Hello Ford Muscle Forum and Happy New Year!
Pulled the 289 and C4 on my 66 Fairlane for complete rebuilds. While they're gone I'm working on some wiring issues, one is a light located on the drivers side but is not a courtesy light and the other is the windshield wipers not working.
When I bought the car I discovered the windshield wipers did not work. Upon further investigation I discovered that the molded plastic was broke from the pot metal operating mechanism within the switch. That just sucked. Fortunately I found a NOS 2 speed switch on eBay. Got it, hooked it up, nothing. WTH!
Got the test light out and did some investigating and found that:
With the harness just before the wiper motor disconnected coming from the switch in position #1 the white wire is hot. See picture #1.
With the harness just before the wiper motor disconnected coming from the switch in position #2 the blue wire is hot. See picture #2.
With the harness just before the wiper motor connected both the blue and whited wires are hot. The pot metal at the motor is energized See picture #3.
Not sure what's happening. Thoughts?
See picture #4 for the light I have a question about. What is it?
Last edited by zrsteve; 01-05-2019 at 04:34 PM.