happens all the time - can't use it
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2007 Jeep Grand Cherokee Question: rear windshield wiper seems out of sync - wants to rotate beyond normal
Answer #1pushrod September 04, 2013, 20:17Master
Set wiper arm and motor in the parked, or off position, then tighten the nut at the base of the wiper ARM! It's most likely hidden under a plastic cover which can be lifted up or removed for access to this nut.
BOTH WIPER MOTOR AND WIPER ARM HAVE GOT TO BE IN THE PARKED/OFF POSITION BEFORE THGHTENING!!!