Mechanics

BRAKE LIGHTS FLASH ON THEN GO OFF WHEN PEDAL

1996 GMC C2500

Electrical problem
1996 GMC C2500 V8 Four Wheel Drive Automatic 250000 miles

I'm getting desperate. Haven't driven my pickup in six weeks. Can you help me?

I know this sounds pretty stupid, but I can't find the brake light switch on my '96 GMC truck, and my Chilton's manual is absolutely useless on this subject. Is there a mechanical switch under the dashboard at the brake pedal arm, (like on the '80's models), or is there a pressure activated switch attached to the master cylinder?

When applying the brakes, the brake lights illuminate for just a flash, then go off before enough pressure to work the brakes is applied. Please help!
Avatar
Remaking
November 28, 2008.




Hi:
It could be either a switch on the pedal or a hydraulic switch.

Her are pictures of both. You'll be looking for one or the other.


http://www.2carpros.com/forum/automotive_pictures/249084_ppp80171003_1.jpg




http://www.2carpros.com/forum/automotive_pictures/249084_ppp80172003_1.jpg



Let me know if this helps.

Joe



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