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Dan, ASE Certified Technician
Category: Chevy
Satisfied Customers: 2270
Experience:  20 Year Factory Trained Current GM Technician
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1990 Chevy Silverado 1500: brakes..New Calipers, master cylinder

Resolved Question:

Just had brakes repaired on 1990 Chevy Silverado 1500. New Calipers, master cylinder, lines etc. in November 2009. Brake light on dash came on and stayed on, not blinking.
I checked for leaks, brake fluid, bled lines again lignt went off. After a couple of day it came on again and now is blinking 5 short blinks then off then 5 short blinks. Pedal is good brakes are good whats going on?
Submitted: 7 years ago.
Category: Chevy
Expert:  Dan replied 7 years ago.
Hello <a href="../profile.aspx?PF=32226257&FID=26"Customer

with the brake light flashing a code 5, that means there is a problem with the Dump valve for the rear anti lock brakes system. This can also be caused by low brake fluid level. Sometimes there can be a leak inside of the rear brake drums and causing the problems. If the brake fluid keeps going low, you need to carefully look and find the fluid leak. If this brake light keeps flashing a code and the fluid is full and the air is all bleed out, the dump valve is bad and need to be replaced.
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