How to adjust the wipers on an old Buick GL8?
1 Answers
Turn the key to ACC, turn on the wiper switch to the first intermittent position, which is the slowest setting. When the wipers pause after one sweep, turn off and remove the key. Check whether the gap between the small locking tab of the positioning adjuster and the vertical stop is between 4-8mm. Loosen the nuts on both wiper arms, pull out the left and right wiper arms, adjust the gap, and then tighten them.