I just installed my rebuilt 80 AMP alternator and now when the car is running and I turn on the headlight switch or rotate it to turn on the dome lamp:
1. The Oil Pres. gauge goes into the red (to the left).
2. The Water Temp goes most of the way to the right.
3. The Fuel and Voltage gauges both go to the right.
4. The Tach drops to 250rpm.
5. The left Turn Signal light (on the dash) illuminates.
6. The High Beam light illuminates.
(See video in link below)
https://www.dropbox.com/scl/fi/680d7...a78snd6ik&dl=0
I also noted that when I turn the ignition on, the tach jumps to the 250RPM spot before the engine is started.
During the course of about a 15 minute drive, and turning the Headlight Switch on and off many times, there was one time where the gauges operated normally when the lights were on. But when I turned them off and then back on it was back to being crazy.
Any ideas on this?
Thanks!