On the 2007 Saturn Vue, when only one side of the wipers are working, there can be a couple of different problems. First- check the wiper arm mounting nut at the base of the wiper arm. Make sure it is tight and that there are no signs of stripping. If stripped, you’ll see little metal flakes and/or rounding of the “teeth” on the mounting stud. If the nut is tight and there are no signs of stripping, then the problem will lie in the wiper transmission. There are “pivot balls” on the transmission that pop off and once they pop, they are not reusable or fixable and the wiper transmission must be replaced.
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