What a week...
First the AC on a road trip, now that I am home, the wipers just decided to stop working. Im guessing its either the switch, the relay, a fuse, or the motor itself...but I have no idea how to diagnose such an issue, for now its rain-x and prayer....any help in this department would be, as always , appreciated greatly.

cheers
dave

 

sorry its a 1987 b150 318. and since I just thought of it. my drivers side window only works sometimes and is painfully slow when it does work...are the two related...hmmm I wonder. If you cant tell im still new to this even a year later. ha

thanks

 

First check the fuse.
Second check for power to the fuse slot. One side will have power with the key on. If power there go to the motor and check for power with the key on and switch on. (If no power then check the fuse links behind the brake booster.) If you find power there then replace the motor. If no power then go to the switch and check for power to it and continuity to the motor from the wires between the switch and motor.