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Re: why isnt my windshield wiper working?
Easy fix. Very very common chevy issue. the wiper motor goes but no wipers, or they work one time and not the next. drove me nuts for two years. It is the wiper control module. The board actually get moisture in it cracks the sod-er joints they are there go get magnifying glass. hair line cracks in the board. how ever good new auto zone advance auto who ever carries the board 30 bucks. located back of the fire wall by the wiper motor. three torx screws. remove torx. care full not to bend prongs when pulling board. replace with new screws and cover and board. seal new cover with silicon rtv so forth to re prevent moisture. when it rains, rain drops on this board by the top crack and will reoccur. but this is sure fix. did my truck and my buddies. Make sure to use silicon or don't waste your time. Been good ever since 1 year now.
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The windshield motor is connected to the windshield wiper's arms via mechanical linkage. The linkage had been severed. There's a lockpin that secures this linkage. If rust/corrosion had built up on this lockpin, it may had fallen off. Buy a Haynes or Chilton manual to see how to access the wiper motor area.
Wiper motor rarely goes bad, and a second one going bad as well is extremely rare. What will burn out a motor is very high resistance to movement from the wiper assembly. Do the following: Take out the wiper motor, and move the wipers by hand to see if they are hard to move, or if the arms (rod mechanism) are rubbing against anything. Do this with the blades in normal position, resting against the windshield. Pour water unto windshield while testing it, to avoid scratches. One telltale sign for this condition, is the wipers going too slow before complete stoppage. Either that, or an electrical connection leading to the wiper motor, for that simply check that there is electricity in the wiper motor connector when wipers are activated.
I am not sure on this specific vehicle but the wiper motor on all cars connects to linkage to convert the motor energy to the wipers. Most likely what happened if you here the motor moving is the linkage came loose from the motor. This is usually an easy fix once you find the motor it is usually on the drivers side fire wall up high under the hood.
This sounds like the wiper motor has failed. You can pick one up at the local parts store. If not mechnically savvy, I would recommend taking to shop for working in tight areas that these can be. But, otherwise, the motor is on the fire wall, unplug, remove screws(4), exchange with new, and reassemble as removed. I hope this helps.
Under the cowl (it is a plastic piece that the windshield wipers come out of) are the wiper arms that connect to the wiper motor. There are plastic parts that hold the wiper arms to the wiper motor. Lots of time these plastic parts dry out and break and the wiper arm will fall off the wiper motor. I would bet if you tried to move one of the wipers by hand both of them would move with little resistance. This would tell me that the wiper arms are disconnected from the wiper motor. The parts to fix this are easy to get. I know the motormite HELP line of parts used to have the plastic bushings to fix this problem.