Guess the headlight Problem
The other night, I was driving my 70-1' around. I'm a 150 miles into testing out the newly rebuilt 4l60E with a vacuum modulator.(long post for another day)
It was still light out when I left, but I turn the headlights on anyway. No problem, then after about 20 miles, I turn around for the return trip, and its starting to get dark out. I'm noticing something odd with the dash lights pulsing. Eventual I notice that i do not have any headlights. I try the High beams. They work fine and no pulsing. I pull over, jiggle some wires, no help.
Drove home with the high-beams on.
I have the Front clip of a 70' (4 lights), the rest of the car is a 71'.
I've had a relay harness for years.
CS130D 105Amp LS Alternator
Battery is 3 months old
I investigated further last night. With just the ignition On, when I turn on the headlights, all the running lights are on, but the headlights are not. I can see a slight pulsing from the front marker lights. But the big tell, there is a very slight "clicking" sound. I trace that back to the light switch itself, and you can feel the clicks while holding the light switch knob.
I disconnected the relay harness, still the same clicking.
Picked up a new Light switch and floor dimmer switch last-night. ($24)
Going to Try the headlight switch first. I'm guessing the relay built into the switch died after 47 years.