Windshield wiper motor
1963 Cadillac Series 62. I have a couple of problems: It is raining in Southern California – a rare problem, but it happens. On the wipers, they stop randomly in the cycle and just sit there for a while, then start up again and stop. At first I can get 2 or 3 complete wipes, then as time goes on, less and less. I am starting to think – bad ground - where does the ground connect? Is this powered all the time and the switch completes the ground? What cha think??
The switch is grounded and that is what operates the motor. There are 2 mount pins that ground the switch to the dash frame. Use a jumper wire with alligator clips to find out what component is suffering from a bad ground.
The motor has constant power. The motor is grounded as well, so check that also. The shop manual shows the motor ground strap.