the cables are good..new connections to battery and to the frame, also frame to engine
both are # XXXXX cable securely attached
the switch has not been replaced or checked. I had to run a new wire from the switch to the solenoid when I first bought the car so it would start, but nothing else.
how do I check the switch for excessive resistance?
OK robert..I have a new clue. The switch tested fine with no resistance at all. I then tried running the engine with the alternator output wire disconnected..and the problem went away. All the lights work fine as well as the turn signals. Is it the alternator itself or somewhere in the wiring?
Good clue, ok, at this time, you need to check the charging voltage of the alternator when the engine is running. Using a Voltmeter, start the vehicle and check the charging voltage directly at the back of the alternator, then check it at the positive battery post, let me know what voltage readings you come up with. I think you are on to something there, also check the alternator and make sure that the mounting bolts are clean and secure, alternator grounds through the case, so it must have a good tight mounting to the engine...Let me know what you come up so we can continue....Thanks, Robert
OK, so the charge voltage at the alternator is 14.5 volts, and also at the battery positive. I found that the ring terminal on the alt. output post was pushed down onto the case of the alternator, so I elevated it. With engine running and lights on, connecting the alternator output wire turned lights off. Disconnecting the wire again did not turn them back on unless I grounded the alt.output post briefly. Weird huh?
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any new info?
I'm working on it, there are quite a few pages to download for the wiring system, I'll post some info for you as soon as I am able...
Thanks for the response to keep me on track...