1985 4x4 single cab with a 22R. Wipers stopped working. Checked the 15 amp fuse and it was burnt. Replaced the fuse, burned again. I disconnected the wiper motor from the linkage and replaced the fuse and the motor runs well. So I removed the linkage and lubed the pivot points then reconnected everything and it worked for a week, then the fuse burned again. I tried a 20 amp fuse, but get no response. I removed the 20 amp fuse, worried that the wiring would burn. I think that the bushings where the wiper arms attach might be gummed
up and causing too much resistance in the motor for the fuse. The bushings do not seem serviceable but maybe someone has lubed them successfully? Any ideas are welcome.