motor, then the fuse is alright. Try 1) and 2) above.
PT Stanley
SOURCE: The rear wiper on my 99 Bravada has quit working.
Unscrew inside panel on tailgate (3 screws-1 each side, 1 in the middle), unclip and remove by pulling up and out towards the rear. Unscrew all screws holding steel plate down, unclip plastic clips that hold the rod running behind the plate and unhook rod at top of that opens the window. Unclip wiring harnesses, remove wiper from the outside (1 nut holding it down)and unbolt the motor. It is pretty self explanatory once you have the steel plate removed, just remove and install the screws and clips in the same order and try it out before you put all your screws back into the steel plate since there are so many. Back window must be closed for wiper motor to work. To save yourself from replacing the motor with a new one, 9 out of 10 times it is simply the locking washer has come off of the gear inside the motor, if you pop off the plastic motor cover you will see the washer is off the gears are out of place. I realigned the gear and replaced the washer with a "C" clip and it has been working great for over a year!
SOURCE: Windshield wipers stopped working, can hear motor
the wiper motor linkage is broken you will need a new one. this is a common problem.
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