Brake Lights Stay On

Hi, the brake lights just started staying on recently....im guessing the pressure switch that is in the brake line must be bad? if i disconnect one wire from the switch the lights go out....im buying another switch , just want to see what you guys think....there are 2 switches ,one for front brakes and one for rear ...i disconnected the front one that was easy to get to.....69 cj5

 

My jeep only has one switch in the front. I’ve had this happen to me two separate times. I would order a few extra, I think they were crown and we all know the reputation they have.

 

Look for a NOS, good brand switch. They do show up on Ebay from time to time.

 

Is your brake pedal “tighter”, less free-play before it starts to apply the brakes? I’ve had my brakes start dragging as they warmed up, actuating the switch for the lights without ever touching the pedal.
-Donny

 

What Donny says makes a lot of sense. Usually when I have a switch fail it means the brake lights do not come on. If the brake pedal push rod is not adjusted to allow for some free play that could be the problem.

 

Ron Frances Electric, has whatever you need when it comes to 12V stuff.

 

this is a pressure switch in the brakeline with a tee....pressure is how it works.no adjustment

 

Yes, I have been working on old Jeeps for about fifty years and know that the switch is a pressure switch and there is no adjustment for that. The adjustment I referred to is with the brake pedal push rod, just as I said. If there is not enough free play in that the "pressure switch" will be under constant pressure.

 

Pretty simple concept, I think.

 

sorry, I misunderstood what you were saying, thought you were thinking it was a different switch...I changed the switch and brake lights work again....thanks

 

thanks guys, I bought a "standard" brand switch, brake lights are working again