OEM 2009 Chevrolet Silverado 1500 Brake Booster

2009 Chevrolet Silverado 1500 Parts Questions & Experts Answers

• Q: How to replace the hydraulic brake booster and flush the hydraulic brake system on 2009 Chevrolet Silverado 1500?

  A: The first step to replace the hydraulic Brake Booster and flush the hydraulic brake system is to understand brake fluid warnings about irritants and its impact on paint and electrical parts. The hydraulic system function will deteriorate when exposed to brake fluid from delco supreme 11(R), gm p/n 12377967 (Canadian P/N 992667), or equivalent dot-3 brake fluid which originates from a sealed and clean container. Check for brake fluid contamination by examining its state of mixing, layering patterns and discoloration in addition to analyzing the condition of master cylinder reservoir cap diaphragm and grommets. All listed items must be removed if contamination exists within the system including master cylinders (JD9 and JF3 and JF7) as well as front brake hoses (JD9 and JF3 and JF7 and JH6 and JH7) rear brake hoses (JF3 without JL4 and JF7 and JD9 and JF3 with JL4 and JH6 and JH7) front Brake Calipers (JD9 and JF3 and JF7 and JH6 and JH7) rear Brake Calipers (JD9 and JH6 and JH7) and brake denatured alcohol should be used for cleaning hydraulic brake pipes which must be dried using air with filtered non-lubricated components. All contaminated components should be replaced while cleaning the master cylinder reservoir followed by a damage assessment. Replacements should be made to the master cylinder reservoir cap diaphragm in cases of fluid contamination by water or dirt. The hydraulic brake system requires a fluid fill at maximum level inside the specified reservoir while the pressure bleeding process begins by filling this reservoir with correct brake fluid at maximum fill mark.