I had a similar problem. No intermittent or low speed. Turned out to be a weak ground at the wiper motor as it grounds via the mounting post.Hello,
The windshield wiper switch on my 1986 LeBaron 4-door, no tilt steering, with 2.2 TBI has died and the wipers only work in low speed. Tried posting in the parts wanted section but I don't have sufficient privileges, probably because I have not posted in a looooonng time. Can someone assist?