Have a 1974 Plymouth Satellite, took it to work the other day and everything was fine went to leave and half my stuff wouldnt work. My brake vaccumm, gas gauge, turn signals, radio, and after market tach is not working. Everything else seems to be working fine. Checked and tested all my fuses and they are good. What should I try next? Thanks.
Brake vacuum isn’t electrical so look to the line to the engine for leaks. As for the electrical… if there is batt but stuff doesn’t work, look for broken grounds.
Your ignition switch return spring may be weak, turn your key a little to the left and see if things all work.