Usually when the wipers are dry and have no water (rain) to lubricate the blades. It also could be that the rubber blade is folded over.
Squeaking, vibrating and bouncing is commonly called "chatter". It can be simply a byproduct of dry wipers on dry glass (no water (rain) to lubricate the blades). Most commonly and most likely however it's a sign of worn wiper blades that need to be replaced. As rubber gets older, it stiffens up and loses its flexibility and thus chatter begins. The last possibility, however unlikely, your wiper arms may be slightly twisted meaning that the wiper blade is not perfectly 90 degrees to the glass so the wiper blade doesn't properly "flop over" from side to side as the wiper arm sweeps. There are ways to adjust this, but I'd recommend starting with new wiper blades first and then looking into adjusting the arms if the chatter still persists.
Old or cheap blades.
Old, sun baked, dried up wiper blades
Yes, the Avalons were manufactured with wiper blades, what about them?
No, They don't You can have them replace and install wiper blades for about 14 Bucks
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How to replace Wiper Blades on 2003 Dodge grand caravan ?
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The replacement wiper blades will come with instructions on how to remove and install the wiper blades. Your owners manual should also have instructions if you don't follow the instructions on the replacement wiper blades.
There are a number of reasons why the wiper blades my fail to shut off. This mainly a problem with the wiring system or malfunction of the wiper sensors.Ê
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motor is working but wiper blades do not move.
My wiper blades have stopped working and the window washer isn't spraying out.