Having problems with your 2003 Chevrolet Impala ?
Wipers seem to be missed timed. Sometimes the driver side wipe goes off the windshield and other times it doesn't go up far enough and the passenger side wiper hits it.
Linkage is worn and riding over itself ,no other answer other than to check the mechanism as you may be able to effect a engineering modification(Bodge)
Repair Help & Product Troubleshooting for 2003 Chevrolet Impala
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