Intermittent brake light!! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 12-04-2006, 02:45 PM   #1
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Default Intermittent brake light!!

The brake light has been coming on while driving for the last few days. It seems to be once I hit 25-30 mph and can stay on for up to 45 sec. Any ideas?
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Old 12-04-2006, 02:47 PM   #2
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This sounds like the brake switch is out of adjustment.

I'd mention how to adjust it....never looked at one though.
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Old 12-04-2006, 02:49 PM   #3
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agreed with Bill....do you get a chime when the brake light is on and moving??

also please check your Master Cylinder and Make sure that it is full of fluid
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Old 12-04-2006, 02:50 PM   #4
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I do use the e-brake regularly as I live in Seattle. Lot of hills.
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Old 12-04-2006, 02:51 PM   #5
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Yes it chimes and it'* driving me crazy.
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Old 12-04-2006, 02:52 PM   #6
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Your master cylinder is failing. At this point, I'd not drive the car for any reason. Check your master cylinder to see if it'* leaking fluid. The light and chime are 'deadly' warnings. Our experience with them says that you are in trouble.
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Old 12-04-2006, 03:10 PM   #7
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Took a peek and it looks like it has been leaking but the apparent leaky fluid was not wet it was dried. Also the reservoir was low. So how do I proceed from here?
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Old 12-04-2006, 03:14 PM   #8
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Replace the necessary parts to stop the leak. If it is the master cylinder or merely a seal on the top of the cap.

BTW..first time I read this..I thought.. actual brake lights on back of car.
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Old 12-04-2006, 03:17 PM   #9
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Not your fault I forgot to tell about the chime. Thanks though.
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Old 12-04-2006, 03:34 PM   #10
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BTW is the master something I can tackle on my own or should I leave that one to the pros?
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