This is a 1986 Corvette. Sometimes the brake lights come on by themselves 5-10 minutes after I have parked the vehicle resulting in a dead battery. I've figured out that the problem has something to do with the master cylinder. I give it a smack on the end with a screwdriver and the lights go out, but if you wiggle the master cylinder slightly the lights come back on. I had my mechanic replace the power booster about 3 months ago but only noticed the light problem about 2 weeks ago. I don't drive the vehicle much at all but it makes me wonder if this is related to those repairs or if it is a separate problem. The reason that I think this is that I noticed that the electrical connector/warning switch on the master cylinder was loose. If that was done wrong, maybe there were other things done wrong. I tightened it and it seemed to make the problem go away but now the problem is back. What is happening here and is there a simple solution?
2007-03-21 07:50:00 · 6 answers · asked by brincko 1 in Cars & Transportation ➔ Maintenance & Repairs
It's definitely the switch and I'm going to replace it. It sits in the bracket somewhat loosely. When I push it in one more notch, the lights go out. However, any slight bump moves it back out of adjustment. I figure that the threads became worn or stripped during the process of replacing the booster causing it to be just loose enough to malfunction. All great answers. Thanks.
2007-03-23 08:05:55 · update #1
It sounds like the brake light switch is either malfuctioning or was missadjusted when the booster was replaced. Changing the booster in most cases requires the removal of that switch. To adjust the switch press the brake peddal down and push the switch all the way down, then pull up on the brake peddal. See if that works if not you might have to replace it. Help this helps
2007-03-21 08:01:55 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Yep, classic brake light switch problem. It's located next the the brake pedal arm, and it should be adjustable. I think when you are tapping on the master cylinder, it's causing the pedal to move a bit. As said above, when it's on, pull the pedal up to see if it goes off.
It will be easier to get to the switch on this car to fix it if you remove the seat.
2007-03-21 08:17:58 · answer #2 · answered by Anonymous · 0⤊ 0⤋
check the brake light switch
2007-03-21 07:58:49 · answer #3 · answered by technicanb 4 · 1⤊ 0⤋
replace the brake light switch..it is cheep and easy
2007-03-21 07:59:19 · answer #4 · answered by Anonymous · 0⤊ 0⤋
check the sending unit under the dash,by the brake pedal.it could be bad or loose.
2007-03-21 09:40:11 · answer #5 · answered by Anonymous · 0⤊ 0⤋
maybe your brakelight switch is bad or needs adjusting, it is located behind the arm of your brake peddle.
2007-03-21 16:46:21 · answer #6 · answered by shefixescars 4 · 0⤊ 0⤋