fireplug
1/2 ton status
In the bottom left corner of our dashes (well on my '76 anyway). Is it a warning for the e brake or a trouble light?
CK5
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The Brake Light...
- Thread starter fireplug
- Start date
1985_K5_Silverado
1/2 ton status
Both!fireplug said:
fireplug
1/2 ton status
Grrreat. I've noticed a couple times lately, it comes on and I have to hit the brake pedal a couple of times to get it to turn off. Is there anything in particular that it usually points to?
readymix
3/4 ton status
If you have drums start by adjusting them correctly, then bleed the brakes.
fireplug
1/2 ton status
readymix said:
Will do thanks!
fireplug said:
As said by others; both. It tells you when the parking brake is set. (I refuse to call it an "emergency" brake, cuz dangit, it's not so useful in emergencies
Ask me why I know this 
)Anyway, the light also comes on when there's a sizeable pressure difference from front to back. Usually this would mean you are waaay low on fluid, i.e. the hydraulic system needs love. Adjusting the rears is easy, and if not, bleed, and your early truck should be good.
For newer truck owners (1990-91) there's also the abomination of the RWAL, rear wheel anti lock. An evil thing, it will *blink* the brake light when it detects a fault, if the moon is full and the planets are out of alignment, or on prime numbered Tuesdays.
-- A
