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Windshield wipers stopped running. Fuse is good, motor runs. Blades work in-sync when moved manually. What must I do to either replace the motor with a working used unit or fix the present system?
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I would move the wipers up about halfway across the windshield, replace the fuse and try the wipers. I suspect the linkage is out of sync as to where to stop. If it's trying to rotate the blades further down, rather than stopping in the correct position, that could blow the fuse. Do NOT put a larger amp fuse in the box, you'll burn up the wiring.
Possible wiper linkage has broken/seperated from wiper motor. The wiper cowling covering the linkage assembly will need to be removed to inspect/repair
If you hear the wiper motor running but the blades do not move then the linkage grommet that connects the two wiper arms to the motor needs to be replaced. If you don't hear the motor running it could be a loose connection, a bad switch, a blown fuse, a burned or shorted wire, or a bad motor. Only an electrical multimeter and patience will sort out an electrical issue.
loosen the nut at the bottom of the blades so that the wiper motor will work without moving the blades. cycle the wipers and allow the motor to come to the rest position. Fit the blades and tension the nut. Pull the arms off the windscreen and cycle the wiper motor to run until it stops put the wipers back on the screen and see where they are. IF parked properly then OK but if any where then replace the wiper motor as the sequencing gear inside is out of sync with the wiper action.
The motor is going bad or the gear is getting wore you can visually check the connection to the wipers from under the hood by applying alil pressure to the wiper blades see if the motor keeps pushing or stops but depends on the year of the car it is typical for the motor and or relay to be bad
Without the engine running, turn wipers on and listen for any motor running. If you don't hear any noise, then check in your owners manual for the location of the fuse. If you do hear a noise, but no wipers, it could be that the wiper arm has come loose under the cover that is over you wiper blades.
Try to run a ground test on the motor, If it gets power, then you neeed to replace the switch.. if it doesnt run with the ground test, then you need a wiper motor.
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