What is the reset method for the wiper motor on the older GL8 model?
2 Answers
Turn off and remove the key when the first intermittent cycle occurs. Disconnect the wiper from the motor, loosen the screw on the rotating disk to detach it from the motor shaft, and repeatedly adjust the rotating disk. Adjust the wiper position without moving the motor shaft. Once adjusted, tighten the screws on the wiper motor shaft and the connecting rod. Turn the key to switch off the wiper, which should then reset to the lowest point on the windshield. Job completed.
I've been repairing Buick models for years, and resetting the wipers on older GL8s really depends on the specific vehicle condition. The usual method is to first get the wipers moving to the midpoint - timing is crucial here: turn the key to the ON position without starting the engine, activate the wiper switch to get them moving, and when the arms slide to the middle of the windshield, immediately turn off both the wiper switch and ignition. This allows manual adjustment of the wiper arm position - gently push it back to its initial position flush with the bottom edge of the windshield. Then restore power and test the wipers. The critical part is mastering the power-off timing - cutting power too early leaves wipers stuck mid-travel, too late and they return to original position. When manually repositioning the arms, apply gentle pressure - no brute force as the wiper linkage plastic components are brittle. After reset, always perform a water spray test to verify smooth return of the wiper arms.
