Bought my Fourth car yesterday! 1947 Oldsmobile series 76 fastback

[Electronic M]

Originally Posted by Tube TV

Those brake switches are made out of absolute crap now from China or Mexico. I had the same problem on my 57 P-350 delivery van.

Middle of the night the pressure would come up and the brake lights would decide come on till it drained the battery. I got tired of pulling the battery terminal off every night and rerouted the brake wiring to the ignition switch so the brakes would only light with the key on.

In addition to doing that my switch will chatter on and off with road vibration...I know because I have a relay installed between the switch and the lights and I can hear it chatter when I drive, and I can give the pedal a short hard poke and the chattering will stop.... perhaps I should hit up a junkyard with classics grab a few NOS switches and see if those help.