Greg F Posted March 5, 2018 Report Share Posted March 5, 2018 My brake lights work, but only if I stomp on it like no other. Most the time, just applying the brakes normally, do not light them up. Any ideas on how to fix this as a couple of people have gotten upset while following me. (New brake light switch, after market switch, ?.?) Thanks, Greg Quote Link to comment Share on other sites More sharing options...
Jerry Roberts Posted March 5, 2018 Report Share Posted March 5, 2018 Just to be sure that the problem is the switch , jump the two wires together and see if you now have a brake light . Both the original type of switch and the aftermarket style are available at a good price . Quote Link to comment Share on other sites More sharing options...
greg g Posted March 5, 2018 Report Share Posted March 5, 2018 Hydraulic switches get corrupted by old brake fluid, corrosion. Brake light circuits can develop electrical resistance in connections, grounds can get corrupted with age. I just changed my switch last year it made a big difference, I have also powered the switch through a new independent wire with an inline fuse, and run a dedicated wire from the light fixture to a good tight ground. Also make a grounding line from your body to the frame or engine. Quote Link to comment Share on other sites More sharing options...
Greg F Posted March 6, 2018 Author Report Share Posted March 6, 2018 Will try a new switch and hope that helps before I get rear ended.... Quote Link to comment Share on other sites More sharing options...
jesse harvey Posted March 6, 2018 Report Share Posted March 6, 2018 hello my 1936 plymouths have hydraulic switches..after time the stick.. i solved the problem with a chevy electric lever type switch..i mounted it to the floorboard above the brake pedal..i adjusted the switch to the point i can light the brake lights just by taking out the free travel ..the original switch is still in the master cylinder.. works great...maybe this will help jesse Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted March 6, 2018 Report Share Posted March 6, 2018 49 minutes ago, jesse harvey said: hello my 1936 plymouths have hydraulic switches..after time the stick.. i solved the problem with a chevy electric lever type switch..i mounted it to the floorboard above the brake pedal..i adjusted the switch to the point i can light the brake lights just by taking out the free travel ..the original switch is still in the master cylinder.. works great...maybe this will help jesse I did the same on my P-15 many years ago. Quote Link to comment Share on other sites More sharing options...
Greg F Posted March 7, 2018 Author Report Share Posted March 7, 2018 Will try that, if the new switch does not help my problem. As always thanks for the ideas...Greg Quote Link to comment Share on other sites More sharing options...
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